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  #11  
Old 08-07-2013, 04:47 PM
DAinAZ DAinAZ is offline
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It looks like that plug is in the block in your picture. The plugs in my block are all good.

The plug (looks more like a flat cap) that popped out was on the side of the exhaust manifold. There are two on each manifold, but only one popped out.
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  #12  
Old 08-07-2013, 04:52 PM
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Quote:
Originally Posted by DAinAZ View Post
It looks like that plug is in the block in your picture. The plugs in my block are all good.

The plug (looks more like a flat cap) that popped out was on the side of the exhaust manifold. There are two on each manifold, but only one popped out.
They serve the same purpose as casting plugs, but I think they are more prone to falling out by themselves on the exhaust manifolds.
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  #13  
Old 08-07-2013, 04:55 PM
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When restarting after a skier change, and it starts running hot, is it difficult to start? Is it possible that your distributor advance is not returning all the way? If that were the case, it would run hot at idle with all the advance.
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  #14  
Old 08-07-2013, 05:01 PM
DAinAZ DAinAZ is offline
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It starts pretty easy after a skier change. Once it starts, it only takes 10-15 seconds for it to cool down to running temperature, and that is while still at idle, before it has even been shifted into gear.

I am going to check the cap and rotor tonight just to see if that may be causing some of my stuttering issues that happens occasionally. I'll check the spring then too.

EDIT: Heading home from work now, so I will see what I can find. Won't post for a couple hours until I get my home chores done. Have to keep the family (wife) happy!
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  #15  
Old 08-07-2013, 05:04 PM
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Quote:
Originally Posted by DAinAZ View Post
It starts pretty easy after a skier change. Once it starts, it only takes 10-15 seconds for it to cool down to running temperature, and that is while still at idle, before it has even been shifted into gear.

I am going to check the cap and rotor tonight just to see if that may be causing some of my stuttering issues that happens occasionally. I'll check the spring then too.
I have done the dance with sticking advance before and it can be a fun one if it doesn't happen every time. You might try running your blower at low speeds and opening your engine cover when stopped to try to isolate the source.
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  #16  
Old 08-07-2013, 05:18 PM
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What is the actual temperature reading on your gauge when the boat is at idle?
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  #17  
Old 08-07-2013, 05:44 PM
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Kevin 89MC Kevin 89MC is offline
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What temp t-stat did you put in? There are 2 commonly available, ~140 or ~160 degree. I put the 160 in a few years ago, had the same problem as you. Switched to the 140 and now it almost never does it. The only time it does it now is after a barefoot or WOT run, if we shut down then start back up. The "high temp" alarm will sound for a few seconds, then shut off. I chalk it up to a little heat soak and don't worry about it too much. These engines run much hotter in vehicles, so I don't think a few seconds of "hi temp" will hurt much. I think mine might hit 210 or 220, pretty mild with respect to vehicle engine temps. Now that Peter mentioned it, I should check my distributor springs as well...
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  #18  
Old 08-07-2013, 06:15 PM
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ahhudgins ahhudgins is offline
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Quote:
Originally Posted by Kevin 89MC View Post
What temp t-stat did you put in? There are 2 commonly available, ~140 or ~160 degree. I put the 160 in a few years ago, had the same problem as you. Switched to the 140 and now it almost never does it. The only time it does it now is after a barefoot or WOT run, if we shut down then start back up. The "high temp" alarm will sound for a few seconds, then shut off. I chalk it up to a little heat soak and don't worry about it too much. These engines run much hotter in vehicles, so I don't think a few seconds of "hi temp" will hurt much. I think mine might hit 210 or 220, pretty mild with respect to vehicle engine temps. Now that Peter mentioned it, I should check my distributor springs as well...
That is why I'm waiting to see if he knows the actual temperature reading at idle. He might already be on the high side (above 160) due to a small cooling issue. 15 to 20 degrees of heat soak is normal which might put him over the limit.
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  #19  
Old 08-07-2013, 06:16 PM
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Quote:
Originally Posted by ahhudgins View Post
That is why I'm waiting to see if he knows the actual temperature reading at idle. He might already be on the high side (above 160) due to a small cooling issue. 15 to 20 degrees of heat soak is normal which might put him over the limit.
Good point.
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  #20  
Old 08-07-2013, 06:17 PM
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thatsmrmastercraft thatsmrmastercraft is offline
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DAinAZ...have you checked the screen at the trans filter for debris?
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