Mark Gendron wrote:
>
snip
> as long as I can drill it for a "looks only" grease nipple.
>
> If I correctly understand the current supply situation, I have two
> choices:
>
> 1. An aftermarket pump without the nipple; accepts the original pulley.
> 2. An "original-type" pump with the nipple; does not accept the original
> pulley.
>
> If I go with the first choice, does the bearing housing actually look
> like the original pump, aside from lacking the grease nipple? Does this
> pump housing have a boss that can be drilled for a non-functioning grease
> nipple for the sake of original appearance?
>
> How closely does the second choice resemble the original pump and pulley?
Mark, I have one of each lying side-by-side in my garage right now. Only
a councours judge is likely to notice the difference. But, to my eye,
there are three main differences in appearance:
1. early model has a nut holding the pulley on, late model has
pressed-on pulley and the shaft is flush with the front of the pulley.
2. the pump body or base casting for the early model has a "protrusion"
which would normally be drilled & tapped for the grease zerk (as
mentioned, mine doesn't have the zerk, but it was cast for it). The
later model (in my garage, maybe not on others) does not have this and
could not be made to look original. The pump "base" casting appears
otherwise identical.
3. the early style pulley has a slightly more textured, unfinished cast
look on the "balance weight" area at the front of the pulley, while the
later appears to have been turned to finish and is smoother in that
area.
I think you will probably find the grease zerk (or at the very least, a
casting for it) on any and all pumps that also have a bolt-on pulley.
Those are the two main exterior design characteristics of the early
model and seem to pretty much go together.
It sounds like you already have a source for each, that's great! I've
heard it's getting difficult to find the early-style pump. I think the
longer, threaded shaft is unavailable, but could probably be made up by
a machine shop, for a price.
As far as I know, the early style unit can be rebuilt using the newer
style seals and self-lubricating bearings. (Been there. Doing that.
Wearing the T-shirt!)
Certainly the "dummy" grease zerk you suggest setting up for sake of
originality is possible too, if you end up with an undrilled casting.
The next owner might curse you as a DPO when he tries to lube it, tho!
(let's set up a video camera! ;-)
Alan Myers
San Jose, Calif.
'62 TR4 CT17602L
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MZ
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