Kevin,
I have a car with the exact same tinny noise. This was a junkyard dog,
resurrected from the dead. The block has some scale blockage, with hot spots
that require me to run an oil cooler using Mobil 1. It fries dino oil
rapidly, and a rocker feed kit to extend rocker life. I put a new BPNW
camshaft in it before I ever got it started, complete with new chain etc.,
and I've replaced the water pump. I've always worried about it, but it runs
so good I keep it on the road. This car has 15,000 miles with this noise
under the hood. I'd be curious if it is the chain rubbing on the cover, or
maybe the tensioner. Any one else have the same problem?
Bob Kramer
TR4, TR4A, TR6, 2.5 Saloon
rgk@flash.net
> Greetings fellow enthusiasts,
> I just got done with several repairs on a '76 TR6 that I just
> got on the road. This has 72,000 miles on it. It has a noise coming out
> of the engine area that has a metalic, or tinny sound. I thought at
> first it was an exhaust clamp underneath that was touching the frame and
> causing a vibration, but after moving it, the noise persisted. I think
> it may be the timing chain slapping against the cover. It only makes the
> noise when the motor has no load (not accelerating or decelerating) and
> about 2,000 RPM on the tach. Several questions arise, if this could be
> the problem. Will a timing chain have that much stretch so as to be able
> to touch the cover? Is this normal or expected with the given mileage?
> How long a job am I looking at to change out the chain (and gears, I
> suppose)?And of course the big question.....how much would the parts
> cost if it's chain, gears and gasket?
> I thank you in advance for any assistance,
> Kevin Thompson
> CF55588U (and O next winter)
>
>
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