3 replies to this topic

[rom44]

Hello all,

 

I did a compression test on my 1275 carb British Open Classic yesterday.

Car is from 1992 and has 120 000 miles.

I don't know if block/head were already rebuild.

 

Here are the results (warm engine, full throttle):

 compression test.png   2.22K   0 downloads

As pressures increased when I added oil, I guess rings or bore are a bit worn out? Probably normal for the mileage?

Edited by rom44, 27 July 2021 - 09:55 AM.

[Steve220]

You're always going to get a little bit more pressure from putting oil in the cylinder. There's not a cylinder 10% less than the highest, so i'd say it's ok. you've got 166psi on your lowest cylinder and that's still good!!

[rom44]

That's good news, thank you!

[bpirie1000]

Usually first signs are oil burning and sooty exhaust..

Regular maintennce and TLC should keep it going..

Enjoy..