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View Full Version : 86 2.8 vbelt converted to 91 3.1 serpentine

MonteC
06-30-2005, 05:26 PM
ok im trying to convert an 86 2.8 maro, to a serpentine set up from a 91/92 3.1 car.

first question... will it work? i just wanna make sure everything will bolt up, gm is know for changing little shit around. i just wanna confirm if it will work or not.

next, emissions, a/c, alternator. all of theses have different connectors/ hook ups.

the electircal for the alternator and the plugs for the a/c shouldnt be hard, just cut the 91 plugs off and splice them into the 86 wiring harness.

but how will the emmissions hook up? do i need emmissios for the car to run effieceintly, i.e. good gas mileage. if the car will run the same with out emmissions then let me know how to get rid of them.

i pulled all of the accesories, alt, ps pump, a/c comp, emissions pump, water pump, the crank pulley, and all of the mounting brakets and bolts. any thing else i need?

alright v6 gurus, give me some input. let me know if its just a straight forward job like i think it is, or if their is more to it.
Nate Dog 69
06-30-2005, 10:05 PM
86 routing

http://memimage.cardomain.net/member_images/7/web/571000-571999/571084_5_full.jpg


90 belt routing

couldn't find a good pic


my modified 3.4 belt routing

http://memimage.cardomain.net/member_images/1/web/325000-325999/325040_210_full.jpg
MonteC
07-01-2005, 02:25 AM
not to be an ass or anything but you didnt answer any of my questions...

but thanks for the pics.
Nate Dog 69
07-01-2005, 06:56 AM
it's ok, you cain still be an ass. :P

it was late & w/no pic of the 90+ routing it doesn't help anyone, but yeah, the pics are good ;)
MonteC
07-01-2005, 11:25 AM
but i dont really need pics of the routing.
cheyenne383
07-02-2005, 01:34 AM
Take the emmisions equip and trash it, plug any vaccuum holes, and bolt the new shit up. It'll work fine. As for connections (electrical and fluid) just use the non-broken ones, like if you fuck up a power steering hose, use the other style.

What is it you're thinking you're going to have trouble with?
CamaroGirl5.0
07-02-2005, 05:16 AM
Originally posted by cheyenne383

What is it you're thinking you're going to have trouble with?

im just parinoid, in the back of my head i know i can trash the emissions and it will allwork fine, but then ive never worked with swapping things on the 60* v6's. i just like to make 100% sure and have no doubt. im wierd.

but thanks.

montec
MonteC
07-05-2005, 04:50 PM
fyi, the water pumps dont match, you have to use the older style one with the serp pulley.

and the heater core hoses have to be serverly rerouted. oh ya their is more to come....
cheyenne383
07-06-2005, 12:46 PM
Make sure the water pump is going to turn the right way with a serpintine belt.
MonteC
07-12-2005, 02:10 PM
finally got the time to finish...

http://img311.imageshack.us/img311/9220/serpentine8jx.jpg

i guess the water pump is spinnging correctly, i never noted the old way.
MonteC
07-12-2005, 02:12 PM
p.s. 91.5" belt
IndyTruck
07-23-2005, 06:57 AM
You left off the air pump, right?

I'm doing this soon too. Well, mine's an 85 car getting an 89 2.8 motor and belt setup. I've got all the accessories and cut off the wiring harness....
MonteC
07-23-2005, 07:23 AM
yep, the air pump is sittin in the garage. it was a pain in the ass at times but overall not that difficult.

if you need any more pictures just let me know.