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EH 149 fluffy/popping exhaust note
Rank: Member
Groups: Registered
Joined: 4/01/2010(UTC)
Posts: 26
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Hi. I am after a few suggestions as to my red 6 slight miss problem. It happens at idle when cold or hot. The motor has been rebuilt with only about 500 miles on it and is completely stock.I have done a compression test on it and 4 of the cylinders have 120 psi 1 has 115psi and the other was about 112psi which I thought was OK.
I replaced the original distributor with a fully recond one as the timing was a little erratic but now it is very steady. Problem still there.
I replaced the carby with a fully recond stock 1 3/32 one.Problem still exits.
The car doesn't run too badly but at idle and in neutral you can hear this miss/popping sound from the exhaust.
I was wondering if it could be a inlet manifold leak. Ant ideas as to how I could check this. I believe you can use some carby clean and listen for the revs to change slightly.
Any help would be greatly appreciated.
Starting to run out of ideas.
Thanks in advance
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Rank: Veteran
Groups: Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 1,991
Was thanked: 2 time(s) in 2 post(s)
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you spray it around where the manifold bolts to the head if there is a leak there the engine note should change.
but usually with those symptoms i would also consider the possibility of a burnt vslve, probably in the cylinder with the low compression.
mind you it could be simply an exhaust leak.
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Fastlane
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EH 149 fluffy/popping exhaust note
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