1990 cabby fuel leak
Posted
#1582823
(In Topic #214814)
Merchandise Manager
Thoughts please
Posted
Settling In
Could be that once line gets de-pressurized due to leak the leak stops
Try turning on ignition on to check lines under fuel pump pressure
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Merchandise Manager
Posted
Newbie
Posted
Old Timer
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Posted
Merchandise Manager
Posted
Old Timer
Hope this helps.
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Posted
Merchandise Manager
So it looks like I need a new tank then, anybody know how difficult this is to change over. I really want to do all the work on this car myself.
While I'm at it I might as well get all the new parts powder coated
Posted
Old Timer
You have to drop the rear axle, watch you don't snap the bolts. You have to remove the brake flexi hoses to do this as well. I left my handbrake cables connected as didn't need to take the axle right out. Exhaust back box needs to come off. Disconnect the wires to the sender etc under the rear seat. Fuel pump etc needs to be disconnected (if it's fuel injected) drain the tank and undo the straps.
Allow at least a day, it might be worth cleaning backthe underside above the tank and treating it with something.
Mars red 1.8 GTI tintop now MOT'd and on the road!
http://vwgolfmk1.org.uk/forum/index.php?page=topicview&id=projects%2Fyour-mk1-golfs_2%2Fwent-to-look-at-a-golf&kfs79=150
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Local Hero
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Posted
Old Timer
Posted
Local Hero
sporttrucker said
I doubt it is the tank leaking from the top, more likely would be the sender unit o ring seal is leaking, it can be checked through the access panel under the rear seat
I agree, take the base of the back seat out, undo the 3 screws holding the black cover on and remove, you will be able to see the top of the fuel tank, check for any leaks and check the rubber fuel lines.
Check simple things 1st before pulling out the fuel tank.
1988 Mk1 Golf GTi Cabriolet 1.8cc DX, K-jet. Daily drive. 317,000 miles and counting
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
Posted
Old Timer
1990 cabby fuel leak
mark1gls said
sporttrucker said
I doubt it is the tank leaking from the top, more likely would be the sender unit o ring seal is leaking, it can be checked through the access panel under the rear seat
I agree, take the base of the back seat out, undo the 3 screws holding the black cover on and remove, you will be able to see the top of the fuel tank, check for any leaks and check the rubber fuel lines.
Check simple things 1st before pulling out the fuel tank.
I have to agree as well that itā€™s unlikely to leak from the top although Iā€™d have thought the dripping fuel would be less localised if it was the sender. I would definitely check the sender seal first before dropping the tank.
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Mars red 1.8 GTI tintop now MOT'd and on the road!
http://vwgolfmk1.org.uk/forum/index.php?page=topicview&id=projects%2Fyour-mk1-golfs_2%2Fwent-to-look-at-a-golf&kfs79=150
http://vwgolfmk1.org.uk/forum/index.php?page=topicview&id=projects%2Fyour-mk1-golfs_2%2Fwent-to-look-at-a-golf&kfs79=150
Posted
Merchandise Manager
Posted
Merchandise Manager
Posted
Old Timer
1990 cabby fuel leak
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Mars red 1.8 GTI tintop now MOT'd and on the road!
http://vwgolfmk1.org.uk/forum/index.php?page=topicview&id=projects%2Fyour-mk1-golfs_2%2Fwent-to-look-at-a-golf&kfs79=150
http://vwgolfmk1.org.uk/forum/index.php?page=topicview&id=projects%2Fyour-mk1-golfs_2%2Fwent-to-look-at-a-golf&kfs79=150
Posted
Merchandise Manager
Posted
Local Hero
Unfortunately you have the plastic type sender which can be tricky to remove as you can't hit it with a bit of metal and a hammer. You need to make some sort of cross shaped key to fit into the 4 cut out, I've seen some made from wood, it's so you can turn the sender as it's like a bayonet fitting so only need to turn about 30 degrees to be lose.
They other problem you have is someone has used the wrong type of jubilee clip as it's best to use fuel hose jubilee clips as they squash the rubber hose all the way around when tightened them up, jubilee clips just tighten in 1 place. I would get 2 clips and replace both as the other clip is a use once clip and one it's removed it's scrap.
To remove the sender remove electrical connector, remove fuel hose but have the windows open and a cloth handy has petrol will come out, be very careful not to lose the hoses or connector down the hole by the tank as it's a nightmare to get them out again and worse case is remove the fuel tank to get to them!
1988 Mk1 Golf GTi Cabriolet 1.8cc DX, K-jet. Daily drive. 317,000 miles and counting
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
Posted
Merchandise Manager
Is this the type of clip I should be getting and would you recommend me jus replacing the fuel sender unit?
Posted
Local Hero
Shop around as 1st link I found. Most motor factors will sell them or you can pay over the top prices at Halfords if you don't have a local independent motor factors. http://www.ebay.co.uk/itm/ASH-W4-Stainless-Steel-Mini-Metal-Nut-Bolt-Fuel-Hose-Clips-Petrol-Pipe-Clamps/201979592601?_trkparms=aid%3D555019%26algo%3DPL.BANDIT%26ao%3D1%26asc%3D20151016114640%26meid%3D7254bb073b084a688626a594e9662cf2%26pid%3D100507%26rk%3D1%26rkt%3D1%26&_trksid=p2045573.c100507.m3226
I would keep your fuel sender as they are expensive just be carful twisting it as the plastic can break.
I cant find an image but even a U shaped bit of wood may work, they are not that tight once they start to move, worse case but you may break bits of plastic is use a hard bit of wood and hammer to turn the sender but not the best way.
A bit like fig 8 in this link..
Audi A4 1.8T Volkswagen Fuel Pump Replacement | Golf, Jetta, Passat & Beetle | Pelican Parts DIY Maintenance Article
Last edit: by mark1gls
1988 Mk1 Golf GTi Cabriolet 1.8cc DX, K-jet. Daily drive. 317,000 miles and counting
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
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