Join Date: Jun 2009
Location: Saipan (!)
Mad Max is online now
Re: 2.8L issues knocking and fuel trim
I see in your sig that you have an MSD box?
I have a 79 LUV with a Buick 3.8 V6 in it. I bought it that way, and it also had an MSD box. I got the truck for little $$ since the PO could not get it to run properly...
Yep, MSD box was funky. I eliminated the box and installed an HEI dizzy unit and then? The truck ran super.
I'm not sating your box is bad, but try taking it out of the equation first.
Did the engine you installed come out of an automatic rig? If so, it did not have a pilot bushing/bearing in the crank.
If you did not install one, the input shaft can float around when the clutch pedal is depressed. This will lead to premature transmission failure and could possibly cause noises.
BTW, the flywheel/clutch assemblies are the same from 82 to 87. In 88 they changed the balance on these engines which means the flywheels are different.
1)'82 S10, 383, 700R4, Shorty
2) '85 S10, 3.4, 700R4 4x4 stretch cab (Redneck)
3) '90 S10 2.5, 5 speed shorty
4) '91 S10, Built 3.4, 5 speed shorty (Voodoo)
5) '92 S10, 2.5, 5 speed shorty, (Barbie)
6) '92 S10, 2.5 5 speed, Shorty
7) 1979 LUV, Buick 3.8 V6, TH 350 Shorty.