petrol expansion tank removal

Post by **joshb** » 04 Feb 2008, 20:03

any tips on taking them off and back on again greatly appreciated,, thanks

Post by **Ian Hulley** » 04 Feb 2008, 20:09

Unless you're van's in very good nick underneath be very afraid, cos the bolts may be now part of the wheel arch

AND it's next to the seatbelt bottom mount

Ian.

Post by **joshb** » 04 Feb 2008, 22:11

so how many bolts hold the tank on?

Post by **VWCamperfan** » 04 Feb 2008, 22:25

I may be wrong but i think its two bolts. Pretty sure thats the setup on mine anyway.

Post by **Mocki** » 04 Feb 2008, 22:32

yep, two each side........
why you taking them off, welding access?

Post by **joshb** » 04 Feb 2008, 22:36

no welding,, i just wanted to clean them up, looking at the etka diagrams there seems to be a float valve or sometthing on the top and a 3rd pipe from it, I get a petrol smell and i think i have done most of the other usual suspects,, i take it removal may be a bad idea...?

Post by **Mocki** » 04 Feb 2008, 22:41

you shouldnt need to take them off to solve the smell prob, itsll be one of the hoses perished, or all of them....... just beware they hide a lot of crap, which maywell be housing a squad of tin worm

Post by **joshb** » 04 Feb 2008, 22:47

cheers Mocki, i will take a tentative look. fingers crossed!

Post by **R0B** » 04 Feb 2008, 22:49

i just hope its not the rusty hole on top of tank syndrome.

I get a petrol smell

Post by **joshb** » 04 Feb 2008, 22:53

me too! i will have a good look if its not too rainy!

Post by **87wedgie** » 05 Feb 2008, 19:47

I've looked and not touched, yet, for all the reasons the others state.

I had a strong petrol smell when the tanks full. I decided to change the rubber coller round the filler pipe as it looked old. That reduced the smell considerably. My next port of call is to replace the hoses to the expansion tanks to hopefully effect a full cure. I've been told to take great care as the expansion bottles 'nipples' get brittle (bless!).
Bob

Post by **joshb** » 06 Feb 2008, 16:57

i jet washed around my tanks, looks solid enough lots of cac trapped around them, i didnt take them off in the end as i could only see 1 nut near the seatbelt bolt, so gawd knows where the other nut/bolt is, I did buy some 5.5mm hose from my local motor factor and changed the hoese from the tanks ,

Post by **Rozzo** » 07 Feb 2008, 07:01

theres only one on each m8 and they push into a recess at the back

Post by **joshb** » 07 Feb 2008, 08:15

hehe, cheers Rozzo, that'l be why i only found 1