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 - Stripped bolt

The bottom bolt that bolts the housing to the back of the block will not tighten. It appears that the threads in the block are stripped as the threads on the bolt are OK.
It is possible or wise to tap this site with a larger bolt size?
Thanks.
Bill
W Chandler

I had a similar problem.
I found some metric bolts, just a bit longer. The threads toward the back of the hole were OK.
Now you must be very careful. If too long they can hit the flywheel.

I have a bunch left and I can drop them in the mail if You want.

If you cant do this, there are metric helicoils that are available. You will need to pull the tranny, but that is a better, more correct, and permanent fix.

Jim B.
JA Benjamin

I had the same problem and I put in Helicoils. PJ
PJ Jennings

I agree with PJ and with Jim's last statement "that is a better, more correct, and permanent fix." You can get a helicoil kit from someone like Fasenall (which should be somewhere close to you), If not, try McMaster-Carr https://www.mcmaster.com/#
Or MSC Direct https://www.mscdirect.com/webapp/wcs/stores/servlet/HomeView?storeId=10054&catalogId=10001

Be sure that you get the correct metric thread as the XPAG engine requires a fine metric thread. See the chart, Fasteners for XPAG/XPEG Engines at http://userwebs.donobi.net/sufuelpumps/othertecharticles.html
Cheers,
D.W. DuBois

Just epoxy a few really strong magnets into place. Yep.... Magnets. Three of 'em.
MAndrus

Thank you all for your comments!
I did not know about the helicoil, but just watched a video so now I understand very clearly. That would clearly be the best fix, but would need the tranny out.
I think I will try a slightly longer bolt. It is an 8 mm 100 thread count and I have source for them.
Can I ask JA Benjamin the exact length of you bolts from the undersurface of the head to the tip? Thanks for the offer to mail one, but let me try this first.
Bill Chandler
W Chandler

Before you go get Helicoils, chack out a product call (amongst other names) Keen-serts. They are a hardened steel insert. They are especially useful in aluminum, but will work in other metals as well.
http://www.aircraftfast.com/keensert-inserts.htm
Lew Palmer

Bill, the (fine thread) 8x1 bolt has a thread pitch of 1mm. The more common 8x1.5 bolt has a thread pitch of 1.5mm. Home Depot generally carries a number of 8x1 bolts in their cabinet. Bud
Bud Krueger

Bill,

We had the same problem. Until we were ready to make a permanent threaded fix, I installed slightly longer 8X1 mm bolts as discussed along with an epoxy thread repair compound (clean the holes carefully). So far so good.

Better living through chemistry. :-)

Regards,

Bill


---------------------------------------------------------------------------------------------------------------------------------------------------------------------------
WHTroyer

Sorry it took me so long.
My bolts disappeared. They are somewhere but I have been selling off all my tools, in preparation for moving to a condo, and I must have miss filed them,
I just found the receipt.

M8X1mm 35 mm under head.
McMasters # 91180A539.

Jim B.
JA Benjamin

Do you mean the bolts that go in to the aluminum oil pan? I just completed that job. The pan has to be pulled to put in the helicoils. At the same time we fixed the front seal (the problem was a worn pulley, replaced with a new B&G unit). It was actually not that bad of a job. The rear cork seal was a bit tricky. New bolts and helicoils came from McMaster Carr. It was nice to fix that oil leak.

Jim
J Barry

This thread was discussed between 04/06/2017 and 05/06/2017

MG TD TF 1500 index

This thread is from the archives. Join the live MG TD TF 1500 BBS now