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Allen Bolt Tread Worn Issue - Need Help
Posted: Fri Apr 13, 2018 8:27 pm
by dada
Hi, I tried removing crank case filter which was super dirty but when tried to bolt it again the Allen bolt it has tread is a bit worn on engine side.
What taps to use on bike to make it good again ??
Re: Allen Bolt Tread Worn Issue - Need Help
Posted: Sun Apr 15, 2018 4:17 pm
by cbranni
I think the thread size is 1 3/16 x 20tpi, Tracy Tools have a tap in stock, buy the CS Plug tap for £18, that is good enough.
https://www.tracytools.com/taps-and-die ... ct_id=1012
Check you have the spring and caps in the correct order.
Colin
Re: Allen Bolt Tread Worn Issue - Need Help
Posted: Mon Apr 16, 2018 12:54 am
by Ozmadman
AND.... push some rag down the tunnel to ensure no swarf gets into the oil, not too far as there is an oil way drilling a little way down on the left
Re: Allen Bolt Tread Worn Issue - Need Help
Posted: Mon Apr 23, 2018 9:00 pm
by dada
I have bought 1 3/16 as suggested but it is bigger than mine not good.
Any idea what is correct size and from where I get it.
Re: Allen Bolt Tread Worn Issue - Need Help
Posted: Tue Apr 24, 2018 5:28 pm
by Paul R
Just measured (allen keyed oil filter) plug off mine( engine in bits ) and 1" diameter x 20 TPI .Tracy tools tap listed but cheaper ones seem to be out of stock ? If you get stuck you can make a tap if you know some one with a lathe . Turn threads on a bit of 1" silver steel and grind /file V slots and will do the job as a one off . Good luck .
Re: Allen Bolt Tread Worn Issue - Need Help
Posted: Wed Apr 25, 2018 6:43 pm
by cbranni
Darren, can I please apologise for my error, I must have picked up the wrong crankcase half and measured the thread of the oil tank filler not the filter, sorry.
Colin
Re: Allen Bolt Tread Worn Issue - Need Help
Posted: Fri May 04, 2018 2:17 pm
by dada
Hi,
Ok don't worry got another taps size 1" and fixed the issue.
Special Thanks to Tracy tools and all people here.
Darren