Any quick ways of finding out if your oil cooler has a leak ?? When I took the engine apart there was. Oil EVERYWHERE. So now I'm not sure. Is it as easy as pouring water into it and seeing what happens or is there a better way ??

Also. If it turns out that I do need a new cooler will the 2000cc bus ones work?? Are they the same ??

Thanks

Pressure test with air. Under water like a bike tube. Air cooled specialist have a fixture made for this.