New to me engine...what do I have

[DeanFHobart]

thank you!!!!!

I got all of this for $150

Good or bad deal?

The most expensive part of what you bought is the gear case. Assuming the gears are good complete gear cases are worth up to $1000….. Take the gear case off the tower housing, drain all the oil or grease out and put in new gear oil. Roll the gears over and feel that there is no binding or or ‘catching’. Also remove the rear cone bearing assembly…..rembering the threads for that are left hand threads, so to loosen the cone by turning it clockwise. There are special tools for that you need to get.
The next expensive part is the tower housing…… it is a Q model…. Mercury later came out with what was called the ‘hydro short’ tower housing. All of the interior parts for the gear case are available new…..gears, prop shaft, beatings, seals, water pump parts and rear cone and bearings. The parts for the Bendix magneto might be hard to find. Assuming that you want to turn it back into a stock motor….change the pipe setup to the stock exhaust plates. And discard that ugly steering bar and find a stock chrome one.

Good luck in your venture. Of course you will need to get the rewind parts. But you did get a good deal at $150.

[zul8tr]

Dean is correct on the gear case and tower that have worth. Also the prop is worth prob $50 and the transom clamp assembly has value if the forged alum design not the cast alum design. If you take off the gear case cone using the right tool do it with the complete engine mounted on a stand for better control, repeating Dean's advice to remove turn clockwise viewed from the rear, it might be really stuck? Once removed there is an inner cone piece with bearings or just a bushing sleeve if the older design. If bearings are present they are lubed separate from the lube of the gear case and have their own lube requirements, prop shaft condition very dependent on how well these bearings were maintained.

When you do hand test the gear case pull up on the drive shaft as you rotate it - they are designed with some vertical bearing clearance -you should not feel gears meshing for a good 1st test. If you want to look into the gear case to see gears there is another special tool to pull the water pump cartridge.

It appears you got a good deal at $150

Let us know what inspection reveals

[cocacola]

thank both of you for commenting. Great information and it makes me think that the guy selling wanted to start at $1000. Something told me it was just a negotiating technique and he knew nothing more than me.
I will enlist my dad's help as he raced engines like this in the 50's....but mainly the 30H.

Last night I scrubbed and pressure washed the whole thing. The coated the entire think in a film of oil.

Also....I sprayed some starting fluid in the cylinders and it fired up.

Since my DAD (see my post about him) is 250 miles away....I'll do what I can before getting him involve.

[cocacola]

thank both of you for commenting. Great information and it makes me think about the guy selling wanted to start at $1000. Something told me it was just a negotiating technique and he knew nothing more than me.
I will enlist my dad's help as he raced engines like this in the 50's....but mainly the 30H.

Last night I scrubbed and pressure washed the whole thing. The coated the entire think in a film of oil.

Also....I sprayed some starting fluid in the cylinders and it fired up.

Since my Dad is 250 miles away....I'll do what I can before getting him involve.

see this post about him
https://www.boatracingfacts.com/foru...ciation/page20


Pictures
https://www.dropbox.com/scl/fo/csqqu...z1m5hlz3my8dk9

[cocacola]

Hi Dean. As you probably know by now...I am good friends with a friend of yours....Tom Williams.

[zul8tr]

Nice pics and great it fired right up. Did you have the gear case in a water barrel to see if it pumps or just a dry start for now? Again you got a great deal!

[cocacola]

Nice pics and great it fired right up. Did you have the gear case in a water barrel to see if it pumps or just a dry start for now? Again you got a great deal!

let me clarify.....not in the water or water bucket.
Just finished cleaning it up and sprayed starting fluid spray into spark plug holes.
Then I pulled rope, it made a firing sound and smoke came out of exhaust.
EXTREMELY BRIEF run.....a second or two.

Lets see how much time I have this weekend....
My guess is fuel pump isn't working.
NOTHING has been opened up (carb and pump).
Who knows how bad the water pump is....my ONLY experience is a 115 inline and 200 V6.

I'll have wife ready with video camera next time

[zul8tr]

From pics were those 2 different J6J and H10 plugs in the engine? Not sure where H10 heat range is relative to J6J which is hottest in the 3/8" reach design. If you plan on barrel running it get new plugs J6J, if you go this way on a race boat at high speed need colder like Champ J4J would be preferred?

[cocacola]

From pics were those 2 different J6J and H10 plugs in the engine? Not sure where H10 heat range is relative to J6J which is hottest in the 3/8" reach design. If you plan on barrel running it get new plugs J6J, if you go this way on a race boat at high speed need colder like Champ J4J would be preferred?

Yes....plugs were not matching.
Thanks for advice....I cleaned them but clearly worn out.
I did spray a LOT of oil in cylinders.
Did not take a compression test, but seemed strong....something else to do this weekend.

[cocacola]

The most expensive part of what you bought is the gear case. Assuming the gears are good complete gear cases are worth up to $1000….. Take the gear case off the tower housing, drain all the oil or grease out and put in new gear oil. Roll the gears over and feel that there is no binding or or ‘catching’. Also remove the rear cone bearing assembly…..rembering the threads for that are left hand threads, so to loosen the cone by turning it clockwise. There are special tools for that you need to get.
The next expensive part is the tower housing…… it is a Q model…. Mercury later came out with what was called the ‘hydro short’ tower housing. All of the interior parts for the gear case are available new…..gears, prop shaft, beatings, seals, water pump parts and rear cone and bearings. The parts for the Bendix magneto might be hard to find. Assuming that you want to turn it back into a stock motor….change the pipe setup to the stock exhaust plates. And discard that ugly steering bar and find a stock chrome one.

Good luck in your venture. Of course you will need to get the rewind parts. But you did get a good deal at $150.

any leads on a steering bar like you mentioned?