Last night I rebuilt my weber 32 ADFA on a 1978 124 Spider. I am NOT a mechanic and while I followed the instructions carefully, I certainly could have screwed something up.
Symptoms:
1. Very rough Idle
2. Takes 15-20 sec, for timing to return to base after accelerating (normal?)
3. Very long lag when pushing on accelerator before car actually has any power..can stall on small hill then all of sudden gets big burst of power (after hold down accelerator for maybe 15-20 seconds)..after that seems ok
Current Settings:
1. Timing 4 degrees BTDC
2. RPM 900
3. Dwell 52
4. Main Jets (125/140) (no change from original)
5. Air (170/185) (no change from original)
6. Venturi (3.5/3.5) (no change from original)
Any diagnostic help would be greatly appreciated, I'd even be glad to record the engine sounds or take photos if needed. Thanks again!
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Tune-up Help Needed
- TulsaSpider
- Posts: 1547
- Joined: Tue Apr 29, 2008 7:33 pm
- Your car is a: 1978 Spyder 124 2L
- Location: Tulsa, Ok
Re: Tune-up Help Needed
Well I guess you have attempted to adjust the idle mixture? I would time it to 10 degrees btdc
1978 Spyder 1800 make that 2L! Finally making real progress!
Re: Tune-up Help Needed
if you haven't diagnosed the problem before attempting repairs, there's a good chance you didn't address the problem. Did you have the same symptoms before working on the carb?
Re: Tune-up Help Needed
Always had the initial lag for power.
Rough idling was there before much is markedly worse after rebuild
taking time for timing to return to baseline .. not sure .. only noticed after but never looked for it before.
Yes, tried adjusting mixture.. but seems to have little if any effect.
Rough idling was there before much is markedly worse after rebuild
taking time for timing to return to baseline .. not sure .. only noticed after but never looked for it before.
Yes, tried adjusting mixture.. but seems to have little if any effect.
- TulsaSpider
- Posts: 1547
- Joined: Tue Apr 29, 2008 7:33 pm
- Your car is a: 1978 Spyder 124 2L
- Location: Tulsa, Ok
Re: Tune-up Help Needed
I would attempt to find a vacuum leak.
1978 Spyder 1800 make that 2L! Finally making real progress!