Good Luck Dave, that is WAY beyond my scope of practice. I'm sure it will be a beauty when you are finished. How man hours are on the 351 engine?
Kevin
<pindoc2@yahoo.com> wrote in message news:1154458316.141551.92800@h48g2000cwc.googlegroups.com...> Newbie 'boarder/skier just bought a 78 mastercraft 19' that the seller> said it "simply" needed the back floorboard sections replaced, upon> further / closer inspection the rh stringer is rotted badly where both> the motor mount and tranny mount attaches to the rh stringer. I should> have noticed this when looking at the boat for purchase.>
The motor has dropped probably 1/2" on that side, and the drive shaft> tells this tale by being really off center.>
I am scared to put the boat in the water with it in this bad of shape,> I dont want to sink her !>
Q: Would it damage it further(the stringer/mount) to go ahead and get> the engine running/verify whether or not the engine needs a rebuild,> and secondly how entailed / difficult is it to replace these wooden> stringers ? With the 351 pcm and trans removed, I would think cutting> the top of the 'glass stringer off> and digging the rotted wood out and replacing it with new treated> oak/maple/birch 2 x 10 " stud, then sealed with epoxy and/or fiberglass> resin would generally do the trick, or am I way off base here ?!?!?!> Please help !!>
Any advice and/or help on this proceedure would be very much> appreciated..as I simply can not afford 1800.00 to 2500.00 for this> repair with new floorboards.>
So much for being on the water by september 1st !! ...lol>
Mark Kovalcson 4 August 2006 02:20:04 [ permanent link ]
We have gone through the motor and now tested, as above, with 465> hours, it should not need a compression test, or the pmc exaust> manifolds removed or inspected, the ignition and raw water pump/cooling> system got lots of attention, and is already tested water tight even at> op. temp., during or second engine test/carb/lgnition adjustments, the> final carb adj. yeilded an engine that runs smooth enough at idle (600> rpm) you could set your beer on the air breather while running ! The> broken fg/wood stringer on the right did not drop noticably, I should> have measured the height from the bottom of the hull to the rh motor> mount after both test runs, I am leaning toward going ahead and getting> some use out of her before we run out of summer here !
It's not the hours it's the age, but if it sounds strong and runs smooth don't worry about it. My friends 1992 MasterCraft has about 1500 hours in it's 351 and it still runs great! Of course it gets exercised very regularly.
I put electronic ignition on my 1981 boat which is very similar to yours with a PCM Ford 351 Winsor etc... It is worth replacing the points and condensor if you are doing much to the boat anyway. Of course you would have to reset the timing and if everything it tip top save that for later.
I think finishing off the season and using it as much as you can before you dry dock it and tear it apart is a good plan!
465 hrs?!? You aren't even getting broken in until around 750. I've heard nothing but good things about the 351 engine too.
Kevin
<pindoc2@yahoo.com> wrote in message news:1154545909.784646.15300@m73g2000cwd.googlegroups.com...> Kevin,>
Thanks for the info. the engine has 465 hours on it, I have been told> this is low for its year model.>
Dave C ..> K. Engel wrote:>> Good Luck Dave, that is WAY beyond my scope of practice. I'm sure it >> will>> be a beauty when you are finished. How man hours are on the 351 engine?>>
Kevin>>
<pindoc2@yahoo.com> wrote in message>> news:1154458316.141551.92800@h48g2000cwc.googlegroups.com...>> > Newbie 'boarder/skier just bought a 78 mastercraft 19' that the seller>> > said it "simply" needed the back floorboard sections replaced, upon>> > further / closer inspection the rh stringer is rotted badly where both>> > the motor mount and tranny mount attaches to the rh stringer. I should>> > have noticed this when looking at the boat for purchase.>> >
The motor has dropped probably 1/2" on that side, and the drive shaft>> > tells this tale by being really off center.>> >
I am scared to put the boat in the water with it in this bad of shape,>> > I dont want to sink her !>> >
Q: Would it damage it further(the stringer/mount) to go ahead and get>> > the engine running/verify whether or not the engine needs a rebuild,>> > and secondly how entailed / difficult is it to replace these wooden>> > stringers ? With the 351 pcm and trans removed, I would think cutting>> > the top of the 'glass stringer off>> > and digging the rotted wood out and replacing it with new treated>> > oak/maple/birch 2 x 10 " stud, then sealed with epoxy and/or fiberglass>> > resin would generally do the trick, or am I way off base here ?!?!?!>> > Please help !!>> >
Any advice and/or help on this proceedure would be very much>> > appreciated..as I simply can not afford 1800.00 to 2500.00 for this>> > repair with new floorboards.>> >
So much for being on the water by september 1st !! ...lol>> >
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