Jump to content

Rusty Petrol Pipes - What's best.


Recommended Posts

As the title says, I have rusty petrol pipes on my 110 v8 from about half way back. What is the best / cost effective thing to replace them with? Distance is about 2m for two pipes (flow and return).

I have tried to find rubber fuel pipe and can't get 7mm (which is apparently the size I need) - also not sure how I would attach this to the chassis rail. I have also read about 8mm microbore copper central heating pipe :o . So, over to you guys, I am sure that this is a common issue and there must be some ingenious solutions.

Thanks.

Link to comment
Share on other sites

As the title says, I have rusty petrol pipes on my 110 v8 from about half way back. What is the best / cost effective thing to replace them with? Distance is about 2m for two pipes (flow and return).

I have tried to find rubber fuel pipe and can't get 7mm (which is apparently the size I need) - also not sure how I would attach this to the chassis rail. I have also read about 8mm microbore copper central heating pipe :o . So, over to you guys, I am sure that this is a common issue and there must be some ingenious solutions.

Thanks.

FridgeFreezer recommended replacing the whole lot with rubber fuel hose - something which I am definitely going to do... Afterall, if the back is causing concern how long before the front bit goes and squirts it all over the exhaust or somesuch? I am looking for a cheap supply of suitable tube now - I'll let you know if I find some.

Roger

Link to comment
Share on other sites

I ran the whole lot in micro bore central heating pipe on the special 10 years ago, and all fine. ran it p clipped down the chassis, and finished in rubber.

Recently gone from V8 to TDI, and all fine. no signs of either corrosion, or damage.

Hope that helps.

Cheers

Oz

Link to comment
Share on other sites

I looked into replacing with rubber hose, but the (trustworthy) guy at the local hose specialists told me that i have 2 choices.

Normal 'rubber' fuel hose is only rated for 3-5 years with petrol.

Viton hose is rated for 10 years+ but costs 25 quid/ metre !!

I was of the opinion that orginal steel replacements would be more cost effective.

Ozboy - what was the spec / size / material of the microbore you used?

Link to comment
Share on other sites

Rubber fuel hose, 8mm bore should work with a strong petrol hose clip, or go down a size and squeeze 6mm on although that sounds a bit small to me, are you sure your connectors are 7mm?

If you're on carbs there's no real pressure there (~6psi max). Hyphose sell fuel hose, it's a couple of quid per metre, fit and forget from front to back. I did my 109, dad's RR and will be doing my RR when I get round to it. If you're lazy (and I am) you can cable-tie it to the old metal fuel lines. Use black ties, the clear/natural ones deteriorate in sunlight (UV) and fall off.

Copper pipe (esp. central heating pipe) I would be worried it would fatigue as it's not designed to be rattled around on a LR, if you must use copper pipe use copper or cunifer BRAKE pipe, at least that's automotive :unsure:

Proper fuel hose clip:

472-1.jpg

Link to comment
Share on other sites

Rubber fuel hose, 8mm bore should work with a strong petrol hose clip, or go down a size and squeeze 6mm on although that sounds a bit small to me, are you sure your connectors are 7mm?

If you're on carbs there's no real pressure there (~6psi max). Hyphose sell fuel hose, it's a couple of quid per metre, fit and forget from front to back. I did my 109, dad's RR and will be doing my RR when I get round to it. If you're lazy (and I am) you can cable-tie it to the old metal fuel lines. Use black ties, the clear/natural ones deteriorate in sunlight (UV) and fall off.

Copper pipe (esp. central heating pipe) I would be worried it would fatigue as it's not designed to be rattled around on a LR, if you must use copper pipe use copper or cunifer BRAKE pipe, at least that's automotive :unsure:

Proper fuel hose clip:

472-1.jpg

This stuff: http://www.burlen.co.uk/partDetail.aspx?partID=43559 is about £3.50 per metre and looks pretty good to me.. I agree about the size, I don't think I would go below the 8mm bore since a long length of 6mm would cause a lot more pressure reduction when flowing.. (it's only 56% of the cross sectional area of 8mm bore) and would probably give the pump a harder time as a result.

FridgeFreezer - you must have interesting times with your RR if you worry about getting sunlight on cable ties on your chassis :D

Cheers

Roger

Link to comment
Share on other sites

From memory i used 8mm, as i said its done 10 years or so, and no issues. At the end of the day u pays your money and takes your choice. It ran with a Facet for the fist 8 years. I also used the proper clips in the pics to avoid flat spotting with the usual jubilee clips etc.

Hope it helps.

Oz

Link to comment
Share on other sites

Great, thanks guys. I got the 7mm size from a cross section of one of the current pipes. Although, having taken it to to a number of Motor Factors etc. opinion seemed to vary as to the size and of course some thought it was 1/4". 7mm looked the closest at a Vauxhall stealer who wanted £8.60 +vat per metre!!!

Does anyone know the official size of the rubber tube on the fuel system of a V8 used to connect the rusty pipes :lol:

Link to comment
Share on other sites

Great, thanks guys. I got the 7mm size from a cross section of one of the current pipes. Although, having taken it to to a number of Motor Factors etc. opinion seemed to vary as to the size and of course some thought it was 1/4". 7mm looked the closest at a Vauxhall stealer who wanted £8.60 +vat per metre!!!

Does anyone know the official size of the rubber tube on the fuel system of a V8 used to connect the rusty pipes :lol:

8mm ID i think.

Link to comment
Share on other sites

Great, thanks guys. I got the 7mm size from a cross section of one of the current pipes. Although, having taken it to to a number of Motor Factors etc. opinion seemed to vary as to the size and of course some thought it was 1/4". 7mm looked the closest at a Vauxhall stealer who wanted £8.60 +vat per metre!!!

Does anyone know the official size of the rubber tube on the fuel system of a V8 used to connect the rusty pipes :lol:

cant you just replace the rusty pipe with OE steel pipes. theyve lasted 15-20 years as they were. when you put them on smear them in a thin coating of grease or vaseline. I always clean and smear my brakpipes and never had a rusty one yet. would seem to be the easiest answer but there again if your BORED!!!!!!!!!!!!!

Link to comment
Share on other sites

Err I pulled mine, took some sand paper to them and then sprayed them (red).

And strangely they were rusty (and it was proper rust) only from half way back too. Oh and I wasn't excercising any great finesse in removing them too and they didn't mind. Basically just popped all the little clips out of the chassis rail and then pulled hard...

Unless you have reason to believe they're porous they may be plenty salvagable?

Link to comment
Share on other sites

cant you just replace the rusty pipe with OE steel pipes. theyve lasted 15-20 years as they were. when you put them on smear them in a thin coating of grease or vaseline. I always clean and smear my brakpipes and never had a rusty one yet. would seem to be the easiest answer but there again if your BORED!!!!!!!!!!!!!

Yep, but original replacements would be the thick end of £60, so 4m of rubber tube at £15 plus a few clips has its attractions and probably easier to fit!!

Certainly not bored... I have a Landrover :)

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy