VR sounds like a railway train!!!

[marksman87]

Quote:
Originally Posted by hako
Thats a classic sign of worn main and/or bigend bearings usually found in a high mileage engine. When the oil is cold and thick it basically fills and cushions the play in the bearings but once the engine and oil warms up and thins it no longer can cushion the bearings and then they rattle and the oil light comes on due low pressure. Cheapest fix is to simply go for a thicker oil otherwise it will costt $$$$ for a full overhaul.

Just got a VR Commodore, there is a loud knock sound initially started quiet as the owner told me. I got it home hoping for a tappet repair and my old man came out and said he thinks straight up a Big End issue. How can I repair this easiest and cheapest. He reconed either a crank or bearings, only seems to be on one stroke of the engine does increase with engine revs. As I only just got the car don't know what oil they used etc. going to do a full lubricant change, so suggestions to what oil etc. to use willing for advice. 270,000k on the clock. drives smooth and maybe a little under power just due to the knock, hoping I can fix this. I've rebuild the top end of a VN Buick V6 but that's the extent I have done never dug deeper as my VN never had any other issues.

[moff_man]

as much as i hate shell oil they do make a 25w 60, thats the thickest oil ive seen bar racing oil.

[social]

doesnt sound too good man, after it starts knocking, its over you either rebuild the engine or u buy a new one simple as that. engine oil wont save u lol its too late...

[marksman87]

So even big end bearings won't fix the problem, I'll put a video up on youtube and put a link here so you can hear my train!!!