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Re: Smokin Hemi...
[Re: Xlr8us Rapidus]
#1628977
06/08/14 04:06 PM
06/08/14 04:06 PM
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Joined: Jan 2003
Posts: 1,411
Western NY
Xlr8us Rapidus
OP
super gas
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OP
super gas
Joined: Jan 2003
Posts: 1,411
Western NY
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Think I found the problem. #4 intake rocker is broken! Not sure why yet. These are a used set of Norris 1.7s. [image]  [/image]
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Re: Smokin Hemi...
[Re: Cab_Burge]
#1628979
06/09/14 08:35 AM
06/09/14 08:35 AM
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Joined: Jan 2003
Posts: 1,411
Western NY
Xlr8us Rapidus
OP
super gas
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OP
super gas
Joined: Jan 2003
Posts: 1,411
Western NY
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Quote:
The broken intake rocker should make the motor miss, not smoke
If the intake valve is not opening the piston is still pulling a vacuum, it's pulling oil past the rings and seals.
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Re: Smokin Hemi...
[Re: Xlr8us Rapidus]
#1628980
06/09/14 11:57 AM
06/09/14 11:57 AM
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Joined: Jan 2003
Posts: 74,992
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,992
U.S.S.A.
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Quote:
Did a leak down after warming engine and removing plug tubes. Only checked #1, 2 and 4. About the same results from all. 40% leakage... that don't sound good. Sounds like air under the blower.
IF you found 40% leakage I think you found the problem ... and it's not a broken intake rocker ... if the air is not coming out the intake or the exhaust then that leaves the rings ...
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Re: Smokin Hemi...
[Re: Xlr8us Rapidus]
#1628981
06/09/14 12:12 PM
06/09/14 12:12 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Think I found the problem. #4 intake rocker is broken! Not sure why yet. These are a used set of Norris 1.7s.
[image][/image]
Blowers create boost as you know, but also put a incredible strain on the rockers, push rods and lifters, a lot of strain. So you need a good valve train, I have no idea about your rockers?
The broken rocker is not the reason for 40% leakage, I'm betting the rings didn't seat during break in usually because of the wrong fuel mixture during break in.
Good luck with it, did you build it?
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The rocker is broken becuase of one of two reasons, it was defective or over worked, stressed, beyond its designed capabilities 
I hope none of the others start breaking now 
