TOYOTA STARLET EP91 Compression Test

[DRiiFTiE]

Hi guys quick question!

Whats a good reading for compression test in engine?

and whats a low reading and bad sign..

Cheers

[Eynonz]

I asked this a while back and I was told that it should be 160 across all 4 for a healthy result.

[DRiiFTiE]

I asked this a while back and I was told that it should be 160 across all 4 for a healthy result.

Mines reading 180 on all 3 and last 1 (4) 185 so shes okay id say!

[H_D]

Mines reading 180 on all 3 and last 1 (4) 185 so shes okay id say!

I think that is a bit high tbh should be in the region of 150 - 170 max.

[DRiiFTiE]

I think that is a bit high tbh should be in the region of 150 - 170 max.

Okay, it doesnt matter too much anyway bud.. the engine is coming out weekend to be forged so !

Thanks anyway

[H_D]

The cause of the high compression will more than likely be due the head being skimmed to much in the past.

When forging go for a 1.6mm or 1.9mm head gasket to bring the compression back down.

[DRiiFTiE]

The cause of the high compression will more than likely be due the head being skimmed to much in the past.

When forging go for a 1.6mm or 1.9mm head gasket to bring the compression back down.

sweet budday! know any ep91 or 82 forsale?

[H_D]

Selling my ep82 after 22/07/2014 as mot is due on that date.

[DRiiFTiE]

Selling my ep82 after 22/07/2014 as mot is due on that date.

pm photo?

[scottieboi94]

Mine ran 170 through all cylinders

[H_D]

http://www.ukstarletowners.com/topic/74076-newish-daily-ep82-more-pics-6614-selling-up-soon/

[AdamB]

Anything below 140psi requires a rebuild ideally. Providing results for each cylinder are within 1 bar or 14.5 psi of each other then it's fine.

I personally wouldn't be using anything more than a 1.2mm headgasket on these engines, compression is already too low as it is imo.