Note: A Bravo 3 lower is the same on a Standard B3 all the way to B3 X and XR. The upper housing is the only difference.
Parts I listed are the correct ones.
While even Mercruiser Parts list both seals (37 and 42) and item 37 as NLA if it's selected it shows 45 pieces in stock. My assumption...
New seals
1 each Small inner seal 26-8M0033407 (replaces 2 each lip seals)
1 each Large outer seal 26-861694 (replaces 2 each lip seals)
Dimensions 3 - 3/8 OD, 2 - 1/2 ID, 13/16 wide
Use manual 28 and on page 3D-26 it list removal tool as 91-862064A1
If you do not have the manual, then need to...
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To remove prop shaft both carrier and retainer must be removed.
As mentioned in my thread I tried the slide hammer and was not able to get it out. I wound up splitting the seal to remove. Figured I would buy the correct tool and use a press if I needed to do it again
Didn't have much...
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The stuff in your link is basically radiator stop leak
Folks have tried to use that kind of stuff for years. It coats everything in the motor and does stop a very small leak, the issue is it doesn't last. The other thing is it won't do a head gasket
We thought all were verified cracked in same place
Can test by using a piece of rubber and sandwich the elbow and manifold together, or use a piece of flat steel or even a 2x6 piece of wood. Then pressurize to 1 bar
There is an impeller inside
Look for a thru hull shutoff valve and close it. Then remove the pump and disassemble
Does look like the G7B and if correct look for rebuild kit
If pump needs complete rebuild with bearings I found this one
Rebuild
Don't know how much if any.
Boat was bought from Checkmate in 85 by my Buddies brother who is a doctor. The same model never came with a 383 so no numbers +/-.
I've been in it and speed-o does not keep up and it doesn't have a GPS. Pics of it on the water with 4 people in it, all you see a WOT...
Think of a garden hose, the water comes from the house (the pump). The spray nozzle (regulator) regulates the pressure based on how much nozzle is opened or closed
The high pressure fuel pump will produce more then 60 psi. Can bench test fuel pump on bench with gauge connected direct to pump...
