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Messages - SUPERGRUMPS

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1
Singles / Re: C15 running issue
« on: 06 November, 2019, 15:17:16 »
One thing nobodies mentioned is your tappet clearance, not enough clearance would mean the valves staying slightly open when the engine warms up. wont cost you anything to check 10thou for Ex and 8thou for inlet.

2
Singles / Re: 6v to 12v and then electronic ignition
« on: 01 August, 2019, 20:38:12 »
I have a C15 which has been converted to 12v, quite straight forward and worth the effort, if just for the easily obtainable bulbs and batteries. I have toyed with converting to electronic ignition, but  is it really worth the bother,. I will be watching this space to see if anybody replies to your question, regards

3
Singles / Gas tight exhaust connection
« on: 27 May, 2019, 14:52:55 »
On fitting the exhaust front pipe to the cylinder head of my C15, I was surprised there is no gasket or sealant to make it a gas tight seal, or am I missing something. any comments please,

4
Singles / Re: C15 1967 flexible pipes from oil tank to engine
« on: 28 February, 2019, 20:23:59 »
Got mine from Vehicle wiring Products, don't be put off by the name they do all sorts of stuff

5
Singles / Re: C15 petrol tap
« on: 20 February, 2019, 16:51:09 »
Hi Bernie, yes, its a push and pull for on and off and a separate lever for the reserve. If you look on ebay its under VINCENTPARTS. Only £14.00

6
Singles / Re: C15 petrol tap
« on: 19 February, 2019, 16:37:47 »
Just obtained a tap from Andy davenport (Vincent Parts) for £14.00 inc P&P. Replaced mine as I wanted one with a reserve facility.

7
Singles / Parts to stop handle bars hitting tank on full turn
« on: 19 November, 2018, 16:28:31 »
During a recent MOT for my 1967 C15, The tester listed in the advisory section that the handlebars had no "Buffer" when on full lock to avoid coming into contact with the fuel tank. I noticed on the bottom yoke there are screw holes which something screws into this to fulfil this requirement. I have trawl through all my parts/ workshop manuals and can see nothing. anybody had a similar problem or can send me picture of how its achieved on their bike.

8
Singles / Re: The big day is nearly here..
« on: 04 January, 2018, 16:03:34 »
Did the same thing a year or so ago, before I tried starting i took the plug out and kicked it over to oil came out of the return pipe or the feed to the rockers.

9
Singles / Re: Rebore and cranckshaft services
« on: 28 November, 2017, 14:24:09 »
Contacted Dragonfly, they do not service (Pressed) crankshaft assemblies, anybody know who does

10
Singles / Riders L/H footrest
« on: 28 November, 2017, 14:21:41 »
The LHT nut holding the riders L/H footrest has stripped on my C15. The thread on the Tapered/splined stud has also stripped, requiring a replacement Stud. to say the set up to hold the footrest onto the frame  is over engineered is an understatement. I am in the process of removing the stud from the frame. Can anybody tell me if it is left hand or right hand thread on the stud that screws into the frame.
thanks

11
Singles / C15 Rear Brake pedal Pivot Pin
« on: 25 November, 2017, 15:28:32 »
Hi, I am trying to obtain the rear brake pedal  pivot pin for my C15. I have seen many advertised for a bantam and looking at the pictures, it seem identical. can anyone confirm this. Or tell me of a supplier

thanks

12
Singles / Re: Rebore and cranckshaft services
« on: 16 November, 2017, 14:41:25 »
thanks Steve, will ask them for a quote

13
Singles / Rebore and cranckshaft services
« on: 13 November, 2017, 14:06:35 »
Hi, can anyone recommend a specialist company that can do rebores (and supply new piston) as well as crankshaft grinding etc. for a c15 engine

14
Singles / Re: Internal Incontinece
« on: 27 July, 2017, 19:27:00 »
Thanks OM15, but its a bit risky, what if you forget to turn it on. I managed to get a anti wet sumping valve, which is basically a non return valve, that works as follows. when the engine is running the suction of the pump is enough to pull the disc of the seat and allow oil flow, when the engine is off, there is equal pressure either side of the disc, thus preventing oil flow. I have fitted this, however still not sure whether it works.

15
Singles / Re: C15 oil feed problem
« on: 27 July, 2017, 19:20:36 »
mine is the same, but it does work, I think its just a case of pipe diameter, and a smoother internal bore, hence the use of copper. Tthere will be less resistance in the copper pipe leading to the rockers, so enough oil will get to. can only suggest you have a slight blockage or the copper pipe may be kinked on route. 

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