Spark plug and cooling issue...

Discuss the RB20, RB25 and RB26 series engines.
KC240RB
Posts: 98
Joined: Sat Jul 12, 2008 8:45 am
Car: 1990 240 SX RB20DET

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240z4u wrote:
On the contrary, I just don't expect to see lower end damage honestly. Unless he damaged every cylinder which is unlikely. Valves that don't close properly and or cams that are out of time would create a low compression reading.

Evan
Yeah I agree.

I did not have time to inspect the engine further tonight, but I do want to thank you all for giving me ideas in what I should inspect. Had I not asked for advice I would have probably got carried away and tore the engine apart since my mind was just racing with other things. I will inspect the belt and base timing, also do a warm compression test tomorrow night. It will give me a good reason to get away from the wife and drink some beers.


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zerodameaon
Posts: 112
Joined: Thu May 22, 2008 4:43 pm
Car: 1990 S13 Black Hatch with a currently NR RB25DET
1993 Red Vert
Location: San Diego CA
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Post

240z4u wrote:
It is low, however a cold motor and a closed throttle plate could yield numbers like that. I would be shocked to find out he damaged ringlands in every cylinder.. however impressive that would be.
I did that to my RB25. Damadge the ring lands on every cylinder on the side with the notch for the oil squiters.


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