1990 serpentine setup in my 1986

[VAL]

Well, I finally found a serpentine system I wanted for a long time now. I found a 1990 C1500 at the wrecker yard, and I pulled the serpentine setup off of it. I Got the whole thing with all the accessories for $150. The reason I went with the 1990, is because it has provision for the smog pump, which I have to have in my 86 to pass emissions. I have done some research online about it, but I still have some questions about doing the conversion.
I already have the TBI heads on my 86, so I don't think the bolt on will be an issue. I have all the accessories off the 1990(power steering pump, a/c compressor, alternator, water pump, clutch and fan, water pump pulley and balancer pulley), except for the smog pump, and I got to have it in AZ. My question is, can I use the smog pump that's currently on my 86? will it work? I also already have a CS-130 alternator in my truck with the wiring adaptor, Will I be able to use it? I'm sure Ill have more questions for you guys as I get started on this conversion, so any help and advice will be greatly appreciated.

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[RetroC10Sport]

You will definitely need the pulley for the smog pump however, I am not sure it will work with those brackets. If not, you will need to find a CA truck with a 4.3 or SBC or any car with a V8 for the pump.

You will have to take the idler off and get a different belt as well as I believe the smog belt is longer.

 

[VAL]

You will definitely need the pulley for the smog pump however, I am not sure it will work with those brackets. If not, you will need to find a CA truck with a 4.3 or SBC or any car with a V8 for the pump.

You will have to take the idler off and get a different belt as well as I believe the smog belt is longer.

I while back, I had a serpentine setup up off a 1989 C3500 454 engine, and it had a smog pump, and I remeber it was very similar to one I currently have on my 86, except for the pulley and the valve had a couple wires going to it. Was wondering if maybe that one would work out.

 

[VAL]

I've been doing some research on the conversion. It seems that the passenger side lower bracket(smog pump area) will have to be trimmed, to clear the mechanical fuel pump. There's a lot of info on the conversion, but minimal info on the trimming of the bracket. Does anybody have any info on this?

 

[VAL]

I finally got everything together and cleaned up. I'm gonna start the conversion tomorrow morning. I guess I'll be the first to do a documented detailed conversion while retaining the smog pump. I've read many write-ups on this project, but none with smog.

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[Swims350]

really? I've had one for sale on here for awhile just like hat ya got. I would have let it go for less.

 

[VAL]

really? I've had one for sale on here for awhile just like hat ya got. I would have let it go for less.

I figured it was a pretty good deal, being that I got all the accessories and ac lines, clutch fan etc, water pump etc.

 

[Swims350]

only thing wrong with mine is the ac compressor unknown condition and the alt. is shot. I have the belt water pump fan tensioner, brackets all of it even ps pump if someone wanted. I've had it for awhile nobody wants the setup i guess.

 

[VAL]

only thing wrong with mine is the ac compressor unknown condition and the alt. is shot. I have the belt water pump fan tensioner, brackets all of it even ps pump if someone wanted. I've had it for awhile nobody wants the setup i guess.

Its probably because the non smog or vortec serpentine set ups are the more desirable of the bunch. I had no choice in the matter, Arizona emissions suck.

 

[Swims350]

mines non smog there's no air pump at all for mine it's just like the one you have

 

[VAL]

mines non smog there's no air pump at all for mine it's just like the one you have

The setup I have has a provision for a smog pump under the ac compressor.

 

[Swims350]

mine has none

 

[VAL]

I will be using my existing smog pump, just changing out the pulley. I didn't meant to cause confusion. The set up I have didn't come with a smog pump, but it does have provisions for it.

 

[VAL]

I'm thinking about how to reroute the fuel line, from the pump to carb, because I'm seeing that it runs right where the pass side bracket goes on.

 

[VAL]

Well, I got some progress done today, it is going a lot smoother than expected. I was able to use my existing steerling hoses with a little tweaking, I was able to fit in my existing R4 compressor with the same lines, just gotta swap out the pulleys. Anybody know anything about that, and can help me out.

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