2056 D-jet, running poorly, CHT on #4 is waay off |
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2056 D-jet, running poorly, CHT on #4 is waay off |
Bill Meyer |
Mar 15 2012, 03:04 PM
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#1
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Newbie Group: Members Posts: 44 Joined: 11-October 07 From: Prairie Village, KS Member No.: 8,210 |
My fresh 2056 is really running poor during break in, low power, slight miss maybe. One of the issues I've noticed is when using a laser temp gauge (pointed at the exhaust manifold, directly off the head) I've found #4 is running around 230 Degrees while all other cylinders are in the 330-360 range. I suppose it's more of a EGT temperature as I'm measuring the header, not the head, but regardless number 4 is out of whack and probably where some of my trouble is.
Pulling the #4 plug and it is noticibly wet, sort of oily too. I've got good spark there, swapped plugs too, checked wires. Any ideas what to look for next? |
VaccaRabite |
Mar 15 2012, 05:25 PM
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#2
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En Garde! Group: Admin Posts: 13,465 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
#4 is not firing, or only firing intermittantly. You car probably feels like it has no power at all.
Carbs? If so, pull the idle jet and clean the circuit, then do the same for the mains. But it was always my idles that got crap in them. Clean the spark plug. Fouled plug won't spark. Check valves and the other stuff, but if it was a new build they should be fine. Zach |
ChrisFoley |
Mar 15 2012, 06:21 PM
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#3
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I am Tangerine Racing Group: Members Posts: 7,937 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None |
#4 is not firing, or only firing intermittantly. You car probably feels like it has no power at all. Carbs? If so, pull the idle jet and clean the circuit, then do the same for the mains. But it was always my idles that got crap in them. Clean the spark plug. Fouled plug won't spark. Check valves and the other stuff, but if it was a new build they should be fine. Zach (IMG:style_emoticons/default/slap.gif) OP says he has good spark. Title says D-jet. I can think of two things: Intake leak; bad injector |
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