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 |
jmargush |
Jun 4 2014, 04:12 AM
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#2
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Member Group: Members Posts: 460 Joined: 8-June 04 From: Goshen, IN Member No.: 2,176 |
Yes I drilled the throttle plate and it is much better but now the idle behaves as mentioned in the last post. What is making it keep going to 1800 rpm?
My mixture numbers are running like this: Idle 1800 rpm 13.1 - 14 Idle 800 rpm 19.6 - 20.7 Accel. 13.1 - 13.7 WOT 12.3 - 12.7 Cruise 13.1 - 13.8 From what I have read the accel. and WOT are pretty close to the correct range, Cruise is way too rich Any suggestions (Richen the Static and lean out the Dynamic?) Can you get a an adjustable fuel pressure regulator for L-Jet? Can one form D-jet with the adjustable screw be used? |
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