>Greg: Good Research! Maybe you could share more about the 'harmonic
>balancer', what it is, what it looks likem how it mounts to the crank.
>What it costs, as Brian and I seem to be dedicated to eliminating the
>original metal fan and its problems.
>
>Sherman
>Sherman Taffel
>Columbia MD
>http://members.home.net/staffel/triumph1.html
I have a "non" stock TR engine. It's balanced, overbored (+.040),
and has a hot cam (BFE's autocross cam). The flywheel's been
lighteded the head has been shaved. I estimate my compression to be
somewhere around 10x1. The car is a summertime daily driver and
occasionally is driven in the winter, when it's not too sloppy out.
Last year, I noticed my fan pedestal had a bit of a wobble at idle.
After determining that it wasn't a broken crank shaft (whew) I
decided to replace the assembly with BFE's harmonic balancer. The
kit comes with the lower pulley/harmonic balancer, a pulley for the
water pump, new seal for the timing chain cover, a special washer,
bolt, and vee belt. What I needed to get was: a gasket for the
timing chain cover and pulley to replace the Triumph pulley
on the Ford alternator in the car. I also had to find a good fan to
replace the original. After trial and error I settled on a Permacool
14" fan that seems to be doing an excellent job.
The BFE harmonic balancer is not cheap (~$350.00). It's a fix that
would be recommended if you were going to drive your car as hard I
do from time to time or, if you planned to race the car. I believe
there are cheaper fixes for the problem. I think people just lop or
leave off the pedestal. Others have adapted harmonic balancers from
other cars.
To describe the the HB, it is two disks of steel abou 8" dia with
rubber sandwiched between them. This is bolted to a machined pulley
of (I think aluminum) and the piece that fits to the crank through
the timing chain cover.
I'm entirely happy with the set-up. The engine never ran so
smoothly. I still have some fiddling to do with the alternator to
get it to line up with the other pulleys (the belt squeals abit from
time to time).
I'll also be happy to send you pix of how thw fan was mounted, if
you're interested
Greg Petrolati Champaign, Illinois 1962 TR4 (CT4852L)
That's not a leak... My car's just marking its territory...
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