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PostPosted: Fri Sep 17, 2021 6:46 pm 
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Awesome! Great detective work Rick.

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PostPosted: Sat Sep 18, 2021 12:57 am 
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Yeah, nice sleuthing, inspector!

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PostPosted: Sat Sep 18, 2021 3:45 am 
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Good find.

You are speaking about a toothed automotive v belt correct?


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PostPosted: Sat Sep 18, 2021 4:33 am 
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Yeah toothed V Belt, Almost everything is toothed either in the inside or the outside of the belt. These were on the inside. It just cuts down on the cross section of the belt a lot. The solid belt is noticeably stiffer. Time will tell if it works long term.

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PostPosted: Sat Sep 18, 2021 5:03 am 
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Alt /water pump belt flipping over is not uncommon, when reving a slant six. That is a long span when using the passenger side alternator mount. With my 170 (which uses a slightly shorter belt) I used to carry 3 spares. Once it flips, it's done. It would usually flip just about 6800-7000 rpm. In my opinion, the easiest fix is to use the low mount driver side alt mount (if you have room).

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65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 225 nitrous
64 Valiant Signet
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PostPosted: Sat Sep 18, 2021 6:20 am 
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I thought Rick mounted his alternator on the driver side.

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PostPosted: Sat Sep 18, 2021 8:14 am 
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Yes mine is on drivers side. Pretty short spans.

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PostPosted: Sat Sep 18, 2021 9:15 am 
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Rick Covalt wrote:
Yes mine is on drivers side. Pretty short spans.

Then I would say, it is either alignment, or as you surmised, the belt itself. I would suggest you carry a spare belt, just in case. There are several different lengths possible, the odds of finding one at the track, it your vacates the engine compartment, are not the greatest.

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66 Valiant Signet 225 nitrous
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PostPosted: Sat Sep 18, 2021 10:14 pm 
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Car Model: 64 Plymouth Valiant
Could you convert to serpentine?

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PostPosted: Sun Sep 19, 2021 5:59 am 
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I always carry spare belts.

Serpentine belt would require lots of changes due to the balancer and external oil pump drive.

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PostPosted: Wed Oct 20, 2021 2:54 pm 
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Car Model: 65 Valiant 2Dr Post
Glad to say that the car had a very uneventful 2 days of racing at London last weekend, which is good. I am happy to report that the "solid" lawn mower belt worked like a charm and gave me no issues at all. I made a first pass at @ 5900 rpm as a precaution but then went ahead with my normal 62-6300 all the rest of the weekend.

The car ran 12.96, 12.83, 12.95, 13.02,13.01, 12.93 Saturday night!

Car also ran it's best ever 1/4 mile MPH- 103.0, best 1/8th mile ET- 8.06, and best 1/8 MPH 84.07

Had a great time with old friends and family! But 11 hour trips make for a long drive home! :D :D

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PostPosted: Wed Oct 20, 2021 2:59 pm 
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Congrats Rick!

Excellent work on adding lightness and consistency.


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PostPosted: Wed Oct 20, 2021 3:39 pm 
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Total awesomeness Rick!

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PostPosted: Mon Oct 25, 2021 3:21 pm 
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awsome! great to be running at the end of the season!


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