Fuel Sender Sealant.

Mollers · 25 July 2013, 12:21

What's the best petrol resistant mastic goo to seal a sender with? The red muck I've used aint doing jack.

Mollers · 25 July 2013, 12:25

I've just googled Blue Hylomar? Any thoughts? Come on guys, I'm launching this eve!

Pikey Dave · 25 July 2013, 12:38

Heldite is bombproof http://www.heldite.com/

Erin · 25 July 2013, 12:41

I've used blue Hylomar. Not designed for constant immersion IIRC, but never caused a problem on mine.

Mollers · 25 July 2013, 13:39

Cheers guys.

There was a hopeless thin gasket in there which had cracked and some semi liquid hermatite.

Made a 3mm insertion rubber gasket and sealed both sides with Hylomar. Looks proper, fingers crossed.

Nos4r2 · 25 July 2013, 14:29

Best check blue Hylomar isn't fuel soluble. I think it is.

If the gasket you made is ok, you won't need it anyway.

Mollers · 25 July 2013, 14:44

Quote:

Originally Posted by Nos4r2

Best check blue Hylomar isn't fuel soluble. I think it is.

If the gasket you made is ok, you won't need it anyway.

Does say petrol resistant on packets.

matt h · 25 July 2013, 14:57

i use wellseal for fuel related things for the old cars and hasnt let me down yet.

Nos4r2 · 25 July 2013, 15:17

Quote:

Originally Posted by Mollers

Does say petrol resistant on packets.

Might have changed it then.

Quote:

Originally Posted by matt h

i use wellseal for fuel related things for the old cars and hasnt let me down yet.

Thats what I use. Made by Stagg, lots of nasty chemicals in it. Finding it in kernow may be a bit hard though.

matt h · 25 July 2013, 15:22

yeh, does work tho,im having a quick look now for potential suppliers

01722 821000, give em a call. there must be a stockist in the land of pasties!!

Downhilldai · 25 July 2013, 15:33

As Nos says, your new rubber gasket should do the job on its own.

Red Hermetite is the sealant to use in a petrol environment.

island8 · 25 July 2013, 19:09

We used marine-tex, works great

Mollers · 25 July 2013, 19:23

Jim has rocked up with the same problem!!

Now pulling his sender out and resealing it.

Downhilldai · 25 July 2013, 19:44

Quote:

Originally Posted by Mollers

Jim has rocked up with the same problem!!

Now pulling his sender out and resealing it.

It wouldn't be a spin to the Scillies if Jim didn't have 5 gallons of petrol slopping around the deck.

Erin · 26 July 2013, 08:34

I replaced my rubber sender gasket with a cork/nitrile or cork/butyl (can't remember which) and it has been fine. No selant needed. The rubber one that came on La Frette was mishapen and pretty poor quality. The blue Hylomar was for the fuel barbs on the filter.

Sixy_the_red · 26 July 2013, 09:11

+2 for wellseal. Anything that smells that bad and is that sticky and brown must be good!

Seriously, buy a tube and you will never use Hylomar again. Excellent gap filling properties - if I remember correctly, applied properly to both faces it will take up something like 0.7mm! Also, if used in an engine it will melt slightly every time it's run and re-make the joint, but is completely immiscible in oil. If you spill or over-apply simply wipe with thinners.

mick · 26 July 2013, 20:40

Quote:

Originally Posted by Pikey Dave

Heldite is bombproof http://www.heldite.com/

+1 for Heldite

Puffin · 17 August 2013, 18:05

Quote:

Originally Posted by Mollers

Jim has rocked up with the same problem!!

Now pulling his sender out and resealing it.

I am just about to fit a new fuel sender to the plastic tank on my Humber, just wondering what you finally used and how it went??

Paul