MG-Cars.info

Welcome to our Site for MG, Triumph and Austin-Healey Car Information.

Parts

MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG TD TF 1500 - TF Radiator Cap

I am in immediate need of a radiator cap for my 1954 TF. If anyone has one I might buy, or knows of a source, please let me know.

Appreciatively,

Jerry
Jerry Chandler 1951 TD

Found mine at NAPA...I think it calls for a 4 lb.. but I'm running a 6 lb myself. It's good if you can take the old cap in as there are many neck configerations.
MG LaVerne


LaVerne,

Thanks for that solid tip! I'll scoot over to a NAPA store on Monday.

Jerry
Jerry Chandler 1951 TD

Jerry, please post the NAPA part number if you find it. Bud
Bud Krueger


Bud,

Will do!

Jerry

Jerry Chandler 1951 TD

Hi guys
I have one right here. NAPA 703-1410 for the four pounder. Made in good old Mexico.

Tom
'54 TF
T Norby

Jerry,

The 'neck' depth of the TF radiator's area where the
cap is affixed is longer compared to some other vehicles
using the 4lbs caps.If you buy a cap which is too short
in length,the working spring pressure can then be non existent.
Just an alert.

Cheers
Rob Grantham
TF3719("Aramis"),TF9177(Athos").
R GRANTHAM

I just compared the height profile to the old crusty cap I replaced. The NAPA cap was exactly the same in every dimension.

Tom
T Norby

Whoops! Ah, these senior moments -- I'm not looking for a 4# TF cap. I'm looking for a 4# MGB cap. I've installed an MGB expansion tank in Lazarus and I want to find a 4# cap to fit it. The cap that I'm using now has a flip-up pressure release handle. When it gets pushed down it's a 7# cap. Way too much, but I want to try a 4#'er for summer parades. Bud

Bud Krueger

I think Stant only makes caps from 16 lbs and up now. I know the old Fords used a 4 lb cap, available through antique Ford restoration parts dealers, but I'm also sure they are to big in diameter for an MG rad. 7 lb is about as low I think you'll get new. Ebay might be your best bet. PJ
Paul S Jennings

Googled it. 4# lever cap its way from Summit Racing. Bud
Bud Krueger


Fellows,

I bought the NAPA part # 703-1696 for a grand total of $5.45 U.S. They did not have anything else any closer that might work when I went in their closest store. Obviously, there was no part # 703-1410 that Tom Norby found, rated at 4 pounds. The one I bought is a 7 pound cap I was probably too anxious to replace my old cap that had lost most all of the gasket protection. The one I bought's neck - the spiral coil attached to the inside of the cap - is about a half-inch shorter.

Could someone educate me as to how dangerous and/or inefficient this new cap might be? I assume the engine might even run to a hotter temperature and increase the pressure too much.

Thanks,

Jerry

Jerry Chandler 1951 TD

Jerry
Will this help? Can't have been more than 3 years ago.
Temp on my engine perfect with this cap.

Tom
'54 TF

T Norby



Tom Norby,

I will call NAPA store/stores today to see if I can still obtain the part # you were kind enough to provide, along with the barcode from your image. If obtainable, I hope they will exchange it for the one I just purchased.

I'll let you know if I am successful.

Many thanks,

Jerry

Jerry Chandler 1951 TD

Bud, I'm curious as to the color on your car. Is that Autumn Red? PJ
Paul S Jennings

Jerry if the length isn't correct it may be next to worthless on the car. Even if it fits the lugs, if it doesn't compress against the inner surface of the tank, there would be no seal and no pressure. When the coolant warms up it will simply flow out of the over flow tube.

MG LaVerne

Indeed it is, PJ. I found it on the back side of the fuel tank. Apparently the car was repainted to white by the original selling dealer. But, they didn't disassemble the car before painting it. I was able to have the color reproduced by Sherwin-Williams. Bud
Bud Krueger



Tom Norby - I found one! Only two available in Memphis - at NAPA's national distribution center's attached store. It took an hour and forty minutes due to a sortation and pick malfunction.

LaVerne - When I saw that discrepancy on the cap I initially purchased, it gave me pause for concern. This 703-1410 is identical to the cap I am replacing.

Again, thanks to you both and all the other comments.

Jerry

Jerry Chandler 1951 TD

This thread was discussed between 30/03/2014 and 02/04/2014

MG TD TF 1500 index

This thread is from the archives. Join this live forum now