Daugter and husband just came round, with Diesel pi$$ing out of the return pipe on his Astra Mk4, its a 12mm pipe which opens up to 20mm for the push on fitting, pipe had split on the flare.

To keep it on the road short term, I spun a 12 - 20mm reducer up, cut the split bit of pipe off, but, the only pipe I had in 20mm bore, was heater hose, question is, how unfriendly is diesel to 'rubber' heater type hose?

I know its temporary till I can get some 20mm fuel hose, just wondering how temporary it needs to be?

Cheers.
Pete.

[Edited on 4/7/10 by r1_pete]

quote:

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Originally posted by r1_pete
Daugter and husband just came round, with Diesel pi$$ing out of the return pipe on his Astra Mk4, its a 12mm pipe which opens up to 20mm for the push on fitting, pipe had split on the flare.

To keep it on the road short term, I spun a 12 - 20mm reducer up, cut the split bit of pipe off, but, the only pipe I had in 20mm bore, was heater hose, question is, how unfriendly is diesel to 'rubber' heater type hose?

I know its temporary till I can get some 20mm fuel hose, just wondering how temporary it needs to be?

Cheers.
Pete.

[Edited on 4/7/10 by r1_pete]

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Quick search...

http://answers.yahoo.com/question/index?qid=20100311203954AAHyKAo

Haven't there been complaints about petrol hose dissolving at a random point? Sounds like a "get some asap, but no need to get it RIGHT NOW!" case

Depends what the heater hose is made from, if it is nitrile rubber it will be fine with diesel (not with unleaded petrol tho) but I think most heater hose will be EPDM which will swell and go soft fairly quickly.

not sure without seeing hose spec, but after youve replaced with proper stuff change the fuel filter after a few hudnred miles. just in case its gummed up with dissolved gloopey rubber.