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Injector Bleed-Off Pipes
Posted: Sun Jun 06, 2010 8:43 pm
by russelm
Hi all, yet another question.
As part of my re-build, the engine is being fully stripped including paint being removed and when doing this to the bleed off pipes, I found this:
So, the question is, whats the best approach, remove the fittings (they look to be soldered rather than brazed) and replace the pipe with copper brake pipe?
Also, here's a little pic of my cracked head (replacement sourced from Agriline)

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Posted: Sun Jun 06, 2010 9:16 pm
by russelm
Well, they are definately soldered!
A minute or so with the blow torch resulted in a nicely detached fitting and standard copper brake pipe is the same outside diameter (internal is slightly smaller but I suspect that this wont be an issue).
Posted: Sun Jun 06, 2010 9:20 pm
by henk
Hello Russel,
You are right. It's soldered. You could solve it like you say, but the part is new to buy for the major these day's. About 25 to 30 euros. Don't know if theres one for the Dexta.

Posted: Sun Jun 06, 2010 9:32 pm
by russelm
Thanks Henk
I managed to find them for the Fergie but not specificaly for the Dexta (I suspect they will fit).
Think I may well go the copper brake pipe route as thats effectively a 'free' fix for me.
Posted: Sun Jun 06, 2010 10:48 pm
by Jerry Coles
Hi Russelm
You have found the problem and identified a 'fix' but what was the cause?
What is routed in that area? Wiring or something, that what you must find to prevent it happening again.
Regards
Jerry
Posted: Sun Jun 06, 2010 11:53 pm
by Bensdexta
russelm wrote:I managed to find them for the Fergie but not specificaly for the Dexta (I suspect they will fit).
That seems to be the only fuel pipe that Agriline don't advertise on their website.
Malcolm Hipperson may have a 2nd hand one. I got a rear leak off pipe from him.
All the best,
Posted: Mon Jun 07, 2010 6:34 am
by Tubal Cain
The damage to the pipe looks as if it was caused by corrosion. If it had been chafing on another pipe or wire then the pitting would be smooth and bright.
Using a slightly smaller bore replacement pipe shouldn't cause any problems, as the amount of leakoff should be minimal.
Gerald
Posted: Mon Jun 07, 2010 8:11 am
by russelm
Jerry Coles wrote:Hi Russelm
You have found the problem and identified a 'fix' but what was the cause?
What is routed in that area? Wiring or something, that what you must find to prevent it happening again.
Regards
Jerry
Hi Jerry
Pretty sure its corrosion as other areas of the pipe are also pitted (although under the removed paint).
So, brake pipe repair it is, I will post a picture of the finished item.
Posted: Fri Jun 11, 2010 10:43 am
by russelm
Ok, all sorted.
On to the next job!
Posted: Fri Jun 11, 2010 10:09 pm
by pjjms
Nice job,
Good to see a part being repaired back to new standard rather then being replaced. Becoming a lost art.