Nanni, Kubota, Three-Cylinder Diesel Won't Rev in Gear

[daddle]

Originally Posted by surfmachine

Ahoy...put the plunger needle in back to front

Funny. Sometimes it's important which way you put the parts in. Who woulda thunk? Cheers!

[surfmachine]

Yeah, I was trusting the "experts" to put the plunger back together correctly. Anyway, it's all water under the bridge now, or in the boat?
Cheers from Sibolga,

[robertadcock]

go overboard check the prop and shaft isnt fouled

[surfmachine]

Thanks robert, wasn't that, it was a faulty cambox fuel injection pump.
Keith

[bdbcat]

Quick question:

How did you get past the tamper proof bolts?

On my Northern lights generator, they were 5 (five) flat bolts. Much aggravation trying to build a 5 flat wrench in the bush. Finally ground them off and replaced with plain old 6 flat bolts.

Also, a note. I have had recurrent failures of the 6 "delivery valve holder" nitrile o-rings. They seem to last about 3000 hours, then start to seep lots of fuel. When I take them out, they are almost crunchy.... I suspect low-sulpher diesel is the culprit.

Replacements are crazy expensive. US$15 apiece from Alaska diesel. Best price I found was from a tractor dealer, still US$10 apiece. Takes me 4 hours to replace, and I haven't dropped a spring yet

I carry spares now.

Well done on the field repair!

Dave

[surfmachine]

Ahoy Dave, the nanni has allan key head type bolts, really easy to take it out, dont touch the goveber. Motor never made it past 1500 hrs, so no O ring problems!
Keith.