Fuel hoses again!

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Fuel hoses again!

Post by hermeticist » Sat Jul 06, 2019 12:50 am

Sorry about this but after running new hoses down to the rear of the TI I decided to remove the boot to inspect the tank, repaint any bits and fit the new lines.

A hose, which I think is a breather, had completely rotted into many short sections:
20190705_223230.jpg
20190705_223230.jpg (240.86 KiB) Viewed 623 times
I think it fitted on the rear of this connector piece (which is in fact a T piece (the clear connector)?

The hoses across the top of the tank were much larger than I thought they'd be but look in reasonably good condition. Do these normally require replacing and, if so, with what size and specification?
20190705_223120.jpg
20190705_223120.jpg (249.27 KiB) Viewed 623 times
The bottom hose, which I suspect is the tank return, definitely required replacing as it is badly cracked:
20190705_223201.jpg
20190705_223201.jpg (235.43 KiB) Viewed 623 times
I'm also considering replacing and moving the fuel pump, it looks to be attached by two tiny bolts, is this correct? Sorry, I couldn't manage to photograph this.

I couldn't see, due to the failing light, where the hose exits that goes from tank to fuel pump, could you give me any directions in locating it? I know that one piece requires cutting because the connector is fragile.

Apologies as all photos seem to be upside down!

Many thanks for any help.



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Fuel hoses again!

Post by scimjim » Sat Jul 06, 2019 6:48 am

The hose that's rotted into short pieces does go to that T connector and should have a rollover valve on the other end (you can just see the end of the valve in your second picture screwed to the boot hinge beam).

the feed for the pump will be underneath the tank and the return as you say is the one in your last picture.

It's the earlier tanks that you have to be careful with the connectors because they attach to the plastic fuel gauge sender unit - your sender won't have any fuel connections.

PS photo orientation fixed :D


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Fuel hoses again!

Post by hermeticist » Sat Jul 06, 2019 7:20 am

Thank you Jim!



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Fuel hoses again!

Post by hermeticist » Sat Jul 06, 2019 7:24 am

So the replacement breather connects from the T piece to the rollover valve... Is there another one, or maybe a drain, because one end of a pipe was cable tied pointing downwards near the diff?



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Post by scimjim » Sat Jul 06, 2019 7:51 am

could that be the diff breather? should go into the chassis through a small grommet on the RH side.


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Fuel hoses again!

Post by hermeticist » Sat Jul 06, 2019 8:00 am

Thanks Jim, I'll take a look. Do you know if the large hoses along the top of the tank usually require replacement? These ones seem ok...



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Fuel hoses again!

Post by td99 » Sat Jul 06, 2019 8:00 am

hermeticist wrote:
Sat Jul 06, 2019 7:24 am
So the replacement breather connects from the T piece to the rollover valve... Is there another one, or maybe a drain, because one end of a pipe was cable tied pointing downwards near the diff?
That would be from the other side of the rollover valve (top) which then loops down to by the diff( and it's end is is open).


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Post by hermeticist » Sat Jul 06, 2019 8:04 am

Thank you Trevor, I suspect that may be correct as there were lots of bits of tubing...



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Post by Roger Pennington » Mon Jul 08, 2019 2:01 pm

Yes, I'd agree with Trevor, that's how mine was plumbed. I believe it's to vent the fumes that escape as the tank warms up, into the airflow rather than inside the body.


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Fuel hoses again!

Post by hermeticist » Mon Jul 08, 2019 2:34 pm

Thank you Roger, that makes good sense!



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Fuel hoses again!

Post by binlicker » Mon Jul 08, 2019 3:58 pm

HI, I've just replaced the said pipes. I ordered 1mtr 12mmx18mm, 1mtr 8mm x 13mm, 1mtr 6mm x 11mm, which came to about £12. As said before the 8x13 pipe fits on the top of the one way valve you can just see it in your second pic with a small piece of tube still attached [Just undo the 2 self tappers] this runs down the front of the tank to vent just below the car. The 12x18 tube is as your first pic shows it and would be foolish not to replace it. The 6x11 tube runs from the white tee piece to the bottom of the one way valve and that's about it. Mine has a feed and return half way down the tank, one being 6mm x 11mm and the other 8mm x 13mm hope this helps.



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Fuel hoses again!

Post by AJL Electronics » Mon Jul 08, 2019 5:12 pm

binlicker wrote:
Mon Jul 08, 2019 3:58 pm
HI, I've just replaced the said pipes. I ordered 1mtr 12mmx18mm, 1mtr 8mm x 13mm, 1mtr 6mm x 11mm, which came to about £12.
Each I hope?


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Fuel hoses again!

Post by hermeticist » Mon Jul 08, 2019 5:13 pm

8mm internal and 13mm OD(?) and the 6/11 OD I have, I may as well replace the top hose and I shall endeavour to find a supplier of the 18mm (although it does seem in good condition). That is really helpful, thank you!



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