idle on a 2056 with 9590 cam |
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idle on a 2056 with 9590 cam |
jmargush |
Dec 12 2013, 03:50 PM
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#1
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Member Group: Members Posts: 460 Joined: 8-June 04 From: Goshen, IN Member No.: 2,176 |
I am having trouble getting my new 2056 with a 9590 cam to idle. When I start it is idles around 500rpm or lower and I can't speed it up with the by pass screw.
I am running L-jet injection I hear a hissing sound when the engine is idling but I cannot find a vacuum leak, plenum couplers are new and all other hoses are in good shape. I can't find the hissing with a mechanics stethoscope so I was going to try to find a leak with propane but it has been too cold to work on it lately. The idle does seem to get a little better after it has warmed up a bit I think, it has been several weeks since I have had it out. One question I had is does the new cam require any change to the mixture? if so how do I go about adjusting the mixture? Thanks in advance for any input |
r_towle |
Dec 12 2013, 07:06 PM
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#2
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Custom Member Group: Members Posts: 24,585 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Sounds like you are doing the timing properly.
With L-jet, the idle speed lowers if there is a vacuum leak, and the car will not start at all if there is a leak to large. With D-jet, the idle speed will increase with an air leak, same as with carbs. Before you go and modify things, check everywhere for leaks, again. It amazes me how I miss leaks the first five times I look for them.... Typically I find all the leaks the last time I look for them. |
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