66 L79 belt question. How many?

[Gary B.]

Patrick; I think outside is where...

the captive belt should be. I believe it's the only way the alternator pulley will line up correctly. So that's why I said something is fishy about the photo in Noland's book. I agree that in the Noland photo the captive belt looks to be on the block-side set of pulleys, not the radiator side as is shown in the other photo.

Gary

[Gary B.]

Meant to say "Wayne's photo from Noland" for

the block side captive belt config. What year car is the engine in the photo you posted? It has the engine disp on the air cleaner lid, so it's not a '66 (or '67?).

Gary

[Patrick T.]

Re: Meant to say "Wayne's photo from Noland" for

Gary, the picture is of a '67 L-79 in Noland Adams Volume II on page 421. PT

[Gary B.]

'67 L79 with captive belt

Patrick,

So why doesn't that photo suggest to the revision team that two belts were used on L79 cars with no other options that influenced the number of V belts? A question with no answer perhaps.

Gary

[Patrick T.]

Re: '67 L79 with captive belt

Gary, the '67 Judging Manual states that all L-79 crankshaft and water pump pulley's shall be double groove. I don't know what the '66 JM says, but Noland says in his book the '66 and '67 L-79's were basically the same. PT

[Gary B.]

Patrick; pulleys aren't the issue

Patrick,

No on disputes the fact that '66 and '67 L79 cars w/o PS or A/C used double pulleys. The only question is was there one V belt or two, i.e., was one pulley track empty. I and others don't think so, but we can't "prove" it to everyone's satisfaction.

Gary

[Brian G.]

Based on what I've read here....

I'm leaving the 2 belts on and will see how it judges. I printed that pic from Noland's book showing the captive belt on the outside, thats how my car is configured. If I do not succeed in convincing (if necessary), then I'll take the point hit and go from there. It appears to be worth 4 and 4 for a total of 8pts. Hopefully would get at least some credit.

Thanks, Brian

[Gary B.]

Brian; please let us know how it judges

Are you talking about the National in Boston this summer?

[Mark G.]

(Message Deleted by Poster)

Message Deleted by Poster

[Jean C.]

Re: 66 L79 belt question. How many?

Looking at the one belt/two belt, inner pulley/outer pulley scenario, it is agreed that the captive belt is a back up to the belt driving the alternator and water pump. Strictly from a design standpoint, on which pulley would it be best for the captive belt to run; i.e., less chance of getting kicked off the pulleys by a broken alternator belt.
Charlie

[Gary B.]

Mark, it's so small I can read anything

Is there anyway you can post a large, higher resolution image?

[Joe L.]

Re: Joe....

Brian-----

That's it.

[Mark G.]

This may be better *NM*

[Joe L.]

Re: Joe, where does GM say "two belts were used"?

Gary-----

The 1967 and subsequent P&A Catalogs are some of the places. Don't forget, these catalogs are developed using PRODUCTION information.

[Gary B.]

It looks the same to me. Can anyone else view it? *NM*