> What happened to the remote side mounted pump?
     > ...Chrissi
     >

     Sold out. Got too expensive for most people anyway.
     In theory it is better to have the pump mounted down low. If the coolant
     gets low then it still circulates. This apparently is not enough incentive to
     pay $300 for a water pump. IMHO long term the RX8 engine will take over.

We had some helpful communication with Shawn at Unorthodox Racing about pulleys.
We have a Racing Beat (I think) smaller dual V-belt pully on the eccentric shaft, I wrote to ask if we could get a custom pully that was an inch further out. His response was to go to their newer
model serpentine belt version because it is two piece and no problem to make whatever size spacer and put the pully out wherever we need it (to clear our early model front cover on our GEN 3
engine).
Great idea but a new can of worms for us getting all new pullys. Was the serpentine version of the water pump not reverse rotation run off the backside of the belt?
Shawn basically said that V-belts are not as safe at high speeds anyway.
We would need a water pump and alternator pully suited for front side of belt use and what is the availability of belts in incremental lengths?
How critical is alignment and tension on a serpentine belt?
It was an experimental supercharger add-on that brought Dave Domeier's Eggenfeller Sube powered RV down due to ingesting a belt.
...Chrissi

www.CozyGirrrl.com
Cozy Mk-IV RG 13B-turbo
Plans #957 Chapter? big pieces done, details, details

     Yes 3rd gen water pump is reverse rotation as I recall. I suggested
turning
     the early 2nd gen V belt e-shaft pulley 180 degrees to get the belt
away from the front
     cover if you are using the remote water pump. You will also have to
space the
     side maounted alternator back. Forward in the case of a pusher.

What is the interface between the pully and the e-shaft? Spline & taper?
...Chrissi

     Four equally spaced bolts on the 2nd gen.

OK, we have one big bolt in the center
...Chrissi

www.CozyGirrrl.com
Cozy Mk-IV RG 13B-turbo
Plans #957 Chapter? big pieces done, details, details

That is the hub for the pulley on the 2nd gen. That part is held on with
a simple 30 mm bore and key way. Just happened to have one sitting
on my desk as a paper weight. The pilot bore for the pulley is 50 mm.

Checking the third gen shop manual the part looks exactly the same.
Page C75

Paul Lamar

The main serpentine pulley on my Cosmo fits only in one position. The holes
look symmetric, but they are not. It has something to do with the timing
marks I believe?
Bulent

Chrissi, are you trying to use a serpentine belt with a side mounted water
pump?

Paul Lamar
 
The Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2004 All world wide rights reserved.