1954 18S preservation project (with lots of pictures)

Information relating to the Matchless G80 or AJS Model 18 500cc Heavyweight.
User avatar
Posts: 331
Joined: Mon Nov 20, 2017 5:37 am
Location: USA, Colorado

Re: 1954 18S preservation project (with lots of pictures)

Postby cfaber » Thu Nov 14, 2019 6:04 pm

spookefoote1956 wrote:Spot on. The only thing I would have done differently is loosened off the push rods instead of clamping as you will need to check at tdc that they just spin.

:beer: :beer: :beer:


I actually tried that first and found it was still binding up a bit, so I had this old c-clamp that I sort of hated and thought, I could make a useful tool! :beer:
Fix it until it's broken!

Otherwise how will
anything get done?

Member
User avatar
Posts: 829
Joined: Tue Mar 15, 2016 8:51 pm
Location: Lincolnshire, UK

Re: 1954 18S preservation project (with lots of pictures)

Postby Pharisee » Thu Nov 14, 2019 8:02 pm

cfaber wrote:
He also mentions that you need the different rockers for that change. Is this the case? My concern was in Ken's instructions he didn't mention "turn the engine counter clockwise or clockwise" on the inline cam instructions, so I'm assuming counter clockwise.


Turn the engine backwards from TDC for the inlet cam, then forwards for the exhaust cam.

Using a lightweight inlet pushrod rocker is optional, not a requisite for using the 350 timing marks. Both give a slight performance increase which is additive if you do both.
John

User avatar
Posts: 331
Joined: Mon Nov 20, 2017 5:37 am
Location: USA, Colorado

Re: 1954 18S preservation project (with lots of pictures)

Postby cfaber » Mon Nov 18, 2019 7:35 pm

Gentlemen and Ladies I submit for your consideration:

https://www.youtube.com/watch?v=tg_TkNp56oA

:D
Fix it until it's broken!

Otherwise how will
anything get done?

Member
User avatar
Posts: 1226
Joined: Mon May 01, 2017 6:32 pm
Location: Lancashire

Re: 1954 18S preservation project (with lots of pictures)

Postby spookefoote1956 » Mon Nov 18, 2019 7:45 pm

Nice one. It must be a lot lighter without the tank. :rofl: :rofl:
हरे कृष्ण हरे कृष्ण
Hail Joe Lucas ............ Prince of Darkness!
All my bikes are original........ to me!

User avatar
Posts: 331
Joined: Mon Nov 20, 2017 5:37 am
Location: USA, Colorado

Re: 1954 18S preservation project (with lots of pictures)

Postby cfaber » Mon Nov 18, 2019 10:54 pm

It's a new fuel saving strategy
Fix it until it's broken!

Otherwise how will
anything get done?

User avatar
Posts: 331
Joined: Mon Nov 20, 2017 5:37 am
Location: USA, Colorado

Re: 1954 18S preservation project (with lots of pictures)

Postby cfaber » Wed Dec 11, 2019 5:31 pm

Quick question, am I missing a spacer here?
Image
Fix it until it's broken!

Otherwise how will
anything get done?

Member
Posts: 2136
Joined: Mon Mar 24, 2014 5:44 pm
Location: Aberdeenshire

Re: 1954 18S preservation project (with lots of pictures)

Postby Mick D » Wed Dec 11, 2019 5:48 pm

Hi

No, the nut above the washer sets the position of the brake plate and the outer one locks it and the brake plate in position.

Regards Mick

User avatar
Posts: 331
Joined: Mon Nov 20, 2017 5:37 am
Location: USA, Colorado

Re: 1954 18S preservation project (with lots of pictures)

Postby cfaber » Wed Dec 11, 2019 5:56 pm

And the dust cover washer just flaps in the breeze?
Fix it until it's broken!

Otherwise how will
anything get done?

Member
Posts: 2136
Joined: Mon Mar 24, 2014 5:44 pm
Location: Aberdeenshire

Re: 1954 18S preservation project (with lots of pictures)

Postby Mick D » Wed Dec 11, 2019 6:04 pm

Hi

You appear to have a full width alloy hub, which is not standard for a 54 18S. In this configuration the oil seal cover is retained by a split ring, suggest you refer to manuals and lists relevant to the parts you have.

Regards Mick

User avatar
Posts: 331
Joined: Mon Nov 20, 2017 5:37 am
Location: USA, Colorado

Re: 1954 18S preservation project (with lots of pictures)

Postby cfaber » Wed Dec 11, 2019 6:12 pm

Mick D wrote:Hi

You appear to have a full width alloy hub, which is not standard for a 54 18S. In this configuration the oil seal cover is retained by a split ring, suggest you refer to manuals and lists relevant to the parts you have.

Regards Mick


So there is a split ring retaining a cover already and I'm pretty sure the PO didn't replace the hub.
Fix it until it's broken!

Otherwise how will
anything get done?

PreviousNext

Return to G80 / Model 18

Who is online

Users browsing this forum: No registered users and 14 guests