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#21
09-21-2015, 11:15 AM
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I bet it's oil or water coming from somewhere.like said, small amount not yet showing low.
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 1970 amc rebel 4-door, faded blue paint,290 emblems on car, 455 under the hood.Turbo 400,3.15 gear.Best so far 1/8 et,8.90 on street tires, Since that I have added 400 heads. I call it a rat sleeper. |
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#22
09-21-2015, 11:27 AM
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Did you check the vacuum line at the trans modulator? Also, check the trans fluid level. I had another brand that did this when the modulator tanked.
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"Democracy is a beautiful thing, except for that part about letting just any old yokel vote." ~Jack Handey, Deep Thoughts |
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#23
09-23-2015, 02:27 PM
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Compression all at 180-185 so I guess I am ahead of the game so far...
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#24
09-24-2015, 06:49 AM
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At least in terms of ring and valve sealing you are, keep digging!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#25
09-24-2015, 08:33 AM
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What kind of valve seals do you have? Some harden rather quickly and let oil past. Probably just need new seals. 95% of the old small block chevys running around have the same deal going on lol.
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#26
09-24-2015, 10:06 AM
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Not sure what type of valve seals are in there... Engine was rebuilt before I got the car...
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#27
09-26-2015, 09:50 AM
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Can u swap another carb on to c if it is the carb?
__________________
1970 amc rebel 4-door, faded blue paint,290 emblems on car, 455 under the hood.Turbo 400,3.15 gear.Best so far 1/8 et,8.90 on street tires, Since that I have added 400 heads. I call it a rat sleeper. |
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#28
09-26-2015, 06:26 PM
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Quote:
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#29
09-29-2015, 11:20 PM
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Just something to check. I changed valve springs once and did not get the o-rings positioned correctly on the valve stem groove. Oil was being sucked down and I had smoke at idle and a little on initial acceleration then it would go away. Now I take a small suction cup that just fits over the retainer and see if I can get it to "suck" and insure the o-rings are seated in the groove.
MarkC |
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#30
09-30-2015, 06:25 AM
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Pull your dip stick and smell the oil, does it smell like gas ? Does the oil feel thin with the motor cold?
If so your fuel pump is bad.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#31
09-30-2015, 08:50 AM
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Does the car have power Brakes? I had a similar problem years ago that ended up being a leaking master cylinder, it was leaking into the brake booster, and at high engine vacuum was pulling the brake fluid into the intake. No evidence of a leak from the outside of the Master Cylinder or Booster. Brakes seemed to work fine, but after I replaced both the MC and Booster they worked much better and the smoking issue was gone.
Just something else to consider. I would try and cap off the vacuum line to the booster if it is a power brake car.
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Jeff R 60 Jaguar Mark 2, 3.8L Automatic 67 Sprint Firebird 230 OHC-6 4-Speed A/C 78 Catlina Safari, Pontiac 400 powered 77 Astre Formula, 215 Buick V-8 T-5 73 Lemans Safari, 400 4bbl 4-speed 71 Catalina Enforcer, 455 4bbl 06 Mallet Solstice #024 LS2, Now with a Tremec 6060 6-speed! 2012 F-150 Echo Boost (My local Ford Dealer SUX!!!) 2020 Dodge Charger Scat pack (recovered) |
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#32
09-30-2015, 11:53 AM
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Hey also check the vacuum line for the brake booster if it has power brakes! I seen them fail and suck brake fluid into the intake.
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#33
09-30-2015, 12:50 PM
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Quote:
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#34
09-30-2015, 02:09 PM
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Have you checked the valve seals yet??? Easy enough to pull a valve cover off and look around. Are they hard? Pc seals, white or black?
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#35
09-30-2015, 11:48 PM
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oops sorry camerajeff didnt read yo post first,
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#36
10-01-2015, 09:25 PM
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I didn't read everything so I don't know if anyone suggested this, but I always light up after I get over about 20mph. Never at idle. It helps keep the smoke out of the upholstery.
__________________
1981 Trans Am project -YJ 400 stroked to 488 CID-74cc Eheads-10.95:1-Northwind Intake-Holley Terminator-TH400-Moser rear-Dougs Headers.... |
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