Cm2250 overhead question
04-19-2021, (Subject: Cm2250 overhead question ) 
Post: #1
Cm2250 overhead question
When doing my overhead on cm2250 and I do letter C it does both 3 and 4. The intake and exhaust are both loose. Any ideas what I'm doing wrong?
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04-19-2021, (Subject: Cm2250 overhead question ) 
Post: #2
RE: Cm2250 overhead question
I would go by firing order A1 B5 C3 then A6 B2 C4 (Letter/Cylinder#)
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04-19-2021, (Subject: Cm2250 overhead question ) 
Post: #3
RE: Cm2250 overhead question
Then I turn the motor over a full turn to C again and number 4 is tight both exhaust and intake and 3 Only exhaust is loose...
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04-19-2021, (Subject: Cm2250 overhead question ) 
Post: #4
RE: Cm2250 overhead question
I tried that and C on 4 both tight and 3 only 1 loose
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04-19-2021, (Subject: Cm2250 overhead question ) 
Post: #5
RE: Cm2250 overhead question
I tried the firing order A1 and then it jumps to B 2
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04-19-2021, (Subject: Cm2250 overhead question ) 
Post: #6
RE: Cm2250 overhead question
I tried C again and only exhaust on 3 is loose and 4 both are tight
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04-19-2021, (Subject: Cm2250 overhead question ) 
Post: #7
RE: Cm2250 overhead question
I think I'm doing this wrong. When it's A6 is it the last cylinder? 123456 just like I was changing a injector?
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04-19-2021, (Subject: Cm2250 overhead question ) 
Post: #8
RE: Cm2250 overhead question
(04-19-2021 )jimeneztrans84 Wrote:  I think I'm doing this wrong. When it's A6 is it the last cylinder? 123456 just like I was changing a injector?
yes
A is cylinder 1
B is 5
C is 3
then when you bar the engine again
A is 6
B is 2
C is 4

if both 3 and 4 exhaust rockers are loose at C someone screwed up the adjustment or (possible mechanical issue) because lets say you start at A which is 1 and 6 only one of those cylinders the rockers should be loose and on the opposite cylinder all the rockers should be tight.. The loose rockers are the ones you are adjusting.. So if you did 6 first then you go 2 and 4 and then 153..
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04-19-2021, (Subject: Cm2250 overhead question ) 
Post: #9
RE: Cm2250 overhead question
I figured it out I was doing it wrong... damn the motor sounds nice when you do an overhead. What a difference in sound.
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