sam_jam
Member
Registered: 12th Sep 08
Location: Crewe
User status: Offline
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hi all got a c20let that is down on compression on piston number 4 so sounds like a flat 4 all other cylinders are hitting 150 + on the compression tester and number forr is hitting 100 or below. The headgasket an all other stuff has been done an uprated only thing left for me today was fueling i put a bigger pump in just needed setting up now have lost the compression on number 4
just wondering if i have melted anything or bent a valve of some sort its quite tappy and becomes tappy when im coming off load/boost
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john_c20xe
Member
Registered: 10th Feb 08
Location: Eastbourne, EastSussex
User status: Offline
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so youve lost compression since you rebuilt it?
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sam_jam
Member
Registered: 12th Sep 08
Location: Crewe
User status: Offline
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you could say that
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john_c20xe
Member
Registered: 10th Feb 08
Location: Eastbourne, EastSussex
User status: Offline
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did you rebuild it yourself?
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sam_jam
Member
Registered: 12th Sep 08
Location: Crewe
User status: Offline
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no took it to chris astley motosport
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philip2
Member
Registered: 1st Oct 06
Location: n.wales/chester
User status: Offline
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should of dropped me a message matey.
whats the spec of the whole motor? headgasket thickness, how much meat was left on the face of the head?
put a drop of oil in the bore and crank over see if the compression goes up(oil should seal it) did the motor get an overbore or hone/re-ring?
what fuelling was on it?
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