Another 470 Leaking Coolant

stonyloam

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Re: Another 470 Leaking Coolant

They don't make mine anymore, so best bet is e-bay.
 

SDSeville

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Re: Another 470 Leaking Coolant

OK. I turned it by hand and everything was smooth. No noise except air coming out of the spark plug holes. Then...relaxed...I removed the starter. What should I look for on the starter? The teeth look a little ground down at the edge (but not too bad) and I saw some fresh metal on the flywheel.

starter.jpgstarter2.jpgstarter3.jpg
 
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stonyloam

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Re: Another 470 Leaking Coolant

Kinda looks like the starter was not fully engaging the flywheel. could be the shaft is a little sticky from sitting. You could try lubing it a bit, then doing a bench test using a set of jumper cables to see if the gear is sliding OK. Be careful hooking up the cable and have the starter held down really well, it can develop a lot of torque when it starts. Or just take it to a auto parts store to be tested. A new one might not be a bad investment.
 

bfjou812

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Re: Another 470 Leaking Coolant

While you have the starter out, I would rotate the motor by hand and check the teeth on the flywheel.
 

SDSeville

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Re: Another 470 Leaking Coolant

While you have the starter out, I would rotate the motor by hand and check the teeth on the flywheel.

Here are some pictures of the worst parts of the flywheel. There are no teeth missing or chipped, but these sections are a little rough. What do you think?

Flywheel.jpgFlywheel1.jpgFlywheel2.jpg
 

stonyloam

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Re: Another 470 Leaking Coolant

Flywheel doesn't look too bad. That starter should do it.
 

SDSeville

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did you put any sealer under your sleeves when you installed them?
Yes, Stern Drive instructions said to put red loctite under the seals. I am thinking the seal was probably damaged because I put the timing cover on and removed it several times because the oil pan gasket (repaired part) kept moving during installation.
 

SDSeville

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Success at last!!! New starter, seals, and gaskets and runs great with no leaks. Ran on muffs for about 20 minutes and not a drop of coolant or oil (oil pan gasket).

I found what caused the impeller to grind on the cover -- years ago the PO replaced the seals because of a groove under the front seal. Instead of using speedi-sleeves, he used 2 timing cover gaskets to get the seals to ride on different places on the cam shaft (away from the groove). With 2 gaskets, PO had to use a washer under the impeller (between impeller and cam shaft) to get the impeller to clear the timing cover. When I installed the sleeves and replaced the seals, I used a single timing cover gasket, but reinstalled the PO's washer under the impeller (thinking it was factory). With only one gasket, the washer caused the impeller to ride too high and grind on the cover.

I got lucky finding this problem. I was actually going to reinstall the washer under the impeller again but as luck would have it, I could not find it. When I called the shop to see if they had the washer, they told me there was not supposed to be one under the impeller.

Thanks to everyone who helped me with this. Yet another project that a not very mechanically inclined accountant was able to pull off with all your help!!€‹
 
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