Slipping Transmission

[Troubadour52993]

I had my Hurth HBW 360A rebuilt in Nassau about six weeks ago. Just yesterday on a short run at low rpm I noticed it slipped a few times, then re-engaged. Is there any kind of "break in" or adjustment that anyone knows of? Right now I am fearing the worst and am planning on returning to Nassau as I don't want to head south and have it fail again when I need it.

[KEG]

Check your fluid level and check for leaks. Make sure it is full, check according to the instructions. Don't overfill. If it slips even a few times you can burn it up. Matthew

[Ram]

I had same thing happen to my 360a, it was water in the oil, from a pin hole leak in the cooler, the clutch was slipping, I believe there may be an adjustment- If you need parts I have one here I’m not using (Palm beach area ) they don’t make that gear anymore and parts are very hard to come by- also do not use synthetic oil, this will make it slip.Id be a little skeptical of the rebuild, as parts are near impossible to come by

[beneteau-500]

I agree with ram on possible cause of slipping i have the same box fitted to a 80hp perkins but i did a complete overhaul my box last yr and at the same time purchased a complete spare kit at the same time you can get all the parts you need from lancing marine in the uk (brighton) if you contact Mike Bellamy he can help you

[Troubadour52993]

To close this out: I decided to pull the trans and ship it to Nassau instead of going there. After originally saying there wasn't anything wrong, they finally consulted with ZF Hurth and replaced the cup springs and thrust washers. It's back in and feels strong now, so hopefully it will hold up a long time!

RE parts: looks like springs, clutch disks, seal kits are all readily available. Gears, bearings, not so much.

Thanks for the suggestions and help, all!