Join Date: Jul 2008
Thanked 46 Times in 44 Posts
Rep Power: 9
A number of 3YM30's have had overheating problems due to undersized heat exchangers and a smaller raw water pump. Yanmar is aware of the issue and have replaced a number of exchangers free of charge. These issues have been showing up around the 150 hour mark on engines with serial numbers lower than 6000
The fix is to install a 66 tube heat exchanger rather than the original 35 tube unit an use a larger raw water pump.
Be the man Sharon thinks I am - wg
I can do that
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Be the master of your own disaster - wg
If you're not laughing, you're not doing it right. - wg
if you can live with the consequences, go for it. - wg
I yam what I yam an' thats all that I yam. - Popeye
Last edited by boatpoker; 01-01-2010 at 06:53 PM.