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Was helping my Dad get his boat running yesterday for the first time since last season. It is on the trailer and he has no "muffs" or other method to cool the engine, so we put a large cooler under the foot and the water just barely covered what I assumed were the water intake grates about a foot or so from the bottom of the motor. With some help from starter fluid, we got it running and waited for the telltale water stream to start shooting out of the hole, but it never happened. After 30 seconds or so at idle I shut it off. I pulled the rubber hose off of the telltale outlet and made sure the hose and the outlet nozzle were clear and they were. I tried again.....nothing. The first question is, did I have enough depth for the water intake system to work? I hope the problem is something simple like this. We did replace the impeller last summer and it was running and cooling fine when it was last used. Thanks for the input!
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the water pump does not "self prime" at low rpms
when the boat is in the water, it doesn't have to -
because the pump is sitting many inches below water level - which is many inches above the intakes
out of the water, muffs - properly used - force water up into the pump
doing what you did, can melt a water pump housing real quick
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This response is exactly what I had hoped for and I really appreciate it. I am 4 hours away from the boat, but I'm headed back down in a couple of weeks and I'm going to put it in the water and test it. Your explanation makes perfect sense. Thanks again!!Comment
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Muffs at Walmart are about $5..... You really should invest in them...Comment
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My wife pulled a Robert yesterday and tilted the motor out of water at the beach yesterday. I was at the front of the boat for about a minute until I realized it was still running.....Originally posted by robert graham View Post
I'll take it apart today to see if anything melted.....Comment
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I'd also take a spare impeller if it is a four hour trip!Originally posted by pstephens46 View PostComment
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All good. No harm. Now if I could get the GD lower back in midsection. Kicking my ass tonight. Bugs sent me back inside. Hell with it.Originally posted by zenoahphobic View Post
Found a horse Zeno. Throughbred Clydesdale mix if you can believe it. Couple ladies who advise us said they would buy it if we did not. Waiting on vet to inspect.Last edited by pstephens46; 05-14-2018, 09:07 PM.Comment
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Clyde cross very popular over here ( with the ladies). Can be very sound and live long. My wife's horse is a Clydesdale Quarterhorse cross, he is big and solid, and worth many$$.Originally posted by pstephens46 View PostComment
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you have most likely smoked the water pump.
however for future reference that motor has an onboard flush device that works well.
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Yep, on my C90 the plastic pump body is $30 and the impeller is $30....so a relatively cheap short course in the price of stupid!....I doubt I'll be doing that again any time soon!....Heck, I've got enough stuff to do without just making work for myself!Comment
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I wasn’t implying you were stupid. Stuff happens. My motor ran for a minute or more out of water. But, it was just pulled out of water so that helped I am sure. Couldn’’t see any changes to impeller or housing. These things happen when people are rushed or pressured for some reason.Originally posted by robert graham View PostComment
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Yamaha placed a very nice flush device on most motors since the late 90's. why not simply use it???Comment
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Originally posted by rodbolt17 View Post
Probably because it's not listed practice anywhere I've seen. I trust what you say and have seen.
I use both that flusher (NOT running- and yes I've seen the WP video getting enough water trickling down) and muffs, running.Scott
1997 Angler 204, Center Console powered by a 2006 Yamaha F150TXRComment
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