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sambar308
4th May 2011, 04:08 AM
i have a cracked head on my gq tb42, dont know weather i should do the bottom end as well, the water is not going into the oil, i just top it up with water and runs like a dream the motor has done around 300,000 ks. it i do a test on the compression what should it be. and how would be for me to rebuild the bottom end...

YNOT
4th May 2011, 05:48 AM
Standard compression pressure for a Tb42 is 1177 kPa
minimum is 883 kPa
maximum variation between cylinders is 98 kPa.

Tony

sambar308
4th May 2011, 02:11 PM
i have a cracked head on my gq tb42, dont know weather i should do the bottom end as well, the water is not going into the oil, i just top it up with water and runs like a dream the motor has done around 300,000 ks. it i do a test on the compression what should it be. and how would be for me to rebuild the bottom end...

sorry for the spelling errors i had just got of night shift.

sambar308
7th May 2011, 01:12 PM
I have just done the compression test on the motor and it was all around 750 kpa the motor was cold. do the motor have to be warm to get a true reading.