Help with my engine lots of pics
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Member
Joined: Sep 2008
Posts: 122
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From: North Carolina
Car: 1985 Pontiac trans am
Engine: 350 4bbl
Transmission: 5-Speed
Axle/Gears: limited slip
Help with my engine lots of pics
Alright guys i bought this car in july and now that i have a good job i want to start restoring my engine. I have pics of my engine and carb just to make sure everything is there and everything is in good shape. The car runs and drives alright there is a lot of hesitation in the morning and there is a nice plume of smoke that comes out of the exhaust when i start it up. So any help would be great. I also have a big hole opened in what i think is the crankcase cover. should anything be there?






Supreme Member
Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: Help with my engine lots of pics
You need to get those wires off that exhaust manifold on the driver side. Where's this "hole" you are talking about?
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The car runs and drives alright there is a lot of hesitation in the morning and there is a nice plume of smoke that comes out of the exhaust when i start it up. So any help would be great. I also have a big hole opened in what i think is the crankcase cover. should anything be there?


What color is the plume of smoke? Is it only when started cold, only when started warm, or anytime?
Your EGR valve isn't connected, and the "air source" tube to the back of the carb air horn that it uses is open on the carb, which is an unfiltered air source for the engine. Won't make it run badly, but will let dirt into the engine.
There are other things, such as the carb bowl vent capped off (not a biggie, running wise). The vapor canister has been disconnected, can't tell what they did with the tank vent line from your photos, but my guess is they capped it off, meaning your tank has no means of maintaining pressure on the fuel as the fuel level drops. Have you noticed anything when you remove the gas cap?
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Joined: Apr 2008
Posts: 806
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From: Somerset, New Jersey
Car: 95 Z85 S10, 99 Formula
Engine: 4.3 CPI , LS1
Transmission: NV3500, T56
Axle/Gears: 3.08, 3.42
Re: Help with my engine lots of pics
only thing i could see what you might be talking about as a "hole" is the tubeish thing on the drivers side exhaust manifold.
with the stock air cleaners there was a tube that went to it and to help the engine warm up it would open and suck in the air.
with the stock air cleaners there was a tube that went to it and to help the engine warm up it would open and suck in the air.
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
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Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
From your user info:
"Car: 1985 Pontiac trans am
Engine: 350 4bbl"
There was no 350 in 1985 f-bodies. Were you told a 350 was installed? It's possible, but somewhere in the neighborhood of 25% of 3rd gens advertised as having a "350" actually do.
Also, your alternator has a flat multi-groove belt instead of v-belt. The flat multi-groove on the alternator and v-belts on the rest was only used in '86 & '87 (all v-belts '82-'85, serpentine from '88-'92). Any idea what's going on there?
"Car: 1985 Pontiac trans am
Engine: 350 4bbl"
There was no 350 in 1985 f-bodies. Were you told a 350 was installed? It's possible, but somewhere in the neighborhood of 25% of 3rd gens advertised as having a "350" actually do.
Also, your alternator has a flat multi-groove belt instead of v-belt. The flat multi-groove on the alternator and v-belts on the rest was only used in '86 & '87 (all v-belts '82-'85, serpentine from '88-'92). Any idea what's going on there?
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