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by Pete.Silson
Fri Apr 28, 2017 12:53 pm
Forum: Main Chat Forum
Topic: help-finding Senspray carb missing from Brooklands Museum
Replies: 6
Views: 1161

Re: help-finding Senspray carb missing from Brooklands Museum

Has this carb been been recovered yet? There is one listed on ebay with cables and levers

https://www.ebay.co.uk/itm/222485739816

Pete
by Pete.Silson
Wed Apr 26, 2017 11:55 am
Forum: Four stroke
Topic: BA Gearbox Questions
Replies: 2
Views: 467

BA Gearbox Questions

Having finally managed to extract the gear cluster: 1) I have found a broken spline on the layshaft (inside the 3rd gear). Is this a fatal flaw or can I still run this layshaft with reduced number of splines? 2) The layshaft clutch seems quite rounded. Do I need to find a replacement for it? 3) Ther...
by Pete.Silson
Wed Apr 26, 2017 11:44 am
Forum: Four stroke
Topic: Stubborn BA gearbox nut
Replies: 11
Views: 1326

Re: Stubborn BA gearbox nut

Thanks for all the replies. I had already tried an air spanner with no effect and after a further day of grunting and swearing with a long arm socket I gave up and resorted to Nev's suggestion and cut off the nut. The nut easily separated into two halves with a splitter however one half of the nut s...
by Pete.Silson
Wed Apr 19, 2017 10:25 pm
Forum: Four stroke
Topic: Stubborn BA gearbox nut
Replies: 11
Views: 1326

Re: Stubborn BA gearbox nut

There is a short section of thread clear of the nut I am pretty certain it's RH (looks like 7/16" 26tpi to me). I'll give it another go tomorrow.
Pete
by Pete.Silson
Wed Apr 19, 2017 8:35 pm
Forum: Four stroke
Topic: Stubborn BA gearbox nut
Replies: 11
Views: 1326

Stubborn BA gearbox nut

I am in the process of dismantling a BA gearbox and am having trouble removing the kick-start ratchet nut on the mainshaft. I have tried repeated heat, freezing spray and a half metre long T-bar on a socket and the damn still thing refuses to budge. Questions: 1. How much heat can be applied without...
by Pete.Silson
Mon Apr 03, 2017 3:22 pm
Forum: Ariel Talk
Topic: Side Stand
Replies: 15
Views: 2082

Re: Side Stand

Paul, The (righthand) prop stand from the SQ4 bolts though the front engine plates. 2.JPG 3.JPG I don't know if your plates will have the holes drilled already or whether these would be a factory modified set for the £10 add-on in the advert. It also has a spring clip bolted to a lug on the lower fr...
by Pete.Silson
Fri Feb 17, 2017 10:10 am
Forum: Four stroke
Topic: Brake Pedal Stop
Replies: 11
Views: 1338

Re: Brake Pedal Stop

Simon,

The picture below shows the pedal stop bolt in situ on my iron 4G, this holds the pedal level with the footrest. The groove on the stop is due to wear over the years I guess rather than a design feature.

Pete

DSCF0156.JPG

Ariel 003.jpg
by Pete.Silson
Thu Feb 02, 2017 10:44 am
Forum: Main Chat Forum
Topic: solex carb sq4
Replies: 9
Views: 694

Re: solex carb sq4

Keith, I have just overhauled my 26AHD and, like you, found that the butterfly didn't close fully after reassembly. After taking it apart again I noticed that the butterfly has a chamfer around the edge and therefore can only be fitted one way up - this may be the issue with yours. Also the holes in...
by Pete.Silson
Wed Dec 14, 2016 4:34 pm
Forum: Four stroke
Topic: 4G conrod markings
Replies: 3
Views: 411

Re: 4G conrod markings

...and the pistons apparently.
pistons.JPG
by Pete.Silson
Sun Dec 11, 2016 12:59 pm
Forum: Four stroke
Topic: 4G conrod markings
Replies: 3
Views: 411

Re: 4G conrod markings

Paul, The letter B is stamped into the web (not cast) and is on the left hand (roller bearing) side of all the rods. It would seem logical to mark the rods in this way to ensure correct re-assembly. The bearing caps are also marked (see photo). The crankshafts in this engine had clearly never been d...

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