Temperature 454 PMC
Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=13920
Printed Date: May-03-2024 at 2:34am
Topic: Temperature 454 PMC
Posted By: oledawg
Subject: Temperature 454 PMC
Date Posted: June-07-2009 at 2:11pm
OK, my 87 CC with the 454 PMC engine tends to run in the 170 - 190 degree range, no matter what rpm. Impeller has just been replaced but that didn't change the temp. Not sure what thermostat it has, but would a 143 help? Or does the thing even need a thermostat if it is only run in relatively warm weather? Whole purpose of a thermostat is to help warm up the engine, not to control the upper end necessarily. Maybe a stupid question, but where is the thermostat located on a 454 PMC?  ------------- "To profit from good advice requires more wisdom than to give it" |
Replies:
Posted By: eric lavine
Date Posted: June-07-2009 at 2:29pm
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PCM, your engine falls into the normal operating temperatures that the engine needs to run economically, it will be in the thermostat housing on top of the intake ------------- "the things you own will start to own you" |
Posted By: eric lavine
Date Posted: June-07-2009 at 2:30pm
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BTW, there is no such thing as a stupid question....well maybe there is, such as where is the outdrive at ------------- "the things you own will start to own you" |
Posted By: oledawg
Date Posted: June-07-2009 at 2:51pm
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Yeah, where is that outdrive thingy? I can't seem to find mine!
Thanks on the temperature question, so it seems that the 170 - 190 degrees is actually not a problem then? I actually have an old Chevy truck that has this same engine and it runs to the hot side also with no problem. Maybe just a quirk of the engine. ------------- "To profit from good advice requires more wisdom than to give it" |
Posted By: eric lavine
Date Posted: June-07-2009 at 2:56pm
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you do need the thermostat in it so dont remove it, 190 may be a touch hot but nothing to worry about, the choices are a 143 or 160 and im pretty sure most of the times the guy's are running the 143...i think someone will be along sometime to confirm the temps, when you see of a more radical temp difference such as 210 the you need to worry or if the gauge fluctuates quickly up and down ------------- "the things you own will start to own you" |
Posted By: oledawg
Date Posted: June-07-2009 at 3:01pm
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OK on the needing the thermostat, and I have never seen the guage go over 190, never fluctuates rapidly. Maybe I just need to replace with a 143 just as routine maint. These things are relatively inexpensive and supposedly easy to change out. ------------- "To profit from good advice requires more wisdom than to give it" |
Posted By: BuffaloBFN
Date Posted: June-07-2009 at 3:06pm
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If you never went over 190 you'd be fine, but your margin of error is close. Mine sees 180 if I get on it and then shut it off. Otherwise it stays around 160. I have the 143.
If you haven't already, check your hose connections, the strainer, and maybe the trans cooler. ------------- 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: 87BFN owner
Date Posted: June-07-2009 at 4:45pm
Posted By: woodyelc
Date Posted: June-07-2009 at 8:31pm
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Only one temp is offered for a PCM 454 thermostat which is 160. Which will make the motor run 170-190. If it goes higher, when you are running across the lake than you will need to replace it. It will go up after a run when you come back to idle but if the impeller is good it will go right back to normal. Hope this helps. ------------- woodyelc |
Posted By: oledawg
Date Posted: June-08-2009 at 1:16am
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Think that you can get a 143 for this engine, but in any case I took the boat out for a long run today and even running hard for about 10 minutes it never got over 180 and just cruising it stayed at 160 - 170 so I think that all is OK. ------------- "To profit from good advice requires more wisdom than to give it" |
Posted By: 86BFN
Date Posted: June-08-2009 at 2:22pm
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BTW how are you liking you're Riviera? Did you remove the mufflers? We'd like to see some pictures! Are you going to post in the diaries? sorry about all the questions, just curious.
Steve Edit: Oops, my bad. I see you have it in the diaries. If you edit your profile and add your diaries ID # ( ID=4552 )in your profile you will get the avitar on your post. ------------- 👣 Steve http://www.correctcraftfan.com/diaries/details.asp?ID=4057&sort=&pagenum=1&yrstart=1986&yrend=1986" rel="nofollow - 86 Barefoot Nautique 89 Martinique Former Owner: 93 Hydrodyne 350 MAG |
Posted By: oledawg
Date Posted: June-08-2009 at 3:56pm
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Yeah, this is one big boat as you likely know and the gas tank ( all 40 gallons of it! ) has to be removed to get at the rear muffler clamps. HEAVY!!!! So I have postponed the muffler removal until the fall. I actually just got the boat back in the water Saturday as I had to put a new lift in my boat house that would lift 4,000 pounds ( as I said, HEAVY ), this thing is no Tique! I have taken it for a couple of good runs and am in process of "learning" the boat. Am past the temperature issue that I thought that I had, but will still use some of the advice just to keep everything cool. I discovered that the "fuse system" is like the one on my Harley, too much load and EVERYTHING shuts down, the boat just plain stops! When the fuse cools off all is good. Apparently you can't run everything at once, ie bilge pump, blower, ACC, etc. Or maybe this is yet another forum! The 454 is awesome though and will take that big boat for a big ride quickly. Later this week I will try to take some pics for the dairy. Thanks for the curiousity. ------------- "To profit from good advice requires more wisdom than to give it" |
Posted By: oledawg
Date Posted: June-09-2009 at 12:29pm
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FYI, the 145 degree thermostat for the 454 is part # 0701 from skidim and includes the thermostat and all gaskets, etc. ------------- "To profit from good advice requires more wisdom than to give it" |
Posted By: 86BFN
Date Posted: August-12-2012 at 5:25pm
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Sandy, how did the 145 work out for you. I'm thinking about changing mine out as well. Steve ------------- 👣 Steve http://www.correctcraftfan.com/diaries/details.asp?ID=4057&sort=&pagenum=1&yrstart=1986&yrend=1986" rel="nofollow - 86 Barefoot Nautique 89 Martinique Former Owner: 93 Hydrodyne 350 MAG |
Posted By: oledawg
Date Posted: August-12-2012 at 6:19pm
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Actually I am now using the 143 thermostat and it works great. Also had to replace my water pump as it was leaking. In any case, even after really hard runs the temp never gets over 160. All is good... ------------- "To profit from good advice requires more wisdom than to give it" |
Posted By: tbeard
Date Posted: August-12-2012 at 6:46pm
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My 454 runs at 160 and after running 38 - 43 MPH pulling a skier then back to idle it will spike up to 180. I have another issue! When I turn on the navigation lights the temp gage goes up 20 degrees and the alarm will chirp. I have seen some pics where folks re-wire the daisy chain harness to a block design. Could this be the problem? Some of the same weird issues when the blower is running. ------------- Thanks.......Tom |
Posted By: Hollywood
Date Posted: August-13-2012 at 1:10pm
Where did you get a 143 thermostat for a PCM 454? ------------- |
oledawg wrote:
Posted By: Bri892001
Date Posted: August-13-2012 at 2:01pm
Yeah, this is basically caused by marginal wiring. I got a bus bar, and ran a new ground from my engine (you could do it from your battery too). I connected the new ground to the bar, and tied back to the bar from multiple points along the daisy chain. It definitely stopped my temp gauge from moving when accessories are turned on. A general clean up and replace of terminal ends, and suspect runs of wire help as well. |
Posted By: oledawg
Date Posted: August-13-2012 at 2:27pm
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I am pretty sure that I got my last 143 from Skidim ( Discount Marine Parts ) but I notice that they no longer show such an item. You might want to contact them to see if they still carry it. ------------- "To profit from good advice requires more wisdom than to give it" |
Posted By: Hollywood
Date Posted: August-13-2012 at 2:35pm
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I just had a PCM 454 thermostat convesation with them last week, which is why I asked. 143 sounds like the much more common 351 thermostat. ------------- |
Posted By: oledawg
Date Posted: August-13-2012 at 4:29pm
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Looked back at my order in 2009 and the part # was 0701 and was about $58 with all gaskets, etc. They still have this but it is $79 now. It is what is running in my boat as we speak, so I know that it works... Actual e-mail: From: salesskidim(New RR) To: 'Sandy Browder' Sent: Tuesday, June 09, 2009 9:00 AM Subject: RE: Thermostat Hello, Item # 0701 is the T-stat and all gaskets, cost $57.30 (145 degree). Thanks, Richard Powlas www.skidim.com ------------- "To profit from good advice requires more wisdom than to give it" |
Posted By: Hollywood
Date Posted: August-13-2012 at 4:40pm
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You said 145 in some spots and 143 in others. I think I get it now, you meant 145 the whole time. ------------- |
Posted By: oledawg
Date Posted: August-13-2012 at 7:01pm
143, 145, what is a few degrees among friends  ------------- "To profit from good advice requires more wisdom than to give it" |
Posted By: Hollywood
Date Posted: August-13-2012 at 7:05pm
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They are completely different units and will not interchange between the 351 and 454, so yeah kind of a difference. ------------- |
Posted By: oledawg
Date Posted: August-13-2012 at 7:38pm
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OK, I don't know what your point is. The description says it is for GM motors, it fit and works on my 454, so do what you will with the information. I am not going to debate you about it. 'Nuff said, ask someone else since you obviously do not care for my input. ------------- "To profit from good advice requires more wisdom than to give it" |
Posted By: Hollywood
Date Posted: August-13-2012 at 7:49pm
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You can't put a PCM 143 thermostat (for the 351) in a 454. I don't want someone to get confused and try that. The 145 is significantly more expensive unfortunately. ------------- |
Posted By: oledawg
Date Posted: August-14-2012 at 2:44am
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You know, I looked back through this 2009 thread and it pretty much consistently says 145, not sure why I mentioned 143 in 2012, but it is clear since there is no 143 for a 454 that this was a mistake on my part. I didn't bring it up now, you guys did, for some reason. Sorry, sorry, sorry. I am a bad person. From now on it seems that I should probably just ignore CCF questions, I don't need hassles of any type over something nit-picky like this. This is the kind of thing that could make me leave a forum. The 145 that I bought and installed was and is relatively expensive, but when a $5,000+ engine runs 15-20 degrees cooler it is worth it to me. My opinion, again, if worth anything, but seemingly not. ------------- "To profit from good advice requires more wisdom than to give it" |
Posted By: 87BFN owner
Date Posted: August-14-2012 at 2:55am
Posted By: BuffaloBFN
Date Posted: August-14-2012 at 10:11am
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I keep parts cards. FWIW-I have the 454 kit with gaskets-Sea Maxx Genuine PCM parts part# RPO26003. I thought it was a 143, but it may be a 145. I do remember having the 160 from an auto parts place, and it ran pretty hot. The only markings I see on the thermostat are on the top of the sensor 26 F5. ------------- 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: Hollywood
Date Posted: August-14-2012 at 4:04pm
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Yikes, thin skin alert ------------- |
Posted By: oledawg
Date Posted: August-14-2012 at 5:07pm
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You got that right... probably 'tis the season... ------------- "To profit from good advice requires more wisdom than to give it" |
Posted By: 87 BAREFOOT
Date Posted: August-14-2012 at 7:40pm
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OLEDAWG: I would check your gauge and temp sending unit. I have an 87 barefoot with the 454 and i have the EXACT SAME PROBLEM. 190 is a bit warm. After a good run around the lake i was showing almost 200 degrees on my gauge, when i checked it with one of the laser pointer temp readers it was actually only running about 150 degrees, which is not a problem. I check it periodically while running the boat, and my gauge always reads 40-50 degrees hotter than the actual engine temp. i suspect i have a weak gauge, sending unit or maybe a poor ground somewhere in the wiring. Anyone have info on trouble shooting the temp gauge circut? or maybe some wiring diagrams? |
Posted By: BuffaloBFN
Date Posted: August-14-2012 at 7:46pm
This will be your ticket I bet. ------------- 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: 87 BAREFOOT
Date Posted: August-14-2012 at 7:59pm
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OLEDAWG: I have the SAME PROBLEM with my 87 barefoot with the 454. I did a few hot laps around my lake and checked the engine temp with one of those laser pointer temp readers, and found out my gauge is actially reading 40-50 degrees hotter than the actual engine temp. my gauge was pushing 200 degrees when the actual engine temp was between 150-160 degrees. I suspect i have an issue with the gauge, the temp sending unit or maybe a bad ground somewhere. Anyone have any info on troubleshootong the temp gauge, or maybe a wiring diagram? |
Posted By: 87 BAREFOOT
Date Posted: August-14-2012 at 8:04pm
| sorry for the double post, thought my broser timed out and didnt post the first one.... my bad |