Buc….check your e-mail

Buc,

I had one. Very interesting to change lower crankshaft seal down the long tube. I had a hard time doing mine, I didn’t remove the lower housing rivits. I used fiber optic light rope to see & a LONG 1/4″ extention to tap into place using the female end on the seal. Check wiith

Fergoson Poole on line for parts. I remember Joe had an upgraded seal kit for the top crankshaft seal too. Very nice guy. I can dig for what you need, send me a message & Ill copy And send, Have mucho on Mercs.

Even being in a wheel chair I can still contribute to our hobby!!

Jeff

A few rekated thoughts that may
help muddy the water. Prewar Kiekhaefers had parts list as part of owners manual. Post 1953 Kiekhaefer adopete the parts manual and parts numbering system used up to present. Post WW2 to when the
current parts system was adopted Kiekhaefer had a chart
system with part numbers with
an “M” prefix. Kiekhaefer issued a New Parts List converting the two prior part
systems to the new system as
well as revised parts manuala
which combined models made in
a series such as KF5, Mark 5
and Mark 6 as well as KE7 thru
KF7,KG7 and KG4. This can be very helpful when looking for a replacement part as Kiekhaeft often used same part
on several models or sometimes
only for one year on one model. Same part number means same part. Kiekhaefer usually
issued its own part number for
vendor supplied items such at bearings and seals, Usually these can be crossed back to
vendor part number.
The lower seal on KF5, Mark 5
ect, had a Mercury Service Tool which doubled as a stand.
I once had part of the tool
and gave it to one who worked
on the KF5 series.
opinion with no cah value
Louis

Geacase is a scaled down version of the gearcases used
on KE4/Mark 7, KE7,KF7,KG7 &
KG4, If you can understand one you can understand them all,
Gear case upper seal is 4990
and rear seak us 4923
I have noticed online vendors
either do not have common seals
or charge $$$ plus S&H
I once worked at an industrial supply house. They discouraged
retai customers as not worth
the time and trouble. DIY not
welcome! KF5 and Mark 5 gearcases ware easily damaged
in area of water pump cover threads…difficult to repair as it requires aluminum welding to build up metal and
precision machining to face
and thread… only done on
free to a good home motors,
and only if all else is well,
Opinion with no cash value
Louis
Manuals help with understandi
but,the doing is not in any
book,

The driveshaft seal Mercury Part Number is 26-21670 which crosses to 4990 commercial code
The seal pressed into water pump cartridge is 26-22058 which crosses to 4923 commercia number
The square O ring is Part Number 12-22776 for which I have no cross to commercial number. It may or may not be
a special or no longer current
I have some used parts and even a couple NOS water pump
cartridges.
Rule of thumb is direct drive
motors use grease and shift motrs use oil… with exceptions. I have been told
that some will use grease instead of oil if shaft seals
are worn out or if shaft is rusted or groove and even a new seal will soon
or water.
I have a KF3 gear case assembly job sitting on bench,
Need to press the $$$ needle bearing out of damaged case and press the into a KF5 case
(same except water intake slits) Changinng cases cases may mean shim swaping to adjust gear lash,
I have been sitting on this for some time. Last of old style powerhead mated to first
of the fulley jeweled lower
units. A $50 bargain that was
completely worn out.
Louis