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Joined: Jun 2011
Posts: 43
Q
Wrench Fetcher
Wrench Fetcher
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Joined: Jun 2011
Posts: 43
HI,
I just replaced the road draft tube on my 1960 C10 283 v8 with a PCV kit from Eckler's. The reason was to eliminate the oil smell but now Crank Case smoke is constantly coming from the Oil Fill Breather as if the carburetor isn't drawing in the fumes. I connected the rubber grommet into the draft tube opening and the PCV onto the back of the Rochester 2 Jet Carb (where there was a plug.) There are no additional breathers on the Valve Covers. What is causing this problem and how can I solve it

Thank you in advance

Joined: May 2001
Posts: 7,440
Extreme Gabster
Extreme Gabster
Joined: May 2001
Posts: 7,440
Just guessing, but it could be there's not enough suction from the carb port. You might need a manifold port.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.
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D
Wrench Fetcher
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check that the pcv is not backwards.(speaking from experience)

Joined: Jun 2011
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Q
Wrench Fetcher
Wrench Fetcher
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Posts: 43
I checked and the PCV is in the correct direction and the Carb port is sucking like crazy! With the engine running and the hose to the pcv disconnected I see the crankcase smoke coming out of the hose but it also is coming out of the breather but not as much.... and if I take off a breather plug on the valve cover, it comes out of there also! The oily fumes are also causing my oil fill breather to drip oils. Also it
's very "doggy" when adding throttle. (sounds like a lot of vacuum but can't test as I have no vacuum gauge.... I can't imagine what's up

Joined: Jul 2001
Posts: 3,887
S
Cruising in the Passing Lane
Cruising in the Passing Lane
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Posts: 3,887
Originally Posted by QuestarNLinda
HI,
... I connected the rubber grommet into the draft tube opening ...
is that where the pcv comes from? not familiar with the Eckler kit, but the factory setup comes from the road draft hole to replace the tube .... have you checked compression? maybe too much blowby for the system to handle?

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature we find it attached to the rest of the world" John Muir
"When we tug a single thing on an old truck, we find it falls off" me
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Q
Wrench Fetcher
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Posts: 43
Yes a rubber grommet replaces the draft tube opening and in the center is a tube that connects to a PCV at the base of the carb. I may try a larger dia. hose so the carb takes in more blowby. Any thoughts??

Joined: Oct 2006
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B
Shop Shark
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try an oil suppliment. "Restore" for high milege engines for example

Joined: Jun 2011
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Q
Wrench Fetcher
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Posts: 43
Thanks... I'll try the Restorer" ... It may help some. What about adding a "T" were the road draft tube was and split to the pcv at the base of the carb as well as to a valve cover or somewhere else? Anyone know of a Fan device to siphon the fumes into the exhaust??

Last edited by QuestarNLinda; 10/11/2011 4:51 AM.
Joined: May 2001
Posts: 7,440
Extreme Gabster
Extreme Gabster
Joined: May 2001
Posts: 7,440
Originally Posted by QuestarNLinda
Thanks... I'll try the Restorer" ... It may help some. What about adding a "T" were the road draft tube was and split to the pcv at the base of the carb as well as to a valve cover or somewhere else? Anyone know of a Fan device to siphon the fumes into the exhaust??

You are asking us to tell you to slap a band-aid on the problem? You need to find the problem and fix it, not keep piling stuff on it.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.
Joined: Jun 2011
Posts: 43
Q
Wrench Fetcher
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Posts: 43
you're correct Cletis.... I stand corrected I don't want band-aides. Any advise? I have a lot of vacuum at the base of the carb as I posted earlier.

Joined: Mar 2002
Posts: 9,112
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,112
My suggestion would be to pull the valve out from the grommet and while it is still attached to the hose, check for vacuum right there.


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