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by Simon.Gardiner
Sun Feb 28, 2021 10:55 pm
Forum: Four stroke
Topic: width of VH rod
Replies: 10
Views: 189

Re: width of VH rod

I've got one rod at 0.680 and one at 0.690 (both across the eye of the forging). Regarding the side-clearance, Phil Irving ('Tuning for Speed') comments: 'The correct amount of side clearance varies according to the design, but is rarely of great importance, 0.010-0.020 being about right in most cas...
by Simon.Gardiner
Sat Feb 27, 2021 3:01 pm
Forum: Four stroke
Topic: Primary drive set up
Replies: 12
Views: 231

Re: Primary drive set up

Charlie:

Unfortunately that's completely the wrong spacer - looks more like the one that goes behind the sprocket on the gearbox.
The correct spacer fits 'snugly' inside the crankcase and bears against the main bearing inner race,

SG
by Simon.Gardiner
Wed Feb 24, 2021 12:17 pm
Forum: Main Chat Forum
Topic: Daily Fixing and Riding Diary on an Ariel 2021
Replies: 91
Views: 4302

Re: Daily Fixing and Riding Diary on an Ariel 2021

I thought maybe my life-expired garage was the reason I suffer lots of surface rust over winter - but here in Weston-super-Mare whether I'm near the sea or not depends on if the tide's in, or out!

SG
by Simon.Gardiner
Mon Feb 22, 2021 9:36 pm
Forum: For sale/wanted - Bikes
Topic: For Sale - SQ4 MK11 1958
Replies: 7
Views: 369

Re: For Sale - SQ4 MK11 1958

.... If I could ride it I wouldn’t be selling it. Take off the dualseat and fit a lower single seat - all the mountings are there (I think this has been raised before around here, probably some pics somewhere....) Edit: Here we go the this thread is on single saddles for late Squares and has links ...
by Simon.Gardiner
Sat Feb 20, 2021 3:42 pm
Forum: Four stroke
Topic: 3.50 Front tire on a 1950 NH350 Rigid (tele)
Replies: 6
Views: 265

Re: 3.50 Front tire on a 1950 NH350 Rigid (tele)

Charlie
Roadriders or something more traditional like Avon SMs?
You should be OK for clearance either way, I don't recall things being particularly tight around the front wheel.
Roadriders look to be much lower anyway, my rear 3.50 looks much smaller than a 3.50 SM

SG
by Simon.Gardiner
Fri Feb 19, 2021 5:50 pm
Forum: Main Chat Forum
Topic: American Ariel import
Replies: 8
Views: 424

Re: American Ariel import

Very good point, Will.
Not that it's absolutely definitive but the notes on the Cyclones mention in passing that the last ever FH to be despatched (24/02/59) had the engine number 6056.
(But if you're going to overstamp to deceive why make such a pig's ear of it?!)

SG
by Simon.Gardiner
Thu Feb 18, 2021 6:35 pm
Forum: Ariel Talk
Topic: BSA unit singles sump filter kit
Replies: 7
Views: 169

Re: BSA unit singles sump filter kit

On the grounds that their BSA unit singles kit has a different part number to their A7/A10 (etc) kit, no it won't fit a Huntmaster. The Huntmaster 'plate' is the same as the A10 BUT the filter gauze ain't - leastways, not in my experience 'cos when I got mis-supplied with an A10 kit from Drags there...
by Simon.Gardiner
Mon Feb 15, 2021 5:52 pm
Forum: For sale/wanted - Parts
Topic: wanted: hot cam
Replies: 4
Views: 714

Re: wanted: hot cam

TP: The (HS) Mk1 cam has .450 lift, the mk3 cam .410 (inches!) There's a big discussion on cams in this thread: http://forum.arielownersmcc.co.uk/viewtopic.php?f=21&t=1428 For valve spring info (and possibly some more cam info!) maybe look in this thread: http://forum.arielownersmcc.co.uk/viewto...
by Simon.Gardiner
Sun Feb 07, 2021 12:21 am
Forum: Ariel Talk
Topic: Sludge Trap Replacement.
Replies: 10
Views: 1202

Re: Sludge Trap Replacement.

I swear by these surface-drive sockets (drive off the flats, possibly originally designed to cope with very rounded-off nuts/bolts). They also accommodate more 'slop' in the fit than you'd normally expect - so my 7/16 A/F surface-drive socket fits the original Whitworth hex heads just fine, but has ...
by Simon.Gardiner
Fri Feb 05, 2021 1:03 am
Forum: Four stroke
Topic: Ariel Identification
Replies: 7
Views: 322

Re: Ariel Identification

Luiz:
The very early 1952 models (which I think yours is, from the numbers) would have had a CP gearbox, with G108 in the number.
It would be an NH 350 Red Hunter.

SG

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