Good morning to all:
I've got a few questions and hope I'm not
plowing up old ground. If there are better places
to find the answers, you won't hurt my feelings
by directing me to other sources. It's not my
intent to waste your time going over stuff that's
been dicussed already. Here goes:
1. There is listed in the Parts Interchange book
the GM 1064AD22500652 fan blade for GM
diesel cars. Anyone using this? If so, what is
the impression of its performance? Worth doing?
2. Related to question 1, there is no doubt that
cooling system issues are a "hot" topic, and
fans, fan clutches, and their replacement, care
and feeding generate a lot of interest. My
question is, outside of noise (which is of no
concern to me), or fractional horsepower
reduction (I'm not going for time trials at
Bonneville), why would continuing to use a
clutch with the fan make sense, especially
considering this appears to be such a
problematic component? What specific cooling
issues are solved by using the clutch, and/or
what cooling issues would be compromised by
using a solid/direct fan drive? I'm not poking at
the hive -- just curious and willing to learn at the
knees of the masters.
3. The GMC WS Tech Notes #17, March 1997
refers to a kit to rebuild the steering shaft lower
u-joint. The only reference is "Precision
Universal Kit #338". How does one find this kit?
Is the vendor PRECISION or PRECISION
UNIVERSAL? From whom can it be purchased?
4. The same issue of GMC WS T/N mentions a
technique to restore the surface of the spline
shaft coating with "bisphenol-a epoxy resin and
hardener". To what commercial product does
this refer? What do I look for or ask for at my
local bisphenol-a epoxy resin store? Also, has
anybody on the mailing list tried this recoating
procedure, and if so, with what results? Worth
trying (considering that shaft is a +/- $200 part)?
5. While knuckle-dragging at the local auto
recycling center a couple of weekends ago, I
was looking for the Cadillac parts required for
the rear disc brake modification. I found no
Eldorados, but did find several '77-'78 Sevilles
with rear disc brakes. Are there possibilities
with these components (backing plates, rotors,
calipers, e-brake, etc.), or are the Eldo parts
the only possibility? I did a few crude
measurements and thought it might have
potential. I'm not looking for a short cut or trying
to diminish the thorough work done by others
on the topic -- just trying to determine the limits
and fill in any gaps in the range of possibilities.
6. Related to brakes (I am terrified of two things
- -- fire and not being able to stop), during the
same junkyard session, I was trying to find and
identify the "power master" master cylinder
setup. I didn't find anything that looked like the
pictures or what I saw on Steve Ferguson's
coach, but I did find a master cylinder setup
with hydaulic lines running to the power
steering pump and with no vacuum booster (at
least that I could see). It was on an '85
Chevrolet Caprice Classic station wagon. Is this
a variation of the power master or a different
evolutionary strain, and is it something worth
looking into for the GMC?
Thanks for any and all answers or pointers to
different resources.
Cheers!
Toby Maki
;73 Glacier 230
I've got a few questions and hope I'm not
plowing up old ground. If there are better places
to find the answers, you won't hurt my feelings
by directing me to other sources. It's not my
intent to waste your time going over stuff that's
been dicussed already. Here goes:
1. There is listed in the Parts Interchange book
the GM 1064AD22500652 fan blade for GM
diesel cars. Anyone using this? If so, what is
the impression of its performance? Worth doing?
2. Related to question 1, there is no doubt that
cooling system issues are a "hot" topic, and
fans, fan clutches, and their replacement, care
and feeding generate a lot of interest. My
question is, outside of noise (which is of no
concern to me), or fractional horsepower
reduction (I'm not going for time trials at
Bonneville), why would continuing to use a
clutch with the fan make sense, especially
considering this appears to be such a
problematic component? What specific cooling
issues are solved by using the clutch, and/or
what cooling issues would be compromised by
using a solid/direct fan drive? I'm not poking at
the hive -- just curious and willing to learn at the
knees of the masters.
3. The GMC WS Tech Notes #17, March 1997
refers to a kit to rebuild the steering shaft lower
u-joint. The only reference is "Precision
Universal Kit #338". How does one find this kit?
Is the vendor PRECISION or PRECISION
UNIVERSAL? From whom can it be purchased?
4. The same issue of GMC WS T/N mentions a
technique to restore the surface of the spline
shaft coating with "bisphenol-a epoxy resin and
hardener". To what commercial product does
this refer? What do I look for or ask for at my
local bisphenol-a epoxy resin store? Also, has
anybody on the mailing list tried this recoating
procedure, and if so, with what results? Worth
trying (considering that shaft is a +/- $200 part)?
5. While knuckle-dragging at the local auto
recycling center a couple of weekends ago, I
was looking for the Cadillac parts required for
the rear disc brake modification. I found no
Eldorados, but did find several '77-'78 Sevilles
with rear disc brakes. Are there possibilities
with these components (backing plates, rotors,
calipers, e-brake, etc.), or are the Eldo parts
the only possibility? I did a few crude
measurements and thought it might have
potential. I'm not looking for a short cut or trying
to diminish the thorough work done by others
on the topic -- just trying to determine the limits
and fill in any gaps in the range of possibilities.
6. Related to brakes (I am terrified of two things
- -- fire and not being able to stop), during the
same junkyard session, I was trying to find and
identify the "power master" master cylinder
setup. I didn't find anything that looked like the
pictures or what I saw on Steve Ferguson's
coach, but I did find a master cylinder setup
with hydaulic lines running to the power
steering pump and with no vacuum booster (at
least that I could see). It was on an '85
Chevrolet Caprice Classic station wagon. Is this
a variation of the power master or a different
evolutionary strain, and is it something worth
looking into for the GMC?
Thanks for any and all answers or pointers to
different resources.
Cheers!
Toby Maki
;73 Glacier 230
