From: Catpusher_at_aol.com
The most common
leak is where the filler neck goes into the main body. I discovered a leak there
a short time before the start of a race. I asked a very busy Brian Fuerstenau
from Group 44 for advice, and he lent a torch and solder to me; and told me
that I could do it in place. It worked, and I have fixed more than one that
way. You need to drain the water, get
it very clean, and use the correct flux. If you get it too hot and melt too
much, you had to pull the critter anyway.
From: Randall
Young < ryoung_at_NAVCOMTECH.COM >
…but my
experience has been that 5 years is not often enough in my TR3A. TR3s have a particular weak spot in the soft
aluminum thermostat housing bolted to the cast iron head. Running antifreeze
for 5 years allowed a noticeable amount of galvanic corrosion around the inside
edge of my Tstat housing. Every 2 years
seems to be working OK. Of course, this may also depend on the brand of
antifreeze used, since it's not the glycol itself that provides corrosion
protection but the additives in it. I've
been using either Prestone or Zerex, whichever is on sale.
From: "Fred
Thomas" <vafred_at_erols.com>
On the front of the w/p is a "C" clip holding the bearings in place,
remove this clip, turn your w/p over with the impellar facing up and place in a
vise, using a good size punch so as not to distort the shaft, drive the shaft
out the front of the housing, very easy takes about 30 seconds, if you have a
press use a large bolt to rest on the shaft and then press it out.,
reinstalling, place water thrower rubber bush on shaft, place the lower
interior "c" clip on the shaft then the abutment washer, 1 bearing
facing up, spacer, 2nd bearing facing inward, load the inside space of the 2
bearings (facing each other) with grease and press into housing, reinstall the
outter "C" clip, insert new rear bushing/seal in impellar turn the
W/P over and press the impellar onto shaft, you want .085 clearence between
impellar and housing.
After installing the
water pump, did you run the motor dry with no coolant for about a minute? By running the engine with no coolant, the
pump has a chance to seat into the graphite seal. If you don't seat the pump properly it may leak after installation.