Got new Racing beat headers for my 85 GS and now I cant Idle
10-07-04, 10:28 PM
#1
Got new Racing beat headers for my 85 GS and now I cant Idle
I just got my racing beat exuahst for my 85 GS (cant spell) and I just put it all on, Headers, Presilencer and muffler. Got it all hooked up pretty good if I say so myself. Well anyways when i fired up the engine, i hear a loud screeching sound coming from, i believe the carb. When I got out of the car to check and actualy listened my car warmed up and the choke popped in. Then my car stalled. Now my car wont idle either. I capped off all the holes on my carb so I wouldnt have a vacume leak. (Oh I still have the stock carb, racing beat said it can be done. ) SO after there is no vacume leak my car still cant idle. I was wondering if anyone can please help me. I was thinking to raise the idle up but dont know where to do it. My car trys to idle and kinda did for like 5 min. at 500 RPMS. thats not good i believe. SO if anyone can offer me any advice, that would be appreciated. Thanks
10-07-04, 10:36 PM
#2
What about the ACV (Air Control Valve) and air pump? Did you remove the ACV and use a block off plate? It sounds like you have a large vacuum leak. Check the ACV. I would also check to make sure you didn't accidently remove the brake booster line or the hose for the shutter valve (located under the carb).
10-08-04, 09:22 AM
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There is a hose (approx. 1/2"dia.) that you should have plugged off in the process. It's on the bottom of the carb at the firewall. Recheck how well this is plugged off. I had this same problem and found the hose had a crack in it right at the bend. Probably due to exessive heat over the years.
10-08-04, 09:32 AM
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Odds are you have a vacuum leak. Are you sure you got a good seal between the intake manifold and the ACV block off plate? When I did my header, I just used some silicone sealant stuff and it didn't quite do the job. I went back and put some paper gasket material between the manifold and the block off plate and that solved everything. If you want to find a vacuum leak, with the car running, spray some carb cleaner around possible areas and the engine will speed up if you spray around an actual leak.
10-08-04, 07:07 PM
#7
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Did you use both of the block-off plates that came with it? Also, did you actually remove the air pump? I just installed this same system a couple of weeks ago without issue, so I'm guessing that you have a vacuum leak at one of those two points. Good luck!
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10-08-04, 08:58 PM
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Originally Posted by 1stgen_tn
There is a hose (approx. 1/2"dia.) that you should have plugged off in the process. It's on the bottom of the carb at the firewall. Recheck how well this is plugged off. I had this same problem and found the hose had a crack in it right at the bend. Probably due to exessive heat over the years.
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