If the belt drive is a Titan product it should be ok. A lot of the hi-lift
roller rockers that you say (I think including the APT ones) are Titan (you
can see the writing on the rockers).
I have a belt drive kit on my Sprite and even with the vernier adjustment (I
think mine is pin and peg?) the cam could not be exactly dialed in where it
wanted to be and I had a choice of slight advance or slight retard.
When the engine nexts gets re-build, which isn't soon (I hope) I may consider
going back to chain drive because the breather on the belt drive is
inadequate - course if I get the block drilled where it doesn't have a fuel
pump I can run a breather off their.
Nick
In a message dated 11/01/02 17:33:12 Pacific Standard Time,
pixelsmith@gerardsgarage.com writes:
> Anyone with experience with gilmer belt drive type timing gears, please
> contact me on or off list with your experience. I have a fairly new used
> one (similar to the one below) that I'm contemplating using on a my 948
> race built engine. My concern is that I can see by the inside cover that
> the belt walked off the end of the cam gear, making contact with the cover.
> There is a lip only on the rearside of the gear. Is there a problem with
> this one or is this typical? I also have a new set of duplex gears and
> chain I can use, so I can go either way. One advantage of the belt drive is
> the cam gear as adjustable and it will be used with the VP7 cam.
>
> see pic below.
>
> http://www.aptfast.com/Images_Parts/Engine_Components/A_Components/BD-05.jpg
>
> Gerard
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