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Engine Discussion of preventative/corrective maintenance and other technical issues regarding your coach's engine.

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  #11  
Old 07-30-2017
mpierce mpierce is offline
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What? And miss out on the pleasure of having gallons of anti freeze run up your sleeve? Not me!
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Melvin and Charlene Pierce
Scranton, ND
"Smoke N Mirrors" Royale Conversion
1990 PT40WB
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  #12  
Old 07-30-2017
Wsufans Wsufans is offline
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Thanks. I think mine has the big rectangular plate. Taking the AC compressor off makes sense.

I measured the resistance and find really high resistance, essentially an open circuit. I assume that element breakage or ?? is the failure mode.

So if you remove the AC pump do you replace it? My dash air doesn't work. Reading some posts talking about how much HP it sucks up is it worth fixing. Or should I just run the genney (assuming I can get it running again) and using the coach AC.
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Paul & Janice Olson
Morrison, Colorado
Mi-Vida-Loca
1984 PT40
KoWSU
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  #13  
Old 07-30-2017
LarryKehler LarryKehler is offline
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Posted this in wrong thread:

Quote:
Originally Posted by LarryKehler View Post
Its behind the compressor on the block. It is hard to see. YOU HAVE TO REACH BEHIND THE COMPRESSOR. You should be able to feel the wires coming out of a plug. Follow the wires to the box.

O'Reilly part number 30304 Kats brand 1500 watt 120 volt.
Here is the part number for KATS brand from the thread of my replacement.

Also Randy recommended installing an outlet to plug in the heater plus available for other plugins. I made that mod to my coach.
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94 WB40 WBDA "BAM"
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314-378-9882
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  #14  
Old 07-31-2017
mrkane mrkane is offline
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Replaced mine 01/2017: correct part for my 8V92 is Zerostart 8601704.



Inner view of original.



Outer view of original





Note the orientation of the original: Be careful, mine only went in one way. (Also, got the 1712 unit first, which could not be configured to fit. Sent it back for this one which worked.)

--M.R.Kane
1987 PT40 'Sleipnir'
currently Iron River, MI

Last edited by mrkane; 07-31-2017 at 01:59 PM.
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  #15  
Old 08-01-2017
Wayne64SS Wayne64SS is offline
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Quote:
Originally Posted by Randy Dupree View Post
i take the air cond. compressor off and do the job from the top.
^^This.
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Wayne
Duanesburg, NY
1990 WB - sold
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  #16  
Old 08-01-2017
mpierce mpierce is offline
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1712 vs 1704. Man, NOT what I wanted to hear! I have NOT tried my 1712 yet. Looks like I should order a 1704, and have on hand too, BEFORE I drain the system down!

Thanks.
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Melvin and Charlene Pierce
Scranton, ND
"Smoke N Mirrors" Royale Conversion
1990 PT40WB
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  #17  
Old 08-01-2017
Wayne64SS Wayne64SS is offline
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I don't think it matters man. I did one in my 90 before it sold. Does the one you have look like this? I don't remember what part number I bought but it looks like a 1704 from comparative pics.... mrkane what about yours didn't fit? The only thing I can see being different is the hole for where the plug is?
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Wayne
Duanesburg, NY
1990 WB - sold
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  #18  
Old 08-01-2017
mpierce mpierce is offline
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To the naked eye, yes.

But, MRKANE tried the 712, and said he could NOT get it to fit.
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Melvin and Charlene Pierce
Scranton, ND
"Smoke N Mirrors" Royale Conversion
1990 PT40WB
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  #19  
Old 08-01-2017
mrkane mrkane is offline
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WRONG PART FOR '87 8V92:





Wrong part 1712



1712 is wrong part

Sorry, don't have side-by-side photos, as the 1712 went back to get the correct 1704. Also didn't get photo of new 1704 as it was identical to original, and I was in a hurry to get back on the road. As I recall, the hole is in a different place, and the curvature of the element was also different between the two versions.

Note the instructions say: "Do not start the engine with the heater plugged in. Turbulence and air bubbles can cause hot spots on the heating element and can result in element failure."

--M.R.Kane
1987 PT40 'Sleipnir'
currently in Iron River, MI

Last edited by mrkane; 08-01-2017 at 09:13 PM.
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  #20  
Old 08-02-2017
Wayne64SS Wayne64SS is offline
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interesting.
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1990 WB - sold
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