Heartbreaking pictures

Fast Eddie said:

Quite right. A sealant would be fine (but also unhelpful in this application as the sealing is done by the washer, not the thread).

I was indeed referring to thread lock, if that’s used then clearly the chance of such a failure, if ever the tap is turned, is greatly increased.

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LOCTITE 567

LOCTITE 567 is an off-white, UL approved, low disassembly strength methacrylate thread sealant, ideal for sealing coarse threads up to M80/R3”.

www.henkel-adhesives.com

concours said:

I strongly disagree. That dowty washer was never intended to reach down between threads and seal gas. They are sketchy at best. Bin them, use a gasoline proof sealer (I use Loctite 567) and it's leak free, easily removable.
JMWO

LOCTITE 567

LOCTITE 567 is an off-white, UL approved, low disassembly strength methacrylate thread sealant, ideal for sealing coarse threads up to M80/R3”.

www.henkel-adhesives.com

Click to expand...

Fast Eddie said:

As designed, the tap was intended to seal against the sealing washer and tank. The parallel threads were never intended to seal against petrol.

Not saying you can’t… never tried it… just that it isn’t the intended method and therefore shouldn’t be necessary.

But we digress from my main point, which was that use of thread lock can increase the likelihood of shearing a tap off as per the OPs.

So, use thread sealant if you wish, but do not use thread lock, is my advice.

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daveforty said:

I had a petrol tap break like that once, it will unscrew easily enough. A wide bladed screwdriver in the hole is all it will need to turn it out.

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EstuaryBoy said:

I'm guessing my SU plus associated paraphernalia must weigh at least three, possibly four times the single Mikuni set up (I have had both here ), yet that hangs happily on just the two outer fasteners. Assuming your mating surfaces are true I'd ditch the inner bolts/screws/studs.......

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concours said:

Did the original taps have a shoulder (I was thinking about this in rush hour traffic this afternoon.) I imagine it would have had to, to use that washer effectively.

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concours said:

Did the original taps have a shoulder (I was thinking about this in rush hour traffic this afternoon.) I imagine it would have had to, to use that washer effectively.

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Larry S said:

Got my taps from Morries Place today, a day earlier than expected. I think they look of better quality than the old. Installed taps, added primary and engine oil, lubed chain and added fuel. The beast fired up at the touch of the start button. I promptly took off for a short ride. It rode and sounded beautiful! Rode it to the gas station and filled with the good stuff and returned to the shop. It was then deer-thirty so no more riding for tonight. Going to do some serious riding tomorrow for sure. Happy, fuckin' happy.

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