| Aluminum Manifold Installed [message #166354] |
Sat, 14 April 2012 21:47  |
Jon payne
Messages: 495
Registered: May 2008
Karma:
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Senior Member |
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Guys,
Finished installing the AL intake today. When I started it up it was running rough and would not idle. After it warmed up it would idle but still rough. Fearing the intake was leaking I connected my vacuum gauge (on the manifold) and was only reading around 12- 13 inches. For a reference, last time time I checked it was ~18" at idle.
Since I did pulled the distributor during the intake removal I was wondering if I installed it back in the same position as when I removed it. So I pulled #1 plug and set it at TDC (on compression stroke) and found that the distributor was installed correctly. However when installing the distributor cap i noticed that #8 was not seated all the way on the cap. Unfortunately when i removed # 1 plug wire the terminal end stayed on the plug so I need to repair the plug wire tomorrow.
QUESTIONS: If by chance #8 plug wire was not installed and therefore not firing could this account for the low vacuum? I am thinking yes.
If no or #8 plug wire came undone when I removed the distributor cap, what is the best method to check to see if the intake is leaking?
If it is leaking......damn!
I am very confident that the gasket did not slip during the install as it was glued on. If it is leaking I would be thinking it was the gasket itself.
Any advice you guys can offer will be much appreciated!
Jon
Jon Payne
76 Palm Beach
Westfield,IN
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