1927 AJS H4 big end assembly (350 SV) - new BE assemblies

Information relating to Matchless and AJS Models built prior to 1939
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1927 AJS H4 big end assembly (350 SV) - new BE assemblies

Postby g80csp11 » Thu Mar 26, 2020 5:49 pm

Just in case it helps anyone i've had 3 new BE assemblies made for my 1927 H4 340 SV
couldn't find a replacement anywhere , so had some made
let me know if you are interested and i can send pictures and cost
Alpha were never very keen to make me one !

I had 3 complete assemblies made by a specialist engineering company , so have 2 spare

New crank pin , cage , rollers , and nuts

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Re: 1927 AJS H4 big end assembly (350 SV) - new BE assemblie

Postby SPRIDDLER » Thu Mar 26, 2020 7:11 pm

g80csp11 (aka 'Thrifty Peter') may be a F1 engine development engineer but he still hasn't mastered posting photos. :roll:

Here are the big end assemblies with the replacement billet conrod.

Big end assy 1927 H4 (640x415).jpg


and this is the much ridden Ajay H4 (about an hour before a pothole fractured the crankcase and wrecked the piston and conrod on the return home).

CIMG4526 (640x480).jpg
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Last edited by SPRIDDLER on Fri Mar 27, 2020 10:02 am, edited 2 times in total.
I poke badgers with spoons.

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Re: 1927 AJS H4 big end assembly (350 SV) - new BE assemblie

Postby g80csp11 » Thu Mar 26, 2020 7:15 pm

Thanks Nev, should have also said fitted to a new Billet machined con rod, believe me this one wont break
good for another 93 years

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