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? |
era vulgaris |
Mar 12 2016, 09:29 AM
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#2
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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 |
Thanks for the info guys. Depending on if I have time, I'll do the compression test either today or tomorrow, and then start pulling the carbs apart after.
I mentioned it in my other thread, but I don't think it's fuel related. My tank was cleaned and re-sealed in 2011 with all new SS fuel lines and flex hose. Carbs were rebuilt at that same time. I pulled the evap tank off yesterday to peak in the gas tank and there is not a fleck of anything in there and the sock is clean as can be. The accel pumps on the carbs all work, I can see fuel squirting out of each one when I look down the barrels and open the throttle. I did get eyes on the valve train as I mentioned a couple posts up when I did the valve adjustment yesterday. While the valves were all pretty tight, nothing seemed odd and I was able to adjust them as normal. The only thing odd was that while turning the engine I would occasionally hear a whistling sound. I couldn't tell where it was coming from (plugs were still in for valve adjustment). I'll report back with my findings after I do the compression test. Thanks for all the insight guys! |
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