shaking at idle
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today while I was reworking my cylinder head, I found #5 and #6 exhaust valve only holding 10 Hg, so I reworked the seats and they are back to 25 Hg.
here are some pics of my rebuild the pictures with the exhaust valve out, that is after I reworked it (on a peterson 25 guide and seat machine) the picture with the piston, this was the worst of them(just alot of carbon build up) |
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here is before and after pics
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when you say shaking at idle are you talking about like sitting at a stop light and all of the sudden your truck starts to shake a little? cus i have that problem every now and then some times worse then others
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Good work Cummins Guy, very nice! :tu:
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Originally Posted by t-bone117yamaha
(Post 768577)
when you say shaking at idle are you talking about like sitting at a stop light and all of the sudden your truck starts to shake a little? cus i have that problem every now and then some times worse then others
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Originally Posted by t-bone117yamaha
(Post 768577)
when you say shaking at idle are you talking about like sitting at a stop light and all of the sudden your truck starts to shake a little? cus i have that problem every now and then some times worse then others
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so is it something that i should look into and maybe turn up the idle a bit? or is it just something that wont really make a difference other then stopping a little bit of shaking every now and then? thanks
Tanner |
What's your timing set at? If you increase the timing it will shake the engine a bit more. Although not sporadically... Is your KSB cycling on and off?
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mine did the same thing. almost like a nasty lope sometimes. especially after getting into it hard for a long shot. i some things i thought of are maybe timing, possible air in fuel issue, or idle too low. i turned the pump up some more to bring my idle up 100 rpm and it seems to be doing better now. i just havent had time to look into messing with my timing yet since its advance 1/8" to the head.
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Its probably a injector with a bad pop... Clean and pop test your injectors...
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