Time to rebuild DRLA's? |
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Time to rebuild DRLA's? |
era vulgaris |
Mar 10 2016, 05:52 PM
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#1
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J is for Genius Group: Members Posts: 982 Joined: 10-November 13 From: Raleigh, NC Member No.: 16,629 Region Association: South East States |
This is a continuation from another thread, but to summarize my car very suddenly started driving like crap yesterday. In the middle of a drive it started popping and sputtering, and became pretty much undriveable. AFR was suddenly in the high teens.
At first I thought it was to do with fuel delivery. That turned out not to be the case. What I noticed today after I managed to get it to actually idle is that during warm up, cylinders 1 and 2 seem to be acting normal. But 3 and 4 heat up extremely quickly, and heat up past their normal idle temps and would probably continue to heat up well into the danger zone if I let them. I'm running DRLA 40's, and I'm still getting to know these carbs. The idle jets are clean. All I can think is that there's possibly a vacuum leak, maybe a seal or gasket failed suddenly while I was driving. They were rebuilt about 5 years ago though. Time for a rebuild? Anyone who knows Dells well know of anything I should check before I start tearing them apart? And does the rebuild kit from CB include everything I'll need? |
ThePaintedMan |
Mar 11 2016, 06:52 AM
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#2
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Advanced Member Group: Members Posts: 3,886 Joined: 6-September 11 From: St. Petersburg, FL Member No.: 13,527 Region Association: South East States |
That's a weird one. I too agree with the notion that nothing that a carb rebuild would fix would let go fast enough to cause an entire bank to run erratically.
I can, however vouch for the rebuild kits from Alfa1750 (can't remember his name, it's Giuseppe or something similar). Full disclosure, when I do rebuilds for people, that's where I order my parts. Everything is high quality and the kits are 100% complete every time. It's worth shipping them from Italy. I would suspect linkage as well, then accelerator pump function second. That would be the only thing in the carb which would affect both cylinders on the same bank, short of a massive air leak in or around the intake gasket(s). However, before you go tearing things apart, have you done a compression test? Let's rule out the internals first. Pull the plugs, hold the throttle wide open with ignition disabled and check all readings. |
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