Yanmar 1GM10 - "That" oil pipe

Topcat47

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The lub oil pipes under the engine are renown for causing problems and, having my engine out at the moment, I've had a good look at mine. The longer of the two is badly corroded at the kink. Is there a source of Cupro-nickel or perhaps a braided rubber hose that'll do the job? I'm reluctant to replace it with another steel one.
 

agurney

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I wasn't too concerned when my pipes failed after more than ten years, but the replacements were starting to corrode after only one season, so I had a hunt around for an alternative.

I took the two front pipes (the ones catch the drips from the water pump) to my local "hose doctor" and they made up a couple of flexible hoses with swaged banjo fittings that I fitted last weekend. They asked a few pertinent questions about what they were to be used for, and where, so I assume the hose is up to the job (SAE100R1AT). Time will tell.

Cost for the two pipes was £36. They didn't want payment until they had been fitted and we were happy with them. They did fit, but in hindsight I should have had longer ones made to make fitting easier.
 
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steve28

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we had one made up localy, they reused the banjo ends and recrimped new rubber hose on, make sure you get slighty longer to allow for the pipe diameter and the bends.


Steve
 

Eygthene

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I took the leaking steel oil pipe from my 1GM10 to my local diesel service centre and they used the banjos and made up a replacement with cupro-nickel pipe as used for brake pipes for £25. The steel replacement from Yanmar was over £50.
 

Topcat47

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Yanmar 1GM10 "That" oil pipe

Thanks, I think I'll try to get the old pipes replicated in cupro-nickel, at least I won't have to worry about them again. I'll ask Panda in Fareham when Itake the injector and pump to them for servicing.
 

pagoda

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Thanks, I think I'll try to get the old pipes replicated in cupro-nickel, at least I won't have to worry about them again. I'll ask Panda in Fareham when Itake the injector and pump to them for servicing.

Not trying to be picky, but I suspect the pipe being discussed is probably Cunifer. It is a Copper alloy with a small amount of Nickel- used for replacement brake pipe work. Easy to braze or solder and fairly tough. It copes well with exposure under cars so ought to survive a marine environment fairy well. Harder to work than plain copper.
I've used it a fair bit over the years.

regards, Graeme
 
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