Search found 1665 matches

Go to advanced search

by john.whiting
Mon Aug 17, 2020 12:17 pm
Forum: Four stroke
Topic: VG big end and flywheel assembly
Replies: 19
Views: 391

Re: VG big end and flywheel assembly

I see both are marked MF....which would be Midland Forge ,a part of Components Ltd ,before it went belly up ....
by john.whiting
Mon Aug 17, 2020 5:56 am
Forum: Ariel Talk
Topic: Engine rebuild - W/NG
Replies: 43
Views: 1983

Re: Engine rebuild - W/NG

You might consider Nickasil .....can be done 020 thick finished ,so a 40 over back to standard.....and may not be much dearer than a sleeve etc.
by john.whiting
Mon Aug 17, 2020 5:54 am
Forum: Four stroke
Topic: VG big end and flywheel assembly
Replies: 19
Views: 391

Re: VG big end and flywheel assembly

You might consider Nickasil coating ......most operators can get the deposit 020 thick finished ,for a repair of a 40 over bore..........by the time you buy a liner ,get it fitted,etc......the cost may not be much more.
by john.whiting
Sun Aug 16, 2020 10:23 pm
Forum: Four stroke
Topic: VG big end and flywheel assembly
Replies: 19
Views: 391

Re: VG big end and flywheel assembly

Flywheels do appear to be steel type ,as the trap is in line with the pinhole.....OK no worries there......I would go ahead provided the pin has some interference fit in the flywheel bore .....somewhere ,I think you quote .0004....ie about 1/2 thou......this is probably sufficient for a tourer ,but ...
by john.whiting
Sun Aug 16, 2020 9:47 pm
Forum: Four stroke
Topic: VG big end and flywheel assembly
Replies: 19
Views: 391

Re: VG big end and flywheel assembly

Side clearance only needs to be a minimum of say .005" when fully tightened.....provided there is some ,its OK ......max is generally set by the total endfloat of the whole assy in the cases.....Never use thin steel shims to set a clearance ,they will crunch up and come out .......Only engines ...
by john.whiting
Sun Aug 16, 2020 8:52 pm
Forum: Four stroke
Topic: VG big end and flywheel assembly
Replies: 19
Views: 391

Re: VG big end and flywheel assembly

Further comment ...dont punch the nuts/pins to secure...its completely unnecessary ,and wrecks the threads when next undone ......if you must have belt and braces,use some loctite........and......tapers must be clean and dry when done up ,or you will drag them thru the wheel ,and even crack the wheel.
by john.whiting
Sun Aug 16, 2020 8:47 pm
Forum: Four stroke
Topic: VG big end and flywheel assembly
Replies: 19
Views: 391

Re: VG big end and flywheel assembly

RC ,in fact your crankpin is not whats called a taper pin ......the taper pin has tapers either end similar to those on the flywheel ends of the mainshafts ........furthermore ,the diameter you quote is the 15/16" ,that was used in the early 30s motors .........and various experts advise it be ...
by john.whiting
Wed Aug 12, 2020 1:47 pm
Forum: Ariel Talk
Topic: First quick ride on the KH
Replies: 37
Views: 1539

Re: First quick ride on the KH

if you record here the dimensions of your filter ,many here have filter list books ......if its a spin on ,include the thread.
by john.whiting
Sat Aug 08, 2020 6:43 am
Forum: Four stroke
Topic: VH crankcase joint
Replies: 9
Views: 488

Re: VH crankcase joint

A lot of work /expense for very little benefit......if there is enough of the original register to locate the castings ,then that is sufficient...........Similar to the crankcases.......the barrel recess bore and remains of the ledge are quite sufficient to locate the cases,and once properly tighten...
by john.whiting
Fri Aug 07, 2020 10:46 am
Forum: Four stroke
Topic: Mk1 Sq 4 BLOWING HEAD GASKET
Replies: 23
Views: 1089

Re: Mk1 Sq 4 BLOWING HEAD GASKET

delete/delete.

Go to advanced search