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Re: Oil pump pluger guide screw
Posted: Mon May 29, 2017 8:21 pm
by clive
And if you fit a washer under the pin holder it will mean that the guide pin is not fully engaged and may accelerate wear on it.
Re: Oil pump pluger guide screw
Posted: Tue May 30, 2017 12:51 pm
by shifter
So why is there a washer under the one in the photograph, I'm only asking as while checking my bike over 16ms after fitting a new k/start spring I noticed a line of oil running down the engine case from that screw/bolt. (Mine by the way has no washer on) so I nipped it up a little and have not had any oil reappear as of yet
Kevin
Re: Oil pump pluger guide screw
Posted: Tue May 30, 2017 9:04 pm
by Pharisee
shifter wrote:So why is there a washer under the one in the photograph,
There was a red fibre washer under that screw when I took the engine apart (put there by a previous keeper, presumably) and not knowing any different, I put a new one back when I rebuilt the engine. Simple as that....
Re: Oil pump pluger guide screw
Posted: Tue May 30, 2017 9:11 pm
by shifter
Thank you now I know that mine is ok
Re: Oil pump pluger guide screw
Posted: Sat Jun 03, 2017 10:08 pm
by 56G80S
I'd follow Bob Zwarts advice.
Having snapped one of those little bolts many years ago, go steady. There's hardly any room to make a proper job of removing the "stump" if it's one that's closest to the crankcase.
Johnny B
Johnny B
Re: Oil pump pluger guide screw
Posted: Mon Jun 26, 2017 9:36 pm
by Andy E
Welseal sorted the leak from the guide pin screw. I replaced the rather tatty screws securing the oil pump front cover at the same time. I then had to deal with a leak from the front cover. It transpires that the new screws sourced from the club spares scheme have a head diameter about 0.7mm larger than the originals. This means that some of the tightening torque is used to force the screw head into the recesses in the cover. I refitted the original screws and all is good again.
Re: Oil pump pluger guide screw
Posted: Mon Jun 26, 2017 10:48 pm
by Pharisee
Andy E wrote:Welseal sorted the leak from the guide pin screw. I replaced the rather tatty screws securing the oil pump front cover at the same time. I then had to deal with a leak from the front cover. It transpires that the new screws sourced from the club spares scheme have a head diameter about 0.7mm larger than the originals. This means that some of the tightening torque is used to force the screw head into the recesses in the cover. I refitted the original screws and all is good again.
Yeah... I found the club screws had a head that was just a smidgin too large for the counter-bore in the end cover. I sourced some 3BA stainless cap head screws that fitted perfectly.