Going to replace ALL fuel hoses,anyone have a diagram please

Going to replace ALL fuel hoses,anyone have a diagram please

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maston

Original Poster:

872 posts

152 months

Tuesday 24th June 2014
quotequote all
Hi All,
As title, due to a split fuel hose, just wondered if anyone had a diagram please showing where all the fuel hoses from the tank lead to etc. ?

Got the bible but not very informative.

My wedge is a 390 SE 1987 if that helps.

Many thanks

Also what fuel hose is recommended please ?

Many thanks

Regards

Ian


mrzigazaga

18,557 posts

165 months

Tuesday 24th June 2014
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Hi Ian...Not sure who to recommend these days?...You will need some 51 ID fuel hose for in-between the tanks, Don't get the wire enforced stuff as it doesn't clamp down very well..Then you need a few metres of 5/8ths..(Ask Wooly350i).. and about 2M x 15mm ID for the tank to swirl pot and the piece above the 2" part in-between tanks...Who ever you get it from make sure you talk to them and confirm that its ok for modern fuels...I will see if i can find the company where i bought the large bore from...Cheers...Ziga

Edited by mrzigazaga on Tuesday 24th June 18:09

V8 Fettler

7,019 posts

132 months

Tuesday 24th June 2014
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For flexible hose, use SAE J30R9 or bio-hose. Not cheap, but better than fitting something that gets eaten by ethanol.

stevoj

798 posts

161 months

Tuesday 24th June 2014
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Interested in this also for future reference, i'm sure most of the stuff around the tanks/fuel pump has been done by TvR before i bought but would like to ensure the rest is OK especially the main run which i think runs under the driver sill and the bits under the wing.

Will the run in the sill be rubber? and why run fuel hose under the wing? surely a spot where damage can occur!

Toby Tram

415 posts

165 months

Tuesday 24th June 2014
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mrzigazaga said:
Hi Ian...Not sure who to recommend these days?...You will need some 51 ID fuel hose for in-between the tanks, Don't get the wire enforced stuff as it doesn't clamp down very well..Then you need a few metres of 5/8ths..(Ask Wooly350i).. and about 2M x 15mm ID for the tank to swirl pot and the piece above the 2" part in-between tanks...Who ever you get it from make sure you talk to them and confirm that its ok for modern fuels...I will see if i can find the company where i bought the large bore from...Cheers...Ziga

Edited by mrzigazaga on Tuesday 24th June 18:09
Ziga, is some of it really 5/8"? My main stuff (albeit only a lowly 350i) is 8mm I/D (5/16").

I am planning on doing mine in the not to distant. I think I am going to go down the line of copper with R9 to join the relevant bits.

Adi.

mrzigazaga

18,557 posts

165 months

Tuesday 24th June 2014
quotequote all
Toby Tram said:
Ziga, is some of it really 5/8"? My main stuff (albeit only a lowly 350i) is 8mm I/D (5/16").
Whoops...I make you right mate...Don't know why i thought it was 5/8"...Just checked it and it definitely is 5/16"..The same as the pump outlet and filter inlet....Cheers for pointing it out...Ziga

adam quantrill

11,538 posts

242 months

Wednesday 25th June 2014
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I replaced mine on the 350i with lorry cunifer brake pipe with 8mm I.D. - advantage is that it's rot-proof and effectively will last forever. The 400's use a rigid (copper?) pipe for the main feed. Short rubber hoses on each end to connect it.

I looked on the flea and it's hard to find so you might need a motor factor.

Toby Tram

415 posts

165 months

Wednesday 25th June 2014
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adam quantrill said:
The 400's use a rigid (copper?) pipe for the main feed.
Chances are, if its rigid, it's steel. Depends how rigid, but copper of that sort of diameter is ductile.

A.

V8 Fettler

7,019 posts

132 months

Wednesday 25th June 2014
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Doesn't ethanol react with copper?

adam quantrill

11,538 posts

242 months

Wednesday 25th June 2014
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Yes if you let ethanol vapour come near copper, the copper will react by taking your license away ;^(

Actually, the Jocks have been using copper for years with ethanol, and making quite a living out of it.... so I think it's pretty safe.

wooly350i

2,248 posts

208 months

Thursday 26th June 2014
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adam quantrill said:
Yes if you let ethanol vapour come near copper, the copper will react by taking your license away ;^(

Actually, the Jocks have been using copper for years with ethanol, and making quite a living out of it.... so I think it's pretty safe.
biggrin

mrzigazaga

18,557 posts

165 months

Thursday 26th June 2014
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Hi Ian..I have drawn this up for you and i think its correct..Im sure someone else could correct me if I'm wrong..Now I'm not 100% on some of the sizes as i know the hose to the swirl pot is bigger than 5/16 and think the balance pipe is bigger as well..Also I'm not sure if the return from bulkhead is where i have put it...Im going by what the 280 was, That should also be 5/16....

I have put the fuel filter pre-pump as this was what mine was...Hope this helps...Ziga


maston

Original Poster:

872 posts

152 months

Thursday 26th June 2014
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Mark,

I can't see it at the moment due to works internet policy but thank you mate, I will have a look this evening.
Do you recommend anyone doing this, not sure about Dan now :-( ?

Kind Regards
Ian

mrzigazaga

18,557 posts

165 months

Thursday 26th June 2014
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Hi Ian...Dan is fine..I think his little helper may of bodged my hub nut as every time dan has done anything like that i have never had any issues...Thing is with him is that you have to be exact with what you want..point out that you need ALL the pipe replaced, Wether he can get the 2" (51mm ID) I'm not sure but also tell him to call you if there are any issues..Ziga

V8 Fettler

7,019 posts

132 months

Thursday 26th June 2014
quotequote all
adam quantrill said:
Yes if you let ethanol vapour come near copper, the copper will react by taking your license away ;^(

Actually, the Jocks have been using copper for years with ethanol, and making quite a living out of it.... so I think it's pretty safe.
smile

The problems appear to arise when a car is left unused for a while, the ethanol separates from the petrol and then reacts with a variety of materials, probably including copper. Leave a classic car parked over winter with petrol/ethanol in the pipes, the ethanol appears to separate out and starts dissolving things. Another reason to use a car all the year round. A view:

http://www.nfahc.co.uk/pdf_files/ethanol/ethanol%2...

reb266

58 posts

121 months

Wednesday 5th February 2020
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Is tt possible to replace the hoses to bulkhead and coming from bulkhead with a copper hose like on the chimaera?

adam quantrill

11,538 posts

242 months

Wednesday 5th February 2020
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Yes as per my post above:

>> I replaced mine on the 350i with lorry cunifer brake pipe with 8mm I.D <<

It's much safer.

KKson

3,403 posts

125 months

Wednesday 5th February 2020
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reb266 said:
Is tt possible to replace the hoses to bulkhead and coming from bulkhead with a copper hose like on the chimaera?
yes just done mine on the SEAC project. 8mm kunifer front to back. I also slid the kunifer inside a thermal and fire insulation sleeve.

https://www.hilltop-products.co.uk/vidaflex-s360-8...

Grady

1,221 posts

260 months

Friday 7th February 2020
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mrzigazaga said:
Whoops...I make you right mate...Don't know why i thought it was 5/8"...Just checked it and it definitely is 5/16"..The same as the pump outlet and filter inlet....Cheers for pointing it out...Ziga
Because we all have been posting that coming off the tanks it's "5/8" which is a marine grade" for years. I guess we have been wrong?

KelvinatorNZ

634 posts

70 months

Friday 7th February 2020
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Having just done my early Tasmin, it's 100% 5/8" off the tanks but I don't have a swirl pot