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by john.whiting
Thu Jun 27, 2019 12:31 am
Forum: Four stroke
Topic: VH-crank - oil supply
Replies: 24
Views: 695

Re: VH-crank - oil supply

Panther 600s never had an oil hole or oil feed to the crankpin,I dont think the 650s have one either......they seem to survive OK.........I have a 500 JAP with the entire pin hole blocked with hard deposit,no sign of problems.......so is an oil feed needed in a roller bigend?
by john.whiting
Tue Jun 25, 2019 10:01 am
Forum: Member's Bikes
Topic: SpAriel MkII aka The Hermanator
Replies: 96
Views: 9427

Re: SpAriel MkII aka The Hermanator

Pirelli ,Michelin and Dunlop all made rubber cords for expensive furniture.....and Dunlop also made rubber seats for motorcycles.....probably none have survived ,though.
by john.whiting
Tue Jun 25, 2019 2:48 am
Forum: Ariel Talk
Topic: Dans son jus VG
Replies: 11
Views: 476

Re: Dans son jus VG

Doesnt look to have ever been apart.......or ever had a spill............wouldnt be surprised if its done under 1000 miles.
by john.whiting
Tue Jun 25, 2019 2:43 am
Forum: Four stroke
Topic: Replacing a VB tappet guide
Replies: 4
Views: 230

Re: Replacing a VB tappet guide

Its already broken,so grind or file it level with the flange,and make /find a piloted drift and press it out.......no hammering.......you might break the flange......The other possibility ,if you dont have a press,is using a 3/8 HT threaded rod,and some spacers pull it into the chamber.My suggestion...
by john.whiting
Tue Jun 25, 2019 2:35 am
Forum: Four stroke
Topic: Removing the ringds from a VB piston
Replies: 9
Views: 344

Re: Removing the ringds from a VB piston

The heavy burnt varnish is dissolved by a paint remover of the chlorinated kind.....dont use a caustic alkali,it will eat the alloy.......If the methyl chloride paint remover isnt available any more,try some spray carburretor cleaner,or maybe brake cleaner.
by john.whiting
Tue Jun 25, 2019 2:30 am
Forum: For sale/wanted - Bikes
Topic: If you try long enough.....
Replies: 10
Views: 684

Re: If you try long enough.....

Not unusual......under the law here an auctioneer acts as an agent for the vendor only,and assumes no responsibility to the purchaser.....and i might add,in the rarefied atmosphere of Zenith /Jap V twins a major world wide auction house have sponsored the sale of a $50,000 bike (a fake) with two com...
by john.whiting
Sun Jun 23, 2019 3:23 am
Forum: Main Chat Forum
Topic: Ariel twin
Replies: 49
Views: 1236

Re: Ariel twin

Back to the subject of twins,the early ones had a reputation for terrible vibration......and as mentioned here,a heavier flywheel and crank were fitted in the following years.....always a bad sign ........there is also a difference in the generator and maggie drive gears.....and different tooth mate...
by john.whiting
Sun Jun 23, 2019 3:15 am
Forum: Main Chat Forum
Topic: Ariel twin
Replies: 49
Views: 1236

Re: Ariel twin

Ive noticed the fuel tanks and oil tanks are quite common on ebay......and at swaps,as Ariel stuff goes...ie not plentiful.........in fact my VG has a twin fuel tank and oil tank,the fuel tank has the largest capacity of the tanks that fit a rigid(4gal),and the oil tank is set well back to allow a d...
by john.whiting
Sat Jun 22, 2019 8:14 am
Forum: Main Chat Forum
Topic: Ariel twin
Replies: 49
Views: 1236

Re: Ariel twin

plenty of frames and bits.....the motors were a bit problematic........in fact ,in the 60s and 70s ,I never saw a cast iron Ariel 500 twin motor that wasnt in bits....... having all the head securing nuts in between the fins wouldnt have helped..........at a time when a Speed Twin had 8 bolts easily...
by john.whiting
Fri Jun 21, 2019 2:43 pm
Forum: Four stroke
Topic: Otto Gaskets
Replies: 7
Views: 404

Re: Otto Gaskets

My iron head 4 ran without any head gaskets.......I surface ground the barrel and head, lapped ,and blued to check........No iron engine needs a head gasket if the surfaces match exactly......even water cooled engines...........soft head gaskets generally allow the fasteners to pull down bulges in t...

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