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+--- Thread: Rubber washers (/showthread.php?tid=2707)
RE: Rubber washers - Andy Bennett - 27-04-2019
hm they look like a good idea for next time.
given that the banjo thread is M11 do you use a tight M10 (does that even fit) or a sloppy M12 or something imperial?
cheers
Andy
RE: Rubber washers - morrisminor - 27-04-2019
What size dowty would be ok Ruairidh ?
RE: Rubber washers - Andy Bennett - 27-04-2019
my mistake, its M12 x 1.25, so M12 Dowty ordered.
thanks as always for v useful tips
Andy
RE: Rubber washers - Ruairidh Dunford - 27-04-2019
I use imperial ones Scott - see here for example: https://www.ebay.co.uk/i/362103952469?chn=ps&var=631319352903
I also use them for scuttle tank fuel joints and SU banjos.
RE: Rubber washers - morrisminor - 27-04-2019
Thanks R, what size would I need and do you use sealant ?
RE: Rubber washers - Ruairidh Dunford - 27-04-2019
Hi Scott,
1/4 BSP, if your banjo union bolt is that size.
I don't use any sealant on this type of washer
RE: Rubber washers - squeak - 27-04-2019
Ah sorry there I was thinking you meant the carburettor to manifold joint. My mistake.
RE: Rubber washers - morrisminor - 27-04-2019
I'm not very imperial Ruaridih, if I've read it correctly you measure the thread diameter which is half inch then subtract a quarter inch, leaving quarter inch hence quarter BSP ? Does that sound about right, think I should have gone to school 15 years earlier !!
RE: Rubber washers - Ruairidh Dunford - 27-04-2019
I am no better qualified to tell you this Scott, metrification came in way before I was born - many on here will know for sure though.
I am fairly certain however, that the standard banjo union bolt is 1/4 bsp.
RE: Rubber washers - "Slack Alice" Simon - 27-04-2019
Apologies for the late reply.
I use the locking goo that is for the lightly loaded components like ordinary nuts and bolts.
Not "Stud Grade" or "Bearing Retainer", these achieve successively stronger bonds.
You don't want a strong bond, just sealing of the joint.