Re: Timing Chain Question

[Don Dulmage <big-d@xxxxxxxxxxxx>]

Timing chain. big subject. Is there anything wrong with the stock style 
chain? is the first  question. No if we are talking 50000 miles or so and 
use the iron gear but if you want a 100% full power  miles the double roller 
is much more durable. Where does it scome from you ask? It is from the truck 
division in most cases where time is money and they cant afford down time.
Double roller or true roller.? Next good question. I do not use true rollers 
as they seem to wear quickly . I believe they have too many little parts. I 
have had best luck with Cloyes or Melling stock production chains of the 
double roller but plain variety. (Three bolt stock hemi or six pack chain )
What about the multi keywayed double yoked shiny lightening hole setups we 
see so nicely packaged with 7 or nine keyways or even just three. I put them 
in the garbage if someone brings them here. I did some checking with them 
about 3 years ago. The cam timing was off a bunch on tow of them. One was 
unusable. After wasting two days trying to degree these cams in with these 
gear set ups I have run out of patience with them and now absolutley insist 
on my old standbys which are ON THE MONEY everytime. I wondered as I fooled 
with the last fancy blister packed setup here how many folks have bought 
these setups and didnt degreee them in and wonder why their engine just 
doesnt have the punch they thought it should.  I used to say of its shiny it 
will leak or wont work right. More and more even in this day and age of so 
called precision manufature I am becoming convinced that what i used to say 
in fun is now becoming the absolute truth. Such has been my experience 
anyway. Cloyes and Melling are particualr about thier stuff. So am I.
Don
----- Original Message ----- 
From: "Bill" <Y1TopBanana73@xxxxxxxxx>
To: "62-65 Mopar List" <1962to1965mopars@xxxxxxxxxx>
Sent: Thursday, December 18, 2008 8:50 AM
Subject: Timing Chain Question


> I need to ask a stupid question...what defines a timing chain as
> "double roller"? Is it that the width of the chain is 2 smaller links
> wide instead of 1, and the cam & crank sprockets have rows of teeth
> that are 2 wide instead of one?
>
> Also, what makes this setup so much better/stronger than a single chain?
>
> Thanks in advance
>
> Bill M
> 65 Coronet 500 'vert 


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