turbo6906 wrote:it has 157 800 on the clock. It does not smoke at all but still it is using oil. The exhaust residue is a little bit black tho but i have been told that is is normal for these bakkies.
That mileage is nowhere near excessive, but a lot would depend on how the motor has been serviced / treated. A compression test might give you some answers but I wouldn't even bother with that. Open it up as I said and have the bores mic'ed up .... you could get away with a ring replacement. Of course if you can and you go that route, then you would replace the big end bearings at the same time. I would even go so far as to replace the pistons since the landings would probably be a little worn as well .... and you get new gudgeon pins and new rings with the pistons. I would also do the valve stem seals, but wouldn't worry about the lifters unless they are noisy. Shouldn't cost an arm and a leg .... pistons will be the most expensive item at about a grand, but then you're 'A' for away!
My old 4Y overheated at about 180 000 kms because of a head problem. Replaced the head, but there was always a bit of a clatter when cold .... not bad, and you had to listen for it. It wasn't the lifters. It was because the piston skirts had deformed / collapsed slightly due to the overheating. Replaced the pistons with standard ones and did the big end bearings .... didn't even have to cut ridges on the bores .... just gave it a light hone and put it back together. After a further 35 000 kms it was only using about a pint per every 2000 kms, performed beautifully with an excellent fuel economy and plenty of guts.
Those motors are legendary!
