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Requests for Help and (Hopefully) Answers / Rear Brake failure
« Last post by ArthurFarrow on April 18, 2018, 04:37:53 PM »
Bought a Hesketh a couple of weeks ago and joined the club. Hello will be at Stafford so Ill roll up on the H stand.

Well finally the weather turned and I finished all the detail work I needed on the bike (seat is a pig to open) however 10 miles into the run the rear brake totally failed. No evidence of leakage anywhere so crept home gently (or as gently as a 3,000 rpm tickover allows-mayeb I caught the cable when the tank was off) Not fun!

My suspicion is a burst seal on the master cylinder as the rear calliper was not that hot and seemingly not binding. Any idea part number ? I traced the calliper seal set to 98.5032.50 ...anybody confirm that is right?

2 hours after my ride and the brake is starting to have some feel again so maybe it is the rear calliper..any thoughts folks I hate working on brakes.

2
Hesketh-Related Chat / Re: YNH 659 W
« Last post by Rob B on April 03, 2018, 10:09:16 AM »
Quote from: Dave Snr on April 02, 2018, 11:59:55 AM
Hi Rob,

Interesting - shows how careful we need to be buying and selling bikes.

Good news is that Arthur has now got his bike and is learning about all things Hesketh.

The reg number is interesting as it was used by Hesekth Motorcycles at Eaton Neston on a development bike.
Nice thing about Heskeths, they all have a story to tell.

Dave H

That is good news indeed. I don't think we ever stop learning about all things HESKETH...  :D

RB
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Hesketh-Related Chat / Re: YNH 659 W
« Last post by Chris N on April 03, 2018, 07:57:44 AM »
that is good news.
4
Hesketh-Related Chat / Re: YNH 659 W
« Last post by Dave Snr on April 02, 2018, 11:59:55 AM »
Hi Rob,

Interesting - shows how careful we need to be buying and selling bikes.

Good news is that Arthur has now got his bike and is learning about all things Hesketh.

The reg number is interesting as it was used by Hesekth Motorcycles at Eaton Neston on a development bike.
Nice thing about Heskeths, they all have a story to tell.

Dave H
5
Hesketh-Related Chat / Re: YNH 659 W
« Last post by Rob B on March 30, 2018, 10:12:21 PM »
Hi Arthur,

I'm not sure if this helps, but I suspect not. Hope it resolves itself as I was also interested in buying that bike.

https://www.gov.uk/government/news/end-of-the-road-for-banned-classic-motorbike-dealer

All the best,

Robert
6
Hesketh-Related Chat / Re: YNH 659 W
« Last post by Chris N on March 20, 2018, 10:15:38 PM »
Hi Arthur
its marked as sold on their web site now so best remain positive.
However not wanting to infer anything,on their active facebook page on community posts there has been a post in january about a Mr Wexham's Cotswold Classics Limited going bust and looking at companies house another Mr Wexham formed we sell classic bikes ltd.
i hope you get a good result as they are great bikes.
Chris
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Hesketh-Related Chat / YNH 659 W
« Last post by ArthurFarrow on March 19, 2018, 10:43:10 PM »
Hi there 10 days ago I bought this black bike. At least I thought I did. Paid in full now the dealer is avoiding me and I suspect trouble ahead.

I know it was on sale or return and do not think the owner was a member but anybody recognise it. Frame 013.

Bugger 
8
Requests for Help and (Hopefully) Answers / Re: LHD HEADLIGHT UNIT
« Last post by Rob B on March 02, 2018, 04:04:19 PM »
Good news Chris. Mk1 and Mk2 Golf both the same apparently. So there shouldn’t be a shortage of them just yet....
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Maintenance, Repairs, Upgrades and Improvements / Re: Leakey rev counter drive
« Last post by Rob B on March 01, 2018, 01:04:44 PM »
Hi Chris,

One thing to remember when using the camshaft bearing jacking screws is to check that the respective camshaft is "off cam". In other words, the cam lobes are facing away from the buckets. Can be done by removing the plug and checking for TDC on compression, not on valve overlap. Other than that, I always use automotive clear silicone for all jointing faces on the Hesketh engine, just as they did in the factory - not bathroom sealant though, although that actually works too :-)  Proper motorcycle engineers will cringe at this but the cheapo clear silicone snot simply works whereas you can spend a fortune on Rocol Hylomar, STAG Wellseal, Heldite and all manner of other fancy stuff that simply won't work with a Hesketh engine.

There is a lip seal inside the right-angle rev-counter drive unit which always leaks so the best thing is to also use a bit of the clear silicone when tightening up the cable nut. Oil then travels some way up the inside of the cable but never seams to make it up as far as the rev-counter, except after a very long run...

RB
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Maintenance, Repairs, Upgrades and Improvements / Leakey rev counter drive
« Last post by Chris N on February 28, 2018, 08:53:47 PM »
in an attempt to reduce the number of oil spots left on other peoples drives i thought i would have a go at fixing the leak from the joint between the aluminium casting and the steel gear housing.
there seamed to be a lot of play between the two parts.



after a while it dawned on me that the two grub screws were there to be screwd in to start separating the unit from the head,a nice touch.
having removed the unit it became obvious the problem was the retaining nut was loose,i could undo it with a finger.



not having a special tool,butchering an old socket of the correct diameter with a dremel resulted in something that would do the job nicely.



with a slightly thicker o ring fitted and the threads degreased and a couple of drops of locktite,it all went back together.job done,or so i thought.
 


oddly a couple of hundred miles later oil drops started leaking from the aluminium end cap.It all came off the bike again,i checked the unit was not bottoming out on the slot in the camshaft and i have no idea why it started from there.after cleaning a bead of glue is the best i can do.

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