Fuel rail repair
Discussion
Managed to bend the threaded end of the fuel rail over on my Ls2, which as resulted in a leak from around the base of the compression fixing point. See attached!.
Question is what are my options for fixing it. Are there any magic sealants I can use?. Or is a trip to a local engineering shop who specialise in stainless, im not even sure what kind of weld it is!.
Cheers
Steve
Question is what are my options for fixing it. Are there any magic sealants I can use?. Or is a trip to a local engineering shop who specialise in stainless, im not even sure what kind of weld it is!.
Cheers
Steve
I very much doubt it is stainless.
More likely mild steel with copper then nickle plating.
Could also be made from copper.
(You can see the copper plating or bare copper in the fixing bracket).
Silver soldering is the repair to use but requires the correct use of heat, flux and silver solder wire. More heat and more localized than is possible with a DIY blow torch.
Steve
More likely mild steel with copper then nickle plating.
Could also be made from copper.
(You can see the copper plating or bare copper in the fixing bracket).
Silver soldering is the repair to use but requires the correct use of heat, flux and silver solder wire. More heat and more localized than is possible with a DIY blow torch.
Steve
I did exactly the same thing 18 months ago, welder friend of friend £20.
After markets or secondhand are not so cheap in the UK. I would have loved to replace the standard rail but there is always a budget.
Dave
Did a quick search on ebay uk and found this, no name to it though.
http://www.ebay.co.uk/itm/Professional-Products-co...
After markets or secondhand are not so cheap in the UK. I would have loved to replace the standard rail but there is always a budget.
Dave
Did a quick search on ebay uk and found this, no name to it though.
http://www.ebay.co.uk/itm/Professional-Products-co...
Edited by DHGTR on Sunday 22 January 10:34
Edited by DHGTR on Sunday 22 January 10:35
ROWDYRENAULT said:
after market rails and call it a day. do you really want to find out if your repair worked by the large flame following you down the street. Lee
The last aftermarket fuel rail a saw on one of those did not hold the rail secure and it blew off. Fortunately we were only cranking the engine at the time so no flames but a huge amount of fuel everywhere.So just because it is aftermarket does not make it any safer. It was a well known make as well.
Steve
Had a dig around e bay the only rail I found was in oz so that seems a bit of a drag.
Anyway took the fuel rail of the car so I could have a good look at it, it seems the leak was very tight to the lug, no fracture was evident . Give it a good clean, dabbed a little flux around it and applied heat and silver solder. Seems to have done the trick. Put the car back together no leaks stationary and then took it for a ten minute run and also stood it outside the house and let it get up 100 plus and let the fans run and still no leak.
Hopefully problem solved.
Note to self- get a fire extinguisher.
Anyway took the fuel rail of the car so I could have a good look at it, it seems the leak was very tight to the lug, no fracture was evident . Give it a good clean, dabbed a little flux around it and applied heat and silver solder. Seems to have done the trick. Put the car back together no leaks stationary and then took it for a ten minute run and also stood it outside the house and let it get up 100 plus and let the fans run and still no leak.
Hopefully problem solved.
Note to self- get a fire extinguisher.
TangoGTR said:
sone said:
Note to self- get a fire extinguisher.
Note to self - don't follow Steve ! ...... what am I saying, he's always way way way behind anyway 
Good job with the rail repair..... have silver soldered lots of bits n bobs with a blow lamp... just takes a bit of good prep (clean) and patience with a conservative flame.
Put a flange of M3 nuts on a two stroke pipe a few days back... great stuff for DIY repairs on all sorts and held many pressure vessels together for years (steam boilers etc).
Put a flange of M3 nuts on a two stroke pipe a few days back... great stuff for DIY repairs on all sorts and held many pressure vessels together for years (steam boilers etc).
Steve_D said:
The last aftermarket fuel rail a saw on one of those did not hold the rail secure and it blew off. Fortunately we were only cranking the engine at the time so no flames but a huge amount of fuel everywhere.
So just because it is aftermarket does not make it any safer. It was a well known make as well.
Steve
Nothing wrong with stock rails as Steve says....So just because it is aftermarket does not make it any safer. It was a well known make as well.
Steve
sone said:
Received a nice large parcel with Ls7 fuel rails in it this morning. So a big thankyou to Jonathan at Macgracing.
Very kind thankyou, I will make it my business to buy you a drink when I see you racing. (obviously none alcholic)
No problemo! Happy to help you get back on the road.Very kind thankyou, I will make it my business to buy you a drink when I see you racing. (obviously none alcholic)
Jonny
P.S.: Mine's a Pepsi Max :-)
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