What year did the 2.8 graduate to serpentine?
05-02-2003, 08:57 PM
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Car: 1986 W69 Special Edition
Engine: 2.8/ECM/Int/Exh
Transmission: T5
Axle/Gears: 3.42 posi
What year did the 2.8 graduate to serpentine?
I saw a 3rd gen last fall that had a 2.8 with the single serpentine belt... Even some of the old S-10 2.8's have the single... Why is mine a v-belt? I've also noticed that there are a couple of 1986 engine parts tha do not fit my engine. Some of the 85 parts will. Did I get a leftover 1985 powerplant in my 86 SE???
05-02-2003, 09:42 PM
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Car: 1999 Pontiac Trans Am
Engine: LS1 - 346 ci
Transmission: 4L60E
1987 + got the serpentine, which I am truly glad I have, except for the fact that I had to replace the tensioner cuz it rattled. But it's SOOO easy to remove accessories w/ the seprentine!
The project T/A doesn't have serpentine though, I saw an 87 GTA and it STILL had V-belts... when did they change over?
The project T/A doesn't have serpentine though, I saw an 87 GTA and it STILL had V-belts... when did they change over?
05-03-2003, 09:07 AM
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Car: 1986 W69 Special Edition
Engine: 2.8/ECM/Int/Exh
Transmission: T5
Axle/Gears: 3.42 posi
This is starting to prove my theory that I have a leftover 1985 engine... Hmmmm...
Does anyone else have an '86 Special Edition 'Bird that could take a peek under their hood for me???
Does anyone else have an '86 Special Edition 'Bird that could take a peek under their hood for me???
05-05-2003, 01:26 PM
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Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Not sure why you think you have a leftover '85...? As was said, 1987 started the serpentine belt system.
82-84 used 3 v-belts.
85-86 used 2 v-belts and a serpentine-style belt for the alternator, but no tensioner is present.
What parts don't fit your car? My '86 motor looks just like yours, except you either have the a/c delete option, or you changed out the heater box and p/s pulley.
82-84 used 3 v-belts.
85-86 used 2 v-belts and a serpentine-style belt for the alternator, but no tensioner is present.
What parts don't fit your car? My '86 motor looks just like yours, except you either have the a/c delete option, or you changed out the heater box and p/s pulley.
05-05-2003, 09:40 PM
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Car: 1986 W69 Special Edition
Engine: 2.8/ECM/Int/Exh
Transmission: T5
Axle/Gears: 3.42 posi
At one point, I suspected the EGR valve was sticking because the car would randomly shut off when I put the clutch in. So, I procured a new EGR valve for a 1986 2.8... It didn't seem to fit right, and the gasket was different... I traded it in for a 1985 one, and it fit just fine...? (Possible wrong part? I have no idea...)
Turns out my coil was intermittant, so I returned the EGR valve back to the parts store and bought a coil instead...
Yes, I have the A/C delete option. I figure, who needs A/C with t-tops...?
I also don't have the power locks option, either...
I can't remember, but there was another part that didn't seem to fit correctly, or couldn't be found on a 1986 parts list, or something that started me thinking a long time ago that the engine was old stock from '85...
Turns out my coil was intermittant, so I returned the EGR valve back to the parts store and bought a coil instead...
Yes, I have the A/C delete option. I figure, who needs A/C with t-tops...?
I also don't have the power locks option, either...I can't remember, but there was another part that didn't seem to fit correctly, or couldn't be found on a 1986 parts list, or something that started me thinking a long time ago that the engine was old stock from '85...
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05-06-2003, 12:00 AM
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Car: 13 Ram 1500/ 78 Formy
Engine: 5.7 / 7.4
Transmission: 6sp / TH350
Axle/Gears: 3.55 posi / 3.23
not that it really matters, but my old 2.8 had 1 v-belt for the ps. serp for everything else. didi thise that had/hane a smog pump use v-belt too?
05-21-2003, 09:59 PM
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Car: 1983, 1986
Engine: 2.8 2bbl, 2.8 MPFI
Transmission: 200C 3 speed, 700R4
Axle/Gears: 3.08, 3.42
Originally posted by TomP
Not sure why you think you have a leftover '85...? As was said, 1987 started the serpentine belt system.
82-84 used 3 v-belts.
85-86 used 2 v-belts and a serpentine-style belt for the alternator, but no tensioner is present.
What parts don't fit your car? My '86 motor looks just like yours, except you either have the a/c delete option, or you changed out the heater box and p/s pulley.
Not sure why you think you have a leftover '85...? As was said, 1987 started the serpentine belt system.
82-84 used 3 v-belts.
85-86 used 2 v-belts and a serpentine-style belt for the alternator, but no tensioner is present.
What parts don't fit your car? My '86 motor looks just like yours, except you either have the a/c delete option, or you changed out the heater box and p/s pulley.
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