David Jenkins
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 posted on 25/8/04 at 09:17 PM |
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Fuel tank sender
I couldn't find a place to post this, so I put it here - well, it's connected to electrical thingies!
I've got a CA/Smiths fuel tank sender. This has a nice thick rubber washer to go between it and the tank.
Do I need to use any sealant, and if so, what?
Originally I used silicone, but this turned to squishy jelly, so I'm not using that again!
David
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ady8077
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| posted on 25/8/04 at 10:12 PM |
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Hi David
I had to use a selant to stop the sender leaking with a full tank, i use red instant gasket from halford
Adrian
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mad4x4
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| posted on 26/8/04 at 02:44 PM |
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Does red Instant gasket resist petrol?
I alwas thought instant gasket said something like "not for use with petrol .......... or cylinder heads" on the packet.
Am I wrong?
Scot's do it better in Kilts.
MK INDY's Don't Self Centre Regardless of MK Setting !
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ady8077
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| posted on 26/8/04 at 03:55 PM |
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Hi
It says petrol resistant on the tube
Adrian
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type 907
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| posted on 26/8/04 at 08:11 PM |
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Hi David,
I would use a rubber gasket dry.
If a sealant is used it acts as a lubricant when you do up the bolts, alowing the rubber to squish out sideways.
You find when you dismantle an old rubber joint it has stuck to the metal anyway.
If you do use a sealer, lightly tighten, then fully tighten when set.
Paul G
Too much is just enough
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ady8077
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| posted on 26/8/04 at 10:16 PM |
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I tried the rubber gasket dry, but when you tighten the screws it distorted the sender and tank slightly and only squashed the gasket under the
screws. Petrol pissed out
Adrian
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type 907
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| posted on 26/8/04 at 11:19 PM |
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Hi Adrian,
What is the thickness of your tank flange?
I find it strange that the tank distorted.
Did you tap the flange or use self tappers?
Paul G
Too much is just enough
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David Jenkins
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| posted on 27/8/04 at 07:22 AM |
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In my case, I just have a hole in the (very hard) aluminium sheet - no flange. I'm using self-tappers, which seem to have worked OK. In the
instructions it actually says to do the screws up firmly, but not too tight.
Paul, I tried using a gasket sealant last night and got precisely the effect you describe! Stripped it all down, cleaned it off and started again,
but dry. Mind you, after cleaning the rubber still had a slightly sticky feel.
We'll have to see what happens when I fill it up...
David
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