A/C Bypass Pulley ?'s

tHepHooL · 03-28-2007, 09:06 AM

Alright, so the A/C compressor on my 2.8 started making odd noises the other day. I looked into replacing it and it will cost a pretty penny. The guy at the parts store suggested that I get an A/C Bypass Pulley till I had the money to drop on the new A/C stuff. So I removed the compressor and went to put the bypass pulley into the spot where the compressor was and there lies the problem. The pulley doesn't work. The mounting bracket on the pulley is about and inch to an inch and a half too wide and doesn't line up anywhere. Has anyone else tried to use this part? The bypass pulley is made by HELP! and the parts guy has called them and they are looking into why it doesn't fit this application. I guess it is a universal fix for the 4.3 as well. (Maybe even a fix for a V8 but not sure)

Just thought I would ask as I wait for an answer from the parts store. Does anyone know for sure if I can just get a smaller belt to put in there without my compressor? Thanx in advance!

92SDimeNJ · 03-28-2007, 12:40 PM

you must be taking about this wonderful peice of junk...I to am also waiting for a answer about this problem. When the guy looked up the 2.8l in the computer this part came up...i guess not huh

tHepHooL · 03-28-2007, 02:31 PM

HAHAHAHAHAHA!!

Yeah, that is the exact piece-0-junk I have as well.

Oh well, at least I am not alone. So what are you thinking about doing? There are a few options for belts and am wondering if you have tried the belt that is for the 2.8 without AC? Didn't know if we might be able to go that route. I know routing will be a little different but who knows...it might work. :P

92SDimeNJ · 03-28-2007, 02:33 PM

im not sure but i think the components are set up different on the motor without a/c from the factory i think the altenator is in a different spot...as of right now i do not know what to do

scys · 03-28-2007, 10:07 PM

I went to the junk yard and bought that pully from a non AC 4.3 for $10 and bolted it in. I'm not sure about the 2.8, but the only difference between a AC and non AC belt is a tensioner pully.

Cy

tHepHooL · 03-29-2007, 02:42 PM

Alright, so I went to the parts store and returned the pulley and bought a new belt. There is a routing diagram on the radiator for the belt with A/C and it shows how the routing is without A/C as well. I will be heading out there in a min to see how it works. I will let you know how it goes and I can snap a picture of the routing diagram along with the part # for the belt if it works.

MadMikeZ28 · 03-29-2007, 04:58 PM

I have an R4 with the single groove pully off my 84 2.8. I got it new but every time the a/c was used a fuse blew because of the idle solenoid that kicks it up to keep the s.o.b. running. So I just unplugged the a/c and the compressor was never used. Its a new Delco. Not rebuilt or another brand. I will sell it for $50+ shipping.

Darrylh82 · 03-31-2007, 07:58 AM

I say F* the pully. Take a string and make a new routing taking the pump out of the mix, get it as close to the exact length as possible. Once done run the string out flat and get the overall length, lets say 90". Go to the parts store and get a 900k6 or something equal. Usually they use the # in inches add a zero and for serp belts k5 or 6. Mine on my 4.3 is a k6. Im not sure if its gonna work on your 2.8 but my 91 4.3 had no probs. Hope it helped.

tommyboys10 · 03-10-2008, 03:53 PM

so is it safe to only use the adjustable pulley w/o the other pulley??

ChrisInVT · 03-10-2008, 04:37 PM

Looks like the exact A/C bypass pulley I took off my 4.3

Get me the measurements hole-to-hole and I'll see if it's the same dimensions as the one I have.

jtcfanof3 · 09-14-2008, 12:52 PM

I have this same issuie,and am making support brackets,right now I'm using an 11M wrench as a brace!
LOL
I will get pics later after Hurricane Ike passes through IL.

neo71665 · 09-14-2008, 01:29 PM

I'm pretty sure the 2.8 does not share the same AC delete pulley as the 4.3. I don't care what the computer at autozone tells the brain dead jackoff behind the counter. We don't share the same compressors why would the pulley be the same.

MadMikeZ28 · 09-14-2008, 05:24 PM

Quote: Originally Posted by neo71665

I'm pretty sure the 2.8 does not share the same AC delete pulley as the 4.3. I don't care what the computer at autozone tells the brain dead jackoff behind the counter. We don't share the same compressors why would the pulley be the same.

You are right about that.
The 2.8 will use a (dorman numbers) 34224 and a 4.3 will use a 34152.
But you really can't blame the idiots at autozone. All they know how to do is push keys on thier computer and where to look for the part on the shelf. Its the over paid computer programer that does not input the info correctly.
And the one in the pic could have been misboxed and thats why it does not work.

jtcfanof3 · 09-14-2008, 09:42 PM

Thats the same part# I got for my 89 2.8.
Anyway,here is a little enginuity for ya,mind you until tomorrow when I fab up two 1X6 pieces of 12ga steel to make supports out of,then I can remove my 11mm wrench!

MadMikeZ28 · 09-15-2008, 01:34 AM

HA!
Who needs the 11mm anyway.

What you guys should do is contact Motor Might (help manufacture) and tell them your pullys do not fit correctly. They may help you out. Tell them their investors might not be happy to see thier stock drop.

I can't see clearly what they are listed on the nasdaq as on the box label.

jtcfanof3 · 09-15-2008, 10:40 PM

OK,fabed my supports today,now you could easily buy some small turnbuckles and do it that way,but I have access too machines that I can fab up my own parts so.........
PIC:

MadMikeZ28 · 09-15-2008, 11:37 PM

I would have contacted the company and told them. They might have sent you the correct one.
And you did not have access to a machine to make a spacer for the bottom???

jtcfanof3 · 09-16-2008, 12:04 AM

LOL
Ya,I do,but is it worth the time?
Nah,256,XXX miles on that 2.8,those braces are good enough.
LOL
I may have to get a spacer now since your gonna rag on me,HEHE!
Ive considered calling help! and telling them,but I dont know how much good it would do.

MadMikeZ28 · 09-16-2008, 12:51 AM

Shit with the intronet its just an email away. In the old days I had to make calls before to get things right. Now I just find their web site and send an email any time of day.
Here, I will even get ya started
https://www.dormanproducts.com/cgi-b...51&vtime=85751

jtcfanof3 · 09-16-2008, 07:07 AM

Alright,you pushed me enough..........LOL!
Email sent!
Well see what I get back in responce.

MadMikeZ28 · 09-16-2008, 07:17 AM

I bet it will be totaly automated type of answers. You know the kind where some one reads the email but can only copy and paste pre writen all poupose answers that they feel would be the best response

jtcfanof3 · 09-16-2008, 07:59 PM

No responce!

MadMikeZ28 · 09-16-2008, 08:21 PM

Quote: Originally Posted by jtcfanof3

No responce!

Well sometimes in cases like this email seems like snail mail. Maybe give it another 12-24 hours or so.

jtcfanof3 · 09-16-2008, 08:26 PM

Ya,no biggie,you were stating what kinda responce I was gonna get,but I got nothing,LOL!!

MadMikeZ28 · 09-17-2008, 06:06 AM

Quote: Originally Posted by jtcfanof3

Ya,no biggie,you were stating what kinda responce I was gonna get,but I got nothing,LOL!!

Anything yet???

Well maybe no response is better than I what I said you would get.

03-28-2007, 09:06 AM	#1
tHepHooL Registered User Join Date: Mar 2006 Posts: 9 Location: Boone Iowa User is: OffLine	A/C Bypass Pulley ?'s Alright, so the A/C compressor on my 2.8 started making odd noises the other day. I looked into replacing it and it will cost a pretty penny. The guy at the parts store suggested that I get an A/C Bypass Pulley till I had the money to drop on the new A/C stuff. So I removed the compressor and went to put the bypass pulley into the spot where the compressor was and there lies the problem. The pulley doesn't work. The mounting bracket on the pulley is about and inch to an inch and a half too wide and doesn't line up anywhere. Has anyone else tried to use this part? The bypass pulley is made by HELP! and the parts guy has called them and they are looking into why it doesn't fit this application. I guess it is a universal fix for the 4.3 as well. (Maybe even a fix for a V8 but not sure) Just thought I would ask as I wait for an answer from the parts store. Does anyone know for sure if I can just get a smaller belt to put in there without my compressor? Thanx in advance!
	[Reply w/Quote]

03-28-2007, 12:40 PM	#2
92SDimeNJ LongNLow Age: 22 Join Date: Sep 2005 Posts: 139 Location: East Brunswick, NJ User is: OffLine	Re: A/C Bypass Pulley ?'s you must be taking about this wonderful peice of junk...I to am also waiting for a answer about this problem. When the guy looked up the 2.8l in the computer this part came up...i guess not huh
	[Reply w/Quote]

03-28-2007, 02:31 PM	#3
tHepHooL Registered User Join Date: Mar 2006 Posts: 9 Location: Boone Iowa User is: OffLine	Re: A/C Bypass Pulley ?'s HAHAHAHAHAHA!! Yeah, that is the exact piece-0-junk I have as well. Oh well, at least I am not alone. So what are you thinking about doing? There are a few options for belts and am wondering if you have tried the belt that is for the 2.8 without AC? Didn't know if we might be able to go that route. I know routing will be a little different but who knows...it might work. :P
	[Reply w/Quote]

03-28-2007, 02:33 PM	#4
92SDimeNJ LongNLow Age: 22 Join Date: Sep 2005 Posts: 139 Location: East Brunswick, NJ User is: OffLine	Re: A/C Bypass Pulley ?'s im not sure but i think the components are set up different on the motor without a/c from the factory i think the altenator is in a different spot...as of right now i do not know what to do
	[Reply w/Quote]

03-28-2007, 10:07 PM	#5
scys Registered User Join Date: Feb 2006 Posts: 81 Location: Ontario, Canada User is: OffLine	Re: A/C Bypass Pulley ?'s I went to the junk yard and bought that pully from a non AC 4.3 for $10 and bolted it in. I'm not sure about the 2.8, but the only difference between a AC and non AC belt is a tensioner pully. Cy
	[Reply w/Quote]


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03-29-2007, 02:42 PM	#6
tHepHooL Registered User Join Date: Mar 2006 Posts: 9 Location: Boone Iowa User is: OffLine	Re: A/C Bypass Pulley ?'s Alright, so I went to the parts store and returned the pulley and bought a new belt. There is a routing diagram on the radiator for the belt with A/C and it shows how the routing is without A/C as well. I will be heading out there in a min to see how it works. I will let you know how it goes and I can snap a picture of the routing diagram along with the part # for the belt if it works.
	[Reply w/Quote]

03-29-2007, 04:58 PM	#7
MadMikeZ28 doing it for mom Age: 40 Join Date: Jul 2006 Posts: 2,089 Location: In your basement User is: OffLine	Re: A/C Bypass Pulley ?'s I have an R4 with the single groove pully off my 84 2.8. I got it new but every time the a/c was used a fuse blew because of the idle solenoid that kicks it up to keep the s.o.b. running. So I just unplugged the a/c and the compressor was never used. Its a new Delco. Not rebuilt or another brand. I will sell it for $50+ shipping.
	[Reply w/Quote]

03-31-2007, 07:58 AM	#8
Darrylh82 Registered User Join Date: Apr 2006 Posts: 77 Location: Pembroke, NH User is: OffLine	Re: A/C Bypass Pulley ?'s I say F* the pully. Take a string and make a new routing taking the pump out of the mix, get it as close to the exact length as possible. Once done run the string out flat and get the overall length, lets say 90". Go to the parts store and get a 900k6 or something equal. Usually they use the # in inches add a zero and for serp belts k5 or 6. Mine on my 4.3 is a k6. Im not sure if its gonna work on your 2.8 but my 91 4.3 had no probs. Hope it helped.
	[Reply w/Quote]

03-10-2008, 03:53 PM	#9
tommyboys10 Registered User Join Date: Mar 2007 Posts: 52 Location: San Diego, Ca User is: OffLine	Re: A/C Bypass Pulley ?'s so is it safe to only use the adjustable pulley w/o the other pulley??
	[Reply w/Quote]

03-10-2008, 04:37 PM	#10
ChrisInVT I Rather Be Wheelin' Age: 25 Join Date: May 2007 Posts: 4,411 Location: The Woods, VT User is: OffLine	Re: A/C Bypass Pulley ?'s Looks like the exact A/C bypass pulley I took off my 4.3 Get me the measurements hole-to-hole and I'll see if it's the same dimensions as the one I have.
	[Reply w/Quote]

09-14-2008, 12:52 PM	#11
jtcfanof3 Fan of the S-10 Age: 32 Join Date: Aug 2005 Posts: 2,529 Location: Sullivan Illinois User is: OffLine	Re: A/C Bypass Pulley ?'s I have this same issuie,and am making support brackets,right now I'm using an 11M wrench as a brace! LOL I will get pics later after Hurricane Ike passes through IL.
	[Reply w/Quote]

09-14-2008, 01:29 PM	#12
neo71665 4x4 v6 blazer Age: 28 Join Date: Oct 2004 Posts: 3,375 Location: rison arkansas User is: OffLine	Re: A/C Bypass Pulley ?'s I'm pretty sure the 2.8 does not share the same AC delete pulley as the 4.3. I don't care what the computer at autozone tells the brain dead jackoff behind the counter. We don't share the same compressors why would the pulley be the same.
	[Reply w/Quote]

09-14-2008, 05:24 PM	#13
MadMikeZ28 doing it for mom Age: 40 Join Date: Jul 2006 Posts: 2,089 Location: In your basement User is: OffLine	Re: A/C Bypass Pulley ?'s Quote: Originally Posted by neo71665 I'm pretty sure the 2.8 does not share the same AC delete pulley as the 4.3. I don't care what the computer at autozone tells the brain dead jackoff behind the counter. We don't share the same compressors why would the pulley be the same. You are right about that. The 2.8 will use a (dorman numbers) 34224 and a 4.3 will use a 34152. But you really can't blame the idiots at autozone. All they know how to do is push keys on thier computer and where to look for the part on the shelf. Its the over paid computer programer that does not input the info correctly. And the one in the pic could have been misboxed and thats why it does not work. Last edited by MadMikeZ28 : 09-14-2008 at 05:25 PM.
	[Reply w/Quote]

09-14-2008, 09:42 PM	#14
jtcfanof3 Fan of the S-10 Age: 32 Join Date: Aug 2005 Posts: 2,529 Location: Sullivan Illinois User is: OffLine	Re: A/C Bypass Pulley ?'s Thats the same part# I got for my 89 2.8. Anyway,here is a little enginuity for ya,mind you until tomorrow when I fab up two 1X6 pieces of 12ga steel to make supports out of,then I can remove my 11mm wrench!
	[Reply w/Quote]

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09-15-2008, 01:34 AM	#15
MadMikeZ28 doing it for mom Age: 40 Join Date: Jul 2006 Posts: 2,089 Location: In your basement User is: OffLine	Re: A/C Bypass Pulley ?'s HA! Who needs the 11mm anyway. What you guys should do is contact Motor Might (help manufacture) and tell them your pullys do not fit correctly. They may help you out. Tell them their investors might not be happy to see thier stock drop. I can't see clearly what they are listed on the nasdaq as on the box label.
	[Reply w/Quote]

09-15-2008, 10:40 PM	#16
jtcfanof3 Fan of the S-10 Age: 32 Join Date: Aug 2005 Posts: 2,529 Location: Sullivan Illinois User is: OffLine	Re: A/C Bypass Pulley ?'s OK,fabed my supports today,now you could easily buy some small turnbuckles and do it that way,but I have access too machines that I can fab up my own parts so......... PIC:
	[Reply w/Quote]

09-15-2008, 11:37 PM	#17
MadMikeZ28 doing it for mom Age: 40 Join Date: Jul 2006 Posts: 2,089 Location: In your basement User is: OffLine	Re: A/C Bypass Pulley ?'s I would have contacted the company and told them. They might have sent you the correct one. And you did not have access to a machine to make a spacer for the bottom???
	[Reply w/Quote]

09-16-2008, 12:04 AM	#18
jtcfanof3 Fan of the S-10 Age: 32 Join Date: Aug 2005 Posts: 2,529 Location: Sullivan Illinois User is: OffLine	Re: A/C Bypass Pulley ?'s LOL Ya,I do,but is it worth the time? Nah,256,XXX miles on that 2.8,those braces are good enough. LOL I may have to get a spacer now since your gonna rag on me,HEHE! Ive considered calling help! and telling them,but I dont know how much good it would do.
	[Reply w/Quote]

09-16-2008, 12:51 AM	#19
MadMikeZ28 doing it for mom Age: 40 Join Date: Jul 2006 Posts: 2,089 Location: In your basement User is: OffLine	Re: A/C Bypass Pulley ?'s Shit with the intronet its just an email away. In the old days I had to make calls before to get things right. Now I just find their web site and send an email any time of day. Here, I will even get ya started https://www.dormanproducts.com/cgi-b...51&vtime=85751
	[Reply w/Quote]

09-16-2008, 07:07 AM	#20
jtcfanof3 Fan of the S-10 Age: 32 Join Date: Aug 2005 Posts: 2,529 Location: Sullivan Illinois User is: OffLine	Re: A/C Bypass Pulley ?'s Alright,you pushed me enough..........LOL! Email sent! Well see what I get back in responce.
	[Reply w/Quote]

09-16-2008, 07:17 AM	#21
MadMikeZ28 doing it for mom Age: 40 Join Date: Jul 2006 Posts: 2,089 Location: In your basement User is: OffLine	Re: A/C Bypass Pulley ?'s I bet it will be totaly automated type of answers. You know the kind where some one reads the email but can only copy and paste pre writen all poupose answers that they feel would be the best response
	[Reply w/Quote]

09-16-2008, 07:59 PM	#22
jtcfanof3 Fan of the S-10 Age: 32 Join Date: Aug 2005 Posts: 2,529 Location: Sullivan Illinois User is: OffLine	Re: A/C Bypass Pulley ?'s No responce!
	[Reply w/Quote]

09-16-2008, 08:21 PM	#23
MadMikeZ28 doing it for mom Age: 40 Join Date: Jul 2006 Posts: 2,089 Location: In your basement User is: OffLine	Re: A/C Bypass Pulley ?'s Quote: Originally Posted by jtcfanof3 No responce! Well sometimes in cases like this email seems like snail mail. Maybe give it another 12-24 hours or so.
	[Reply w/Quote]

09-16-2008, 08:26 PM	#24
jtcfanof3 Fan of the S-10 Age: 32 Join Date: Aug 2005 Posts: 2,529 Location: Sullivan Illinois User is: OffLine	Re: A/C Bypass Pulley ?'s Ya,no biggie,you were stating what kinda responce I was gonna get,but I got nothing,LOL!!
	[Reply w/Quote]

09-17-2008, 06:06 AM	#25
MadMikeZ28 doing it for mom Age: 40 Join Date: Jul 2006 Posts: 2,089 Location: In your basement User is: OffLine	Re: A/C Bypass Pulley ?'s Quote: Originally Posted by jtcfanof3 Ya,no biggie,you were stating what kinda responce I was gonna get,but I got nothing,LOL!! Anything yet??? Well maybe no response is better than I what I said you would get.
	[Reply w/Quote]