Jump to content

Restoration 4 - Matchless G3 Panel Tank


Recommended Posts

  • Replies 593
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

Hi Ron, though I’d share with you an image of the original fuel tank, you can still see it attached to the fuel tap🙈😂

Hi All. After recently completing my James ML restoration idle hands set in again. I said to myself no more projects, but after the opportunity of an early Matchless G3 panel tank came up I

Looks good Ron, another job well done! I just had to share these photos, yet another gift to myself! I am super happy about finding this little gem. The lense is damaged but I am sure that can be

Posted Images

If you expand the pictures at Feked, they have two grooves. I know the firm quite well as they're on my doorstep and I often go there ........There is always free coffee and doughnuts too!!  Ron

Link to post
Share on other sites

As promised, an update on the build.......

The barrel has now come back after boring and I treated myself to some more vapour blasting including cleaning up the head. I have run with the G3L rocker box as it’s tuck up under the tank but I still have the blind bushes to drift out (watch this space).

Forging forward many of the control cables are fitted and things are really starting to take shape.

I currently am having trouble getting the Gudgeon pin through the new small end bush but once rectify the barrel and piston can be fitted. 
 

The next steps are to get the the barrel on and the new valves lapped in and fitted......

 

45BD656E-1D20-45C3-AEF4-C70EB5181E03.jpeg

2A2A05CD-25BF-498B-A5A8-B535C8BD2B3A.jpeg

03012E3A-1D5A-4992-B229-3B12FBA373BB.jpeg

F7F83A77-5EF4-4E01-9092-E7146B0B3879.jpeg

4D9D390E-FFE1-4B6F-9C6C-7C1232A9DB54.jpeg

5CB0F0F6-3D76-4EAF-96CC-1119D1206D71.jpeg

FDE6FADB-B68C-4583-A2C9-95DF7B411E4D.jpeg

68DB41EB-4380-4E3F-BDDE-440F963F4E88.jpeg

A640F686-B41D-4A07-9D0C-981AC3C13E10.jpeg

  • Like 1
Link to post
Share on other sites

Steve the standards book for the exhaust stem to guide clearance is:-  At new = High.005"  Low .003" and .007" is acceptable at overhaul. The figures for the inlet are less with .005" acceptable at overhaul. Difficult to measure the bore of the guide without proper equipment. Usually you can tell by feeling the rock at the valve open position. Ideally there should be next to none.  Ron

Link to post
Share on other sites
13 hours ago, Ron said:

Steve the standards book for the exhaust stem to guide clearance is:-  At new = High.005"  Low .003" and .007" is acceptable at overhaul. The figures for the inlet are less with .005" acceptable at overhaul. Difficult to measure the bore of the guide without proper equipment. Usually you can tell by feeling the rock at the valve open position. Ideally there should be next to none.  Ron

Thanks Ron, I am not going to take any chances, I will replace both of them. I am just considering doing it myself or sending it to the shop 🤔

Link to post
Share on other sites

Hi all.

so my new valve guides and drift tools have arrived ready for replacement tomorrow. The new guides are in the freezer over night   in readiness.

Is it recommended to heat the head and current guides before removal? Or can I attempt knocking them out without heat? With the head being cast am I correct in thinking the guide and head will heat at a similar rate so adding heat for removal may not help?

Link to post
Share on other sites

I haven't changed the guides in a long time, so can't remember but I think they did not have a ridge to stop them from going in too far? do you have the special spacer under the exhaust valve spring cup? there is a manual somewhere, that says, how far to press them in. Re. removal of the old ones, it might be better to machine them out untill wafer thin, and then just pull them out, or break them, then, no material from the head will be removed, and the new guides being too loose.

Lex

Link to post
Share on other sites

Ok, the size of how much the guide should stick out is again in the Standards book, 1/2 and 5/8 , the 5/8 ofcourse, because of the special spacer, that is in my scan of the P/L above.

Cheers,

Lex

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...