Originally Posted by
modfather
hi all hope you have had a good xmas.
I have been having problems with my ca18det, misfiring while cold/cool not to bad when hot as in driven for around 10 miles. I do get some blowby with heavy drivingwhere the dipstick pops out .
I have tested all coil packs, injectors, dropping resistor which came back all within the specs in the manual, replaced spark plugs etc
done a dry compression test results where 150 ish across all 4. then i done a wet test results where 175 ish across all 4 .
I do suspect oil rings have gone
any ideas would be much appreciated