Oil pipes, routing and whats left...

Information relating to the Matchless G80 or AJS Model 18 500cc Heavyweight.
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cfaber
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Oil pipes, routing and whats left...

Post by cfaber »

Hi folks,

I'm hoping someone can help me identify what's missing here as well as correct fitting and routing for the oiling system. Here is what I have:

Image

What I think I have:

O Union to return/feed? What does this connect to?
X Head feed pipe (other end is on the head with rubber pipe)
X Unknown (Oil return?)
X Unknown (Oil feed?)
X Oil tank breather pipe? (where does this attach?)
X Unknown (Check valve, union to copper pipe) this fits on the drive side, where does this route?

The unmarked pipe appears to be another feed/return pipe with some kind of BA thread, but it's too small to actually fit the crank case ports.

Image
Which does the O union connect into? Which is feed, which is return?

I'm clearly missing stuff here and I thought I had finally obtained all the needed parts, but sadly I'm still along way off from being able to run this thing :cry:
Fix it until it's broken!

Otherwise how will
anything get done?
cbranni
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Re: Oil pipes, routing and whats left...

Post by cbranni »

I took some photos when I pulled my bike apart, I hope they are of some use.
These are the tank connections.
Image
Oil connection engine side
Image
Another view of engine side connections
Image
View of flow and return pipes oil tank.
Image
Last edited by cbranni on Fri Mar 29, 2019 8:44 am, edited 2 times in total.
only dead fish go with the flow
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Rob Harknett
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Re: Oil pipes, routing and whats left...

Post by Rob Harknett »

It may help to know the year and model of your bike. heres some pictures.
Ashampoo_Snap_27 March 2019_18h32m42s_003_.jpg
Ashampoo_Snap_27 March 2019_18h32m17s_002_.jpg
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Rob Harknett
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Re: Oil pipes, routing and whats left...

Post by Rob Harknett »

Ashampoo_Snap_27 March 2019_18h34m05s_005_.jpg
Another pic.
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cfaber
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Re: Oil pipes, routing and whats left...

Post by cfaber »

Thanks guys,

How about the other side? I've seen quiet a few pictures of the pump side, but what about the drive side? Where does that pipe route to?

ALso this is to a '54 18S
Fix it until it's broken!

Otherwise how will
anything get done?
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cfaber
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Re: Oil pipes, routing and whats left...

Post by cfaber »

http://www.jampot.com/forum/viewtopic.p ... ve#p152723

Thanks Clive! That answers one question!
Fix it until it's broken!

Otherwise how will
anything get done?
Mick D
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Re: Oil pipes, routing and whats left...

Post by Mick D »

cfaber wrote:what about the drive side? Where does that pipe route to?
Here's the crank case breather on a 61 G3, (it's pointing up for convenience during restoration - it's normal position is pointing down).
Crank Case Breather.png
Regards Mick
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cfaber
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Re: Oil pipes, routing and whats left...

Post by cfaber »

Mick D wrote:
cfaber wrote:what about the drive side? Where does that pipe route to?
Here's the crank case breather on a 61 G3, (it's pointing up for convenience during restoration - it's normal position is pointing down).
Crank Case Breather.png
Regards Mick
Thanks so much Mick! I think this is the first and only time I've seen a picture of the vent pipe!
Fix it until it's broken!

Otherwise how will
anything get done?
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cfaber
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Re: Oil pipes, routing and whats left...

Post by cfaber »

How about the what I think is the oil tank breather pipe? Does anyone know where it should attach and how?
Fix it until it's broken!

Otherwise how will
anything get done?
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dave16mct
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Re: Oil pipes, routing and whats left...

Post by dave16mct »

Pag 119 of the Pitmans Book of the AJS. Shows the metal pipe fixed to the engine plate. It points towards the rear chain. The rubber tube connects it to the oiltank breather.
Dave.
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