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#1 |
Senior Member
![]() Join Date: Feb 2009
Location: Parker, Texas
Posts: 685
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Re: Spark Plugs What is wrong?
Just curious, you're running an Edelbrock carb. Are you still running a stock fuel pump, or a low pressure pump? Stock pumps put out too much fuel pressure.
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1970 2WD K5 1968 Camaro Conv 1967 Chevy SWB 1964 Malibu SS 1957 Corvette Pics www.picturetrail.com/wesmigletz |
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#2 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: Spark Plugs What is wrong?
He has bubbles everybody.
I had a head issue I got through this time last year. I had a plug that was stuck, wrung it off flush, removed head(s), magnaflux found crack, better performance rebuilt heads, I'm a happy camper. Hopefully it's just a gasket for you. I guess my plug was rusted in from coolant. Truck never smoked and ran great till I broke the plug while removing to take the header off to access the brake line/hose union better. Talk about a snowball! Good luck!
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#3 |
Registered User
![]() Join Date: Dec 2001
Location: Pace, FL
Posts: 2,155
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Re: Spark Plugs What is wrong?
Apparently we're the only ones besides the owner that realize his engine troubles go a little deeper than fuel and spark.
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1942 Master Deluxe 1969 C/10 1985 Blazer CUCV 1987 Jimmy 2004 Tahoe 2005 Silverado 1500 2005 Silverado 3500 |
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#4 |
Moderator
![]() Join Date: Jun 2017
Location: Cherryville, NC
Posts: 2,210
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Re: Spark Plugs What is wrong?
Yep...he has a constant bubble stream in the radiator...obvious water ingress into at least three cylinders...and an engine running like KRAP...
Pull the heads and take a look... Post a pic of the heads once they are off... Then we can all see what the issue really is... ![]() ![]() ![]() Its a Chevy...its not rocket science... ![]() ![]() ![]() |
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#5 |
Registered User
Join Date: Jul 2010
Location: texas
Posts: 180
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Re: Spark Plugs What is wrong?
Yes..thanks guys for all the comments....I am presently working on wiring....
soon will pull the heads...will let everyone know what I find...thanks...Tim |
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#6 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,334
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Re: Spark Plugs What is wrong?
^^^ This. I've used a buddy's SnapOn emission sniffer for this. I put it on CO (not HC, though maybe either works) and sniffed the filler neck, and even in a car where the leak was slight enough that there were no visible bubbles, the CO count would shoot up when placed over the filler neck.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#7 |
Registered User
Join Date: Mar 2009
Location: WARRENSBURG,MISSOURI,64093
Posts: 1,518
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I stand corrected! Knew it was one of the two!
Ben
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"Persistence is the twin sister of Excellence.one is a matter of quality,the other, a matter of time" ![]() “Serious Black” my 1971 Short Bed Fleetside Sold to an outstanding man in Lees Summit,Mo. “Gone, but by no means,Forgotten” |
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