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MG TD TF 1500 - TF Air Filters

Gentlemen...I am asking for help again on front covers for original TF air filters.
As others have tried also to no avail finding replacement "front" covers for these "pancake filters" seems to be impossible.
Not being able to find them I have twice tried to contact Brown & Gammons, in the UK VERY close to where I grew up and lived; but, they don't seem to want to respond in giving me any information on the whole replacement units that they sell. Thus I'm going to try to make a set for myself by making a pattern and then pressing them out on my 12 ton press. To that end would one of you who does have an original TF please show me a photo of the front of these pancake filters and confirm that the diamensions are as follows:
OD 6-5/16"
Thickness 1-1/4"
Mounting holes 2-1/2Many thanks in advace for your help
Best regards
Rod Murray 54TF
Rod Murray 54TF 3006

OD yes.
Thickness, yes (internal filter thickness).
Holes -determined by the carbies, looks about right but being on a diagonal surface they will need to be spaced slightly further apart on the front cover.

Was contact by phone or email? A lot of businesses really don't have the time to go through and answer all their emails.

Attached a pic from the last time I had mine apart. I find the little bike spanner is very handy for these (and a lot of other TF bolts).

Matthew.


M Magilton

Looking at the disassembled filters, and knowing from others what a PITA it is to remove them on a TF, has anyone thought of replacing the bolts with a threaded stud and putting a thin nut on the front? It seems like that could provide more room for fingers and wrenches between the filter covers and the bonnet sides.
Jack Long

Rod, if it would make life easier for you I can send either a front or rear or both air cleaners for you to copy. You can then send them back at your convenience. It looks like my TF 1500 is going to be a long term project and I will not need the air cleaners for some time.
Cheers, Hugh
H.D. Pite

Gentlemen: thank you for the replies.
Matthew- the contacts were via email....per their "Contact us" on the website...No response is bad form....
Hugh- I will take you up on your offer of a temporary loan of a front cover and I will contact you off line. I won't need it 'til spring next year as my 54 TF project has also been a "long term" project ever since I started it:) And still is!
Best regards to all.
Rod
Rod Murray 54TF 3006

Jack,
What makes it a PITA is getting a wrench around a hex head bolt. I was able to source 5/16 BSF allen socket-head-cap-screws (SHCS) from British Tools and Fasteners, which makes the job pretty simple:
http://www.britishfasteners.com/index.php/products/shcs-bsf-516-22-x-1-12-2270.
At the time they were out of stock on ¾” which is the length of the current bolts. So, I cut them down from 1 ½”, which as it turns out was okay, because I found that making the ends more pointed helps in getting them positioned during installation. (I was fortunate enough to find a 5/16 BSF nut to chase the thread back off after cutting them.)
Safety? Fast?
Scott Ashworth - '54 TF



S. R. Ashworth

Why not use MGA filters and 1) Cut the screens to size and 2) indent the bolt holes so that the filters will sit at the correct angle to the side-hood. Check with Scarborough Faire for ones for an MGA.
David Werblow

>Thus I'm going to try to make a set for myself by making a pattern and then pressing them out on my 12 ton press.
>

I may have more machining tools than you, but if I were going to make a set I would fabricate them in the following way.

I am assuming the cover is to the right on Matthew's post.

I would machine two cups with holes in them for the mounting bolts. Proper ID, and depth. OD about 2 mm larger than ID and with a 1 mm deep step 1 mm smaller than the nominal OD. They would have a rolled ID edge to match the picture.

Using a band saw cut out a round disc, some what larger than needed. Drill two holes that are nice fits on the step diameter of the cups.

Braze/weld in the cups into the disc. The steps make them self locating.

Make a fixture to secure the part to, using the two wells, which are now bosses, that will clamp or chuck up on the lathe. Turn the OD. (twice the thickness of the metal undersized.
(Could be wood)

Cut strips of the metal the proper width for the flange, and long enough to wrap around the disc.

Braze or weld the strips to the disc to form the flange.

Remount on the lathe and file the corners round.

While I have a 12 ton hydraulic press, I know I could do it this way in much less time than making dies and with greater certainty of success.

But I may just have more equipment than you have and I well know that if all you have is a hammer, you drive nails.


Jim B.
JA Benjamin

Jim:
you are the second person to recommend a process such as you describe above (thanks also to George Raham)and I think that I will try your process first then if that fails borrow Hugh's cover for a pattern.

david- if all else fails then the MGA units will be my backstop.
Thanks
Rod
Rod Murray 54TF 3006

This thread was discussed between 30/07/2013 and 01/08/2013

MG TD TF 1500 index

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