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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 Fan Belt Source

I have read something about using the original fan belt, as compared with a replacement belt. Seems the original belt is notched on the inside? Mine is starting to fray and I don't want to push the envelope with it. Which is best and should I trust the usual sources....Moss, etc.?
Frank Bice

NAPA has a belt that will fit better NAPA #25-22392. Dave DuBois site will give you all the info. Thanks Dave.
http://homepages.donobi.net/sufuelpumps/Other_Subjects/Electrical/TD/Keep_Your_Belts_Loose.pdf
Keep the belt loose to save the dynamo bearings. It is a segmented belt as flexes better than the solid originals.
Rod.
Rod Jones

To add just a bit to what Rod already wrote, the fan belt for the TD is actually a truck/bus belt, very wide and thick, which makes it very stiff. Just running the belt very loose still puts a strain on the generator rear bushing, thus the requirement for a segmented belt. There are two suggested belt in the article, the NAPA belt that is segmented on the inside edge and the Goodyear belt that has the segments on the outside. I think that the Goodyear belt is the more flexible of the two, although I have had good success with the NAPA belt.

Since a generator doesn't produce the back EMF that a alternator does, which requires a very tight belt to keep it from slipping, the belt driving the generator doesn't need to be real tight to operate correctly. Running with the TD belt loose enough to be depressed 1 inch between the water pump and generator pulleys will keep everything rotating correctly and not put a strain on the rear bushing of the generator.

Years ago, I needed a new belt for the TD when we were at GoF West in Southern California. Al Moss had a spare belt with him and graciously gave it to me so we could get home. Back in those days, either the segmented belts were not readily available or they were considered not necessary, so the belt Al gave me was considered fine. I went on fat, dumb and happy with the non segmented belt on our TD and couldn't figure out why I kept destroying the rear bushing in our generator. I finally came to the conclusion that the stiff belt was the cause and searched for a segmented belt. Since changing to that style belt, I have not needed to replace the generator rear bushing.
Cheers - Dave
D W DuBois

Gotta agree with Dave and Rod !!!!!!!!!!!

SPW
Steve Wincze

Although I've since tightened it a bit, after installing the head and all accessories recently I had the segmented NAPA belt recommended by Dave unintentionally real loose - maybe 1-1/2 to 2 inches of depression between water pump and generator. Ran over 200 miles before taking out some of the slop with no problem. Good generator output, no belt screaming and it never came off. I'm a diehard loosey-goosey guy. Jud
J K Chapin

I just bought this one on Amazon and it
fits very well.
Don't know if the price was good.
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Goodyear 22394 Gatorback V-Belt
by Goodyear Engineered Products
Be the first to review this item
Peter
________________________________________
Price: $25.76 & FREE SHIPPING
Note: Not eligible for Amazon Prime.
Only 1 left in stock.
Ships from and sold by Shop Eddies.
• The low elongation properties assure uniform performance over the life of the belt
• Fiber reinforced, rubber helial cogs offer greater flexibility that reduces cracking and fatigue in the cushion section
• Rubber edges maintain positive, no-slip contact with pulley grooves for reliable energy transfer
Peter Dahlquist

Many thanks, guys. I believe I have located the NAPA belt.....will confirm tomorrow.
Frank Bice

This thread was discussed between 21/10/2014 and 23/10/2014

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