I'd be interested to hear from listees who have done an engine lifting job
for realignment:
what type of lifting mechanism was used....I'm not familiar with terms like
"bottle jack".
I've done it two ways....borrowing what looks like a six foot high horse with
a chain block and tackle. (saved a lot of set up effort) ; I've also made a
similar rig with vertical legs from 4 x 4's and triangle shaped bracing,
lifting the engine with a pair of come alongs....in each case we had to brace from
under the floor to engine bed stringers to assure a firm footing.
Another time we used automobile jacks (the type that get inserted along the
side of a car) and had a 4 x 6 laid across a pair to lift an engine....A lack
of vertical height adjustment made this a bit difficult, but it did work...
I've seen engine mounts which permit a bit of side to side adjustment and
these are nice, but what is really helpful are ones which can be adjusted in the
vertical direction once in placed on engine bed stringers, as by turning a
supporting nut...without this capability each alignment "test" means lifting the
engine, inserting a shim, dropping it, aligning with the shaft coupling and
taking feeler guage readings....this gets very time consuming....a few bucks
more on mounts saves a lot on installation costs and permits easy adjustements
in the future.
I'd guess $3BU is a good estimate for a pair of Lehmans....
Cheers,
Rob Brueckner
1972 Hatteras Yachtfish
I'd be interested to hear from listees who have done an engine lifting job
for realignment:
what type of lifting mechanism was used....I'm not familiar with terms like
"bottle jack".
I've done it two ways....borrowing what looks like a six foot high horse with
a chain block and tackle. (saved a lot of set up effort) ; I've also made a
similar rig with vertical legs from 4 x 4's and triangle shaped bracing,
lifting the engine with a pair of come alongs....in each case we had to brace from
under the floor to engine bed stringers to assure a firm footing.
Another time we used automobile jacks (the type that get inserted along the
side of a car) and had a 4 x 6 laid across a pair to lift an engine....A lack
of vertical height adjustment made this a bit difficult, but it did work...
I've seen engine mounts which permit a bit of side to side adjustment and
these are nice, but what is really helpful are ones which can be adjusted in the
vertical direction once in placed on engine bed stringers, as by turning a
supporting nut...without this capability each alignment "test" means lifting the
engine, inserting a shim, dropping it, aligning with the shaft coupling and
taking feeler guage readings....this gets very time consuming....a few bucks
more on mounts saves a lot on installation costs and permits easy adjustements
in the future.
I'd guess $3BU is a good estimate for a pair of Lehmans....
Cheers,
Rob Brueckner
1972 Hatteras Yachtfish
