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by pete.collings
Thu Mar 31, 2011 7:15 pm
Forum: Four stroke
Topic: Single Cylinder Crankcases
Replies: 4
Views: 1118

No reason, you just need to drill and tap a hole to take the fifth barrel base stud. It might also be worth checking if the large d/s and t/s bearings have moved in the crankcase, as these will (should?)be replaced by roller bearing outer races, and the d/s outer can come loose and work inwards, cat...
by pete.collings
Tue Mar 22, 2011 8:54 am
Forum: Ariel Talk
Topic: Improving the front forks
Replies: 16
Views: 7793

There are details in the knowledgebase of the factory mods to improve the forks, involving shortening the top bushes, moving the lower bleed hole upwards, and filing a teardrop around the upper bleedhole to slow down oil cutoff. Just search the knowledgebase using the keyword forks. I have made my o...
by pete.collings
Wed Mar 16, 2011 6:10 pm
Forum: Electrics
Topic: 12 volt dynamo systems
Replies: 5
Views: 2335

Charlie/Dick It is possible to fit an oil seal from a K2F mag to the endplate of a MOI mag (flat head rivets with head inside), you also need to shorten the peg that locates the slipping clutch lockwasher. You can strip the drive gear for a number of reasons, dynamo sticking/jamming, up and down pla...
by pete.collings
Tue Mar 15, 2011 2:40 pm
Forum: Electrics
Topic: 12 volt dynamo systems
Replies: 5
Views: 2335

Re: 12 volt dynamo systems

I have used a JG 12v unit in the past, on both a VH and a FH, and had no problems with either over many years. They just used the dynamo as is without a new 12v fields coil or armature, although the dynamo needed to be in a good working condition (and the magdyno clutch drive grease free!). The inst...
by pete.collings
Thu Mar 10, 2011 10:00 am
Forum: Four stroke
Topic: VH 500 1949 Head gasket
Replies: 8
Views: 3796

Re: VH 500 1949 Head gasket

I believe thin copper head gaskets were only specified for iron singles engines, including the 350, but are not vital if there is a good fit between the barrel spigot and head recess (achieved by lapping in with some form of grinding paste, dependent on the state of both!). I have sold a few copper ...
by pete.collings
Mon Mar 07, 2011 9:52 am
Forum: Main Chat Forum
Topic: Flat Tyre
Replies: 7
Views: 2342

Re: Flat Tyre

Regarding using french chalk to fit/refit a tyre and tube, a substitute that is much easier to obtain in talcum powder, preferably the baby type as it doesn't have any additives/scent. Used liberally inside the tyre ( shake in and rotate the tyre until the inside is coated) and rub into the beading,...

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