Search found 276 matches

Go to advanced search

by MARK.WALSH
Thu Sep 19, 2013 8:50 pm
Forum: Four stroke
Topic: square 4 regulator shield
Replies: 2
Views: 813

square 4 regulator shield

Any of you square 4 boffs (or other ariel owners) know the purpose of the strange metal shield or deflector that sits over the regulator on the single saddle models (mine is a 1951 model . An example can be seen on a square 4 on ebay at the moment - the 1st one I have seen since buying my restoratio...
by MARK.WALSH
Fri Aug 23, 2013 8:42 am
Forum: Four stroke
Topic: Confused of Norwich writes on the subject of coupling gears
Replies: 19
Views: 3171

Re: Confused of Norwich writes on the subject of coupling ge

Simes the blog on your rebuild is invaluable. I have the same year square 4 as yourself - sans chrome due to korean conflicts. I got the coupling gears on at last but I found my problem was that a previous owner 'staked the threads - hence making the puller hard to catch on to the shaft - all sorted...
by MARK.WALSH
Sat Aug 17, 2013 3:16 pm
Forum: Four stroke
Topic: Confused of Norwich writes on the subject of coupling gears
Replies: 19
Views: 3171

Re: Confused of Norwich writes on the subject of coupling ge

Simon
did you sort out the problem with the different threads on the coupling gear pusher/puller
I went to use my one today (supplied by dragonfly) and have the same problem as you...any answers???? (apart from draganfly have had us over)
Regards
Mark
by MARK.WALSH
Sun Jul 21, 2013 7:50 pm
Forum: Four stroke
Topic: square four end caps
Replies: 3
Views: 761

square four end caps

After waiting months to get my motor parts back from the engineers I started to rebuild the cranks over the weekend, and only on a close 2nd glance did I notice a hairline crack on one of the end caps running down the side of the cap in line with the bolt. I know the engineer broke a socket trying t...
by MARK.WALSH
Sun Jul 21, 2013 7:42 pm
Forum: Four stroke
Topic: Confused of Norwich writes on the subject of coupling gears
Replies: 19
Views: 3171

Re: Confused of Norwich writes on the subject of coupling ge

I just bought one of these and i also was scratching my head on its use If you look carefully there are 2 types of thread, one matches the crank, so I assume you lock it in with the crank retaining nut. Have not tried it out in anger yet as im still stuck with a completly dismantled engine on my reb...
by MARK.WALSH
Fri Jun 21, 2013 8:57 pm
Forum: For sale/wanted - Parts
Topic: square 4 big end shells +10 wanted
Replies: 4
Views: 857

Re: square 4 big end shells +10 wanted

Hi thanks for all your replies and help. I managed to get a set from Thorntons but was unaware we had a spares specialist in the owners club (must rechech any papers they sent me on joining) With a bit of luck I might get this ol bike back on the road by the end of summer if it doesnt bankrupt me in...
by MARK.WALSH
Fri Jun 21, 2013 12:03 pm
Forum: For sale/wanted - Parts
Topic: square 4 big end shells +10 wanted
Replies: 4
Views: 857

square 4 big end shells +10 wanted

Hi
anyone know where I can get a full set of +.10 thou shlls for my 1951 square 4
Dragonfly have them on back order from a year ago from a supplier and are still waiting

Regards
Mark
by MARK.WALSH
Wed Jun 12, 2013 10:39 pm
Forum: Four stroke
Topic: Seat mounting Square 4 Mk 1
Replies: 5
Views: 1248

Re: Seat mounting Square 4 Mk 1

brian
as i am slowly rebuilding my 1951 square 4 I now doubt the bracket I showed you is correct.
Have you established the correct one, or do you now know what it looks like. Sorry if I misled you but the one I had was on the bike when I bought it
Thanks
Mark
by MARK.WALSH
Fri May 31, 2013 9:26 pm
Forum: Four stroke
Topic: mk 1 square 4 piston rings hepolite +30
Replies: 15
Views: 2293

Re: mk 1 square 4 piston rings hepolite +30

thanks for all the replies I have managed to get a set of rings from thorntons - I will let you know if I have any problems or not, once my engineer hones the barrels and fits and gaps the rings. Looks like I may have found a cheap way out of an expensive problem.....famous last words Hopefully I wi...
by MARK.WALSH
Wed May 08, 2013 7:28 am
Forum: Four stroke
Topic: mk 1 square 4 piston rings hepolite +30
Replies: 15
Views: 2293

mk 1 square 4 piston rings hepolite +30

hi on rebuilding my square 4 I have found it to be on +30 pistons. The bores are all fine but the rings have lost some tension according to the machinist working on it. Draganfly only do rings for the mk11 square 4 which means machining down the grooves on my existing pistons to get a fit. Anyone kn...

Go to advanced search