Joined
·
29 Posts
Have this question as when setting timing on the picture. Everything is placed back from the cover and such. And when putting back the flywheel. Would it move the timing if the flywheel moves or doesn’t affect timing at all?
![Newspaper Book Publication Automotive tire Font]()
Rebuilding engine and setting timing
1 - 15 of 15 Posts
Joined
·
51 Posts
Once you put the timing set on, with the marks like that and tighten it down, it's set, you can rotate the engine and you will need to, to set the #1 piston at TDC for the distributer install
Joined
·
16,824 Posts
Just make sure it's TDC of the compression stroke, not the exhaust stroke of #1. You can figure that out by turning the engine by hand and holding your thumb on the #1 spark plug hole. On the compression stroke there will be air pushing against your thumb. On the exhaust stroke the exhaust valve is open and no pressure against your thumb.
The timing mark goes around twice for every revolution of the cam and distributor.
When you insert the distributor it might not line up with the slot in the oil pump shaft. A flashlight and a long screwdriver can be used to turn the oil pump driveshaft to line up the slot with the lug inside the gear on the distributor. Probably will take a few tries while keeping the crankshaft at TDC to get the distributor to seat fully.
It would help to know the year of the truck and which 4.3 you have.
The timing mark goes around twice for every revolution of the cam and distributor.
When you insert the distributor it might not line up with the slot in the oil pump shaft. A flashlight and a long screwdriver can be used to turn the oil pump driveshaft to line up the slot with the lug inside the gear on the distributor. Probably will take a few tries while keeping the crankshaft at TDC to get the distributor to seat fully.
It would help to know the year of the truck and which 4.3 you have.
Joined
·
35,569 Posts
It wouldn't hurt to take an old distributor and use the shaft to pre lube the engine.
Joined
·
29 Posts
It is a 2000 Chevy s10 4.3. The engine it had was bad on cylinder 4. Needed a new block as it already went through its overhaul. Had bought an engine from the junkyard. The engine came off from a 98 Chevy blazer 4.3. Which should be the same block. Got it overhauled. Followed the instructions from what the book informs me.
Had put everything together from reading the book. And no start. Have fuel and spark. But, timing is off. Was wondering if what I done was the culprit. But, seems I might not be on compression.
Joined
·
29 Posts
How would a deflood procedure goes if the engine is flooded? It sounds it wants to start. Can’t be timing now as got the distributor to be at the 6 o’clock position as the picture looks.
the only way I could describe the situation when starting the engine is that it makes a bang or fart noise. Not sure what that is indicating.
another part to add. On the camshaft. It’s on TDC #1 on the first mark than on the 2nd mark. On the book, it says it’s supposed to be on the 2nd mark than the first. I’ve used the balloon trick to find compression. And it always being on compression on mark one than two.
the only way I could describe the situation when starting the engine is that it makes a bang or fart noise. Not sure what that is indicating.
another part to add. On the camshaft. It’s on TDC #1 on the first mark than on the 2nd mark. On the book, it says it’s supposed to be on the 2nd mark than the first. I’ve used the balloon trick to find compression. And it always being on compression on mark one than two.
Attachments
Joined
·
29 Posts
Would love to. But, don’t have a spare one around to do that ☹
Joined
·
35,569 Posts
Go to the junkyard or get a priming tool at the parts store. Better to prime it than do a dry start.
Joined
·
29 Posts
If you’re implying on getting the oil to lubricate the block first from turning the little metal stick inside the engine? It’s already been done from using a long minus screwdriver. if it’s not that? Unsure what you mean.
Joined
·
35,569 Posts
You turned it by hand?? That’s not going to do it. You want to see oil coming from the tops of the rockers.
Joined
·
16,824 Posts
It's on the compression stroke for 180° of crankshaft revolution. Use the second mark. If you use the first one the timing is off.
Joined
·
29 Posts
Had added oil on the rockers before placing the cap on both heads.
Joined
·
35,569 Posts
Well...good luck with that.
Joined
·
29 Posts
not sure my scenario is here that either something got moved that it’s not being aligned with the harmonic balancer. Or had installed a wrong balancer and reason can’t get it to start. This the 2nd mark and the piston is nowhere near the top
Joined
·
29 Posts
Passing the 1st mark and piston at tdc
![Azure Rectangle Font Vehicle door Tints and shades]()
![Automotive tire Automotive design Motor vehicle Auto part Automotive wheel system]()
1 - 15 of 15 Posts
