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GQ TB42 Compression?

Tech Talk for Nissan owners.

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Posts: 340
Joined: Thu Dec 23, 2004 5:02 pm
Location: Canberra

GQ TB42 Compression?

Post by gqswb »

Just wondering how many K’s there GQ has done and what the compression of the motor is like? I had a scary problem with mine a few weeks ago when one of my cylinders dropped out (number 5) fixed the problem with some Nulon Lifter Free. Pheww…. I was told to start using lighter oil. Anyways forgot the compression of mine think it was 145-150 is that about right for 11/92 213,000 K’s on gas for about 4 years now.
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Joined: Wed Dec 24, 2003 11:26 pm
Location: Brisbane, Australia

Post by Rainbow Warrior »

Hate to scare you, but when I checked my last motor, which ran on premium ULP, I had readings from 160-180 dry & warm, and up to 200 after adding 4 squirts of oil.

They are tough blocks and even though I later drove it for 6 months with a blown head gasket, 3 of those months with water oil soup in the sump, the bottom end is still good and going to get rebuilt, head was rooted though, the water jacket had corroded into No6 cylinder. I just dropped a s/h motor in to fix.
Pat,
Brisbane, Australia,
JK 4door Rubicon, currently 4 Sale :(
It's a Jeep thing, I don't understand........
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Posts: 340
Joined: Thu Dec 23, 2004 5:02 pm
Location: Canberra

Post by gqswb »

Well thats fket. Monday I will have a look again, maybe i'm wrong.Image
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Posts: 1619
Joined: Wed Dec 24, 2003 11:26 pm
Location: Brisbane, Australia

Post by Rainbow Warrior »

gqswb wrote:Well thats fket. Monday I will have a look again, maybe i'm wrong.Image


Get another opinion just in case one of us has a dud guage before you go ripping it apart.
Pat,
Brisbane, Australia,
JK 4door Rubicon, currently 4 Sale :(
It's a Jeep thing, I don't understand........
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