75 SW Restoration

Update


.
.

I see vortec heads, an RR cam setup and a grille from my favorite Chev truck body style 

Slightly more than a Keno!!



1985 W900B
3406B Cat

Here’s the latest update
Stuck on the wiring right now
But should have it ready to go by the weekend.
Hope to break in the camshaft .














ecusta credit union

I was hoping someone would look at that and tell me what I did wrong.
The old set up, ran along the very bottom, and did not have a strainer on it
Would it be wise to put a valve somewhere?
I have not really seen very many ski boats and do not know what they do.
I was more concerned with the seawater getting to the pump more than anything.
I believe this set up should actually fill the pump up if the boat is in the water.
I’m thinking a failure of anything under water level would be catastrophic. And the water level is just below the bottom of the exhaust.
Would a loop that went almost up to the bottom of the floor do any good?
I am open for any suggestions someone has.
The boat will probably never sit in the water very much, but you never know

I went back and reread the prior post.
Now I’ve got some questions and it may be time for a phone conversation with you Ken.
Maybe we can talk tomorrow
Or I guess that would be later today

DenDen wrote: I went back and reread the prior post. Now I’ve got some questions and it may be time for a phone conversation with you Ken. Maybe we can talk tomorrow Or I guess that would be later today

Update:
I cut off the dipstick so the handle doesn’t even stick out much. Will remark the full line when I can.
New picture of my water strainer, thanks for everyone’s help.

https://ibb.co/j389dTn

We got the motor in the boat got the cam broke in.
Bought a new Holly carburetor to find that I need a new wedge plate underneath of it
I’m assuming it’s a 15° angle one like the picture shown above. This one on eBay will cost me almost $200.
Is anybody got something like that laying around that I could get or less money.

I decided to measure the one that came with the boat on the 307 which was a Rochester Quadra jet.
I get 10°
Does anyone know what angle these carburetors are to be mounted at?
I understood the motors were at 15°.
I’m not even sure that is correct.
Once again, I need some help from this forum

Thanks for the answer Ken.
The last boat I had was a 351 with a Holly but I couldn’t remember how it was set up.
My son and I decided to just purchase two 5 degree plates, and put them both on for a total of 10.
I don’t see why this would cause any problem, unless someone else can think of a reason not to.
To update our progress as I mentioned earlier, we made it through the cam break-in with no problem.
The Almost 5 gallons per minute water supply was just barely enough, when the thermostat opened that would cause the exhaust manifolds to heat up to about 120°. and then they would
cool right back down to touch.
We could tell when the thermostat opened because we have clear hoses and the water would become dirty .
Nexts; tune it up and take it to the pond to see how the circulation pump works
After that, I will put the interior in and get ready for a warm day to go to the lake.
I will take a bunch of pictures between now and then to post.
PS
our weather is turning cold for the next little while

Thanks
We knew about the bending of the studs, the Rochester Quadra jet that was on it had much longer studs in the back.
I think we got it figured out

Yes, I have the exact same distributor that was in the 307.
When I get ready to officially time, the motor up, I will see what we have advance wise.
If I remember correctly, it only advanced 27° at 3500 RPM.
I am thinking the total advance should be above 30 maybe 32
The only timing we did so far was to set it at 20° BTC @ 2000 RPMs while we were breaking the cam in

Latest update
Got nice enough weather to try the boat in the pond
The only thing we found out is that it would not draw water through the system that I have shown above.
While it was in the pond, I eliminated everything but a hose directly from the inlet to the transmission cooler.(starting to get smart and plan ahead.)
That seems to work really well. So back to the drawing board.


As you can see in the pictures to follow a rerouted the line to stay as close to the bottom of the boat as possible.
Today it was back to the pond, it worked perfectly.
As soon as the boat was in the water the line and the strainer filled completely up. On startup it drew water immediately and continue to do so as it idled.
Everything seems to work well as best we could ascertain in the pond. The pictures show the interior only. I will take some pictures and videos when I get it out of the shop and to a lake. (hopefully very soon)