Heater is not hot at Idle?
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=13122
Printed Date: November-17-2024 at 10:44pm
Topic: Heater is not hot at Idle?
Posted By: gdurham
Subject: Heater is not hot at Idle?
Date Posted: March-24-2009 at 10:21pm
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I had my local CC dealer install a heater in my 2005 206 last spring. At idle it blows cool air yet at speed it blows hot. Is this normal? I talked to the CC technician and he thinks my impeller might need to be replaced. Do you guys have any other thoughts? ------------- Gregg Durham, 2005 Yellow 206 SN limited on Manitou in Rochester, IN |
Replies:
Posted By: eric lavine
Date Posted: March-25-2009 at 10:16am
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I would think if it needed an impeller it would do opposite, blow hot air at idle because the flow rate is down ------------- "the things you own will start to own you" |
Posted By: eric lavine
Date Posted: March-25-2009 at 10:16am
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can you take a pic on how it is plumbed in the system? ------------- "the things you own will start to own you" |
Posted By: gdurham
Date Posted: March-25-2009 at 1:25pm
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The CC Technician said that at Idle the impeller was probably not moving enough water fast enough to make it to the heater core before the water starts to cool down. At above idle it moves the water fast enough to the heater core before it cools down. He said it should not be that way at Idle so he thinks the impeller might be bad since it is not moving enough water at idle. I have not changed the impeller and I bought the boat in February of 2007. ------------- Gregg Durham, 2005 Yellow 206 SN limited on Manitou in Rochester, IN |
Posted By: TRBenj
Date Posted: March-25-2009 at 1:50pm
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Gregg, that explanation doesnt make much sense to me. If your boat's cooling system wasnt up to par, you would be overheating- a bad impeller will likely cause an overheat or temperature creep when the boat is up to speed. It can usually keep up under low load (idle). You would have much bigger issues than a cool heater if this were the case!
Blowing cold air is a common sympton after a heater installation. Most likely, you need more flow through the core. We've found the best install involves a feed off the block or intake manifold, and a return just before the RWP. A reducer fitting just before the return also helps. Like Eric said, please take pictures or describe the install. ------------- |
Posted By: Hollywood
Date Posted: March-25-2009 at 2:05pm
It is absolutely not an impeller issue. http://www.skidim.com/prodinfo.asp?number=H423 - This will solve your problem . The M boats have had this problem for a while.
M3Fan has his heater connected at the block and intake manifold. I'm not even sure which way it's flowing but he's happy with the heat at idle. ------------- |
Posted By: gdurham
Date Posted: March-25-2009 at 2:39pm
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The boat is in storage and I will get picture tonight and post them. ------------- Gregg Durham, 2005 Yellow 206 SN limited on Manitou in Rochester, IN |
Posted By: gdurham
Date Posted: March-25-2009 at 2:40pm
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This is exactly why I come to this site. You guys are really good. ------------- Gregg Durham, 2005 Yellow 206 SN limited on Manitou in Rochester, IN |
Posted By: gdurham
Date Posted: June-05-2009 at 4:32pm
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The problem was actually a clogged strainer in the hose that goes to transmission. This limited the flow of the water in the engine. they also replaced the thermostate. problem solved. now one of the vent hoses came off the heater so i need to reattache it. any ideas on how to get to the heater? ------------- Gregg Durham, 2005 Yellow 206 SN limited on Manitou in Rochester, IN |
Posted By: bkhallpass
Date Posted: June-05-2009 at 7:31pm
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I assume it is mounted under the kick pannel. In the 206 you may be able to get at that hose through the open bow area. Just remove the seat cushion, and see what you've got. In my 210, the heater is mounted far enough forward that it is easy to get to the heater. If not, off with the kick panel.
The the flex hose is proably held on with a zip tie. BKH ------------- Livin' the Dream |
Posted By: 05 210
Date Posted: June-06-2009 at 12:23am
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BKH,
Can you access your heater through your bow cushion?? I lift mine and all I see is a fiberglass cooler  . I wish I had that option a few weeks ago,the kick panel is a pita.
Mike ------------- http:/diaries/details.asp?ID=2219" rel="nofollow - Air Nautique 210 Team 640 hours, not 1 regret |
Posted By: bkhallpass
Date Posted: June-06-2009 at 1:33am
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Mine does not have a cooler under the front bow cushions - just carpet, the hull, and in my case the heater. BKH ------------- Livin' the Dream |
Posted By: quinner
Date Posted: June-06-2009 at 9:57am
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Gregg,
Assuming you have an Excalibur, checking the impeller is very easy on that motor, loosen the allen heads on the pulley, pull serpentine belt tensioner back, remove belt, 3 hex head bolts on the pump and the impeller is out. Probably be a good idea to inspect it regardless. I clean my strainer very frequently, be sure you do not lose the rubber o-ring when removing the canister to clean. You will need to remove the kick panel to access the heater core and hoses, should be 2 screws into the floor and 1 or 2 on the left side going up. Check all the connections, have had to re-attach mine once since new. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1143" rel="nofollow - Mi Bowt |
Posted By: gdurham
Date Posted: June-06-2009 at 12:10pm
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It was not the glass strainer bowl as i do make sure that is clean. It was a hose that comes out of the engine then attaches to the transmission. where it attaches is a metal filter/strainer and it was filled with duck weed and limited flow. The CC mechanic showed me so i saw what he was talking about. I was suprised to find the waterhose attached to the trany. I will remove the kick board today and reattache the hose. ------------- Gregg Durham, 2005 Yellow 206 SN limited on Manitou in Rochester, IN |
Posted By: 8122pbrainard
Date Posted: June-06-2009 at 2:56pm
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Greg,
I feel that's the trans oil cooler you were looking at. I'm surprised that it was plugged as the strainer is supposed to remove the junk. Is there a basket (screen) inside the clear bowl? Take a hard look at the water lines so you understand the flow. Water comes in the bottom of the boat, into the strainer, through the trans oil cooler and into the raw water pump. From there it cools the engine. Inside the trans oil cooler, there are two fluid circuits. One for the water and one for the oil. The two do not connect. Water does not go through the trans. The two small lines connected to the trans are for the oil. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: gdurham
Date Posted: June-07-2009 at 11:44am
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It was semi-clogged at the transmission cooler. there is a metal type strainer at the trans cooler with 1/8" holes throughout it and a lot of the holes where clogged limiting flow. enough water was getting through to keep the engine cool just not enough to make the heater warm at idle. Duck weed is really small spores. I too was suprised as well as the mechanic that it got past the bowl strainer. This season I am going to be very ardant about checking the strainer bowl. ------------- Gregg Durham, 2005 Yellow 206 SN limited on Manitou in Rochester, IN |
Posted By: BuffaloBFN
Date Posted: June-07-2009 at 11:55am
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Maybe the basket in your strainer doesn't fit like it used to? ------------- http://correctcraftfan.com/diaries/details.asp?ID=2331&sort=&pagenum=12&yrstart=1986&yrend=1990" rel="nofollow - 1988 BFN-sold "It's a Livin' Thing...What a Terrible Thing to Lose" ELO |
Posted By: TheSpleen
Date Posted: June-07-2009 at 2:58pm
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[QUOTE=TRBenj] Gregg, that explanation doesnt make much sense to me. If your boat's cooling system wasnt up to par, you would be overheating- a bad impeller will likely cause an overheat or temperature creep when the boat is up to speed. It can usually keep up under low load (idle). You would have much bigger issues than a cool heater if this were the case!
QUOTE] If his boat has a scoop on the intake it could make sense - when at speed water gets forced into the system, but while idling the impeller doesn't suck up as much as it should. My boat temp rises while I'm idling... Although for me, at least, this means I get hot air while idling, too! |
Posted By: gdurham
Date Posted: June-08-2009 at 12:01pm
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I suspect that the bad thermostat was probably more the problem as my boat's temp also rises at idle. At least I now have heat at idle and I just fixed the hose that came off the heater. I was suprised at how easy it was to get the kick board off under the driver pod. ------------- Gregg Durham, 2005 Yellow 206 SN limited on Manitou in Rochester, IN |
Posted By: ruthroad
Date Posted: August-23-2009 at 11:43pm
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BKH,
I read you post from June 2009. I have 2000 Air Nautique and need to get to heater unit. Fan is not working. I have attempted to remove kick panel without much success. It is very tight fit with circuit breaker box attached to kick panel; above is steering cable; and on right there is side panel with throttle unit. Is there a trick to pull out kick panel? I appreciate your help. Sincerely, David ------------- David Ross |