The engine has not been properly repaired and the mechanic who did the job should be responsible for rectifying the problem.

I don't understand why an engine overhaul was recommended for an oil leak but since the job had been carried, something is wrong somewhere.

One of the cylinder could be low on compression and one way of find out is to get a compression test done.

If the valves are not adjusted to correct specification, you can lose compression causing the problem.

Answered by KHLow2008 (expert)
39,792 answers provided

Thanks so much for the response! We will get a compression test done and bring it to another mechanic. We are currently travelling in South America, and we've driven too far from the city where the mechanic who did the bad repairs is located. We would no longer trust him to do a good job to rectify the problem, anyways.

Thanks again!

Response from berenjena
1 question asked

One more quick question: in your opinion, if the problem is indeed incorrect valve adjustment, would it cause damage to the motor if we were to drive it 300 km before getting it adjusted? We need to drive that distance to get to a mechanic who can do the repair.

Response from berenjena
1 question asked

You're welcome.

Hope it is only a minor glitch that can be rectified easily.

Happy journeying and have a great day.

Answered by KHLow2008 (expert)
39,792 answers provided

Running a misfiring engine for that distance is not adviseable and it can cause the valve seats to overheat if it is the exhaust valve that is leaking.

Answered by KHLow2008 (expert)
39,792 answers provided