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Rotax Preheat update pleae

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rampil

Joined: 04 May 2007
Posts: 870

Posted: Sun Jan 25, 2009 7:32 am Post subject: Rotax Preheat update pleae

Hi Guys,



Its been two years since preheaters have been discussed here.



Paul, Are you still happy with the Reiff?

Anybody else happy or unhappy?



Any new data on the JC Whitney variant?? Has someone found

an auto parts equivalent to the oil tank band heater and its thermostat??



It's 16F here today (brrrrrrrr, shiverrrrrrr) but bright VFR

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_________________
Ira N224XS

paul.the.aviator(at)gmail
Guest

Posted: Sun Jan 25, 2009 1:40 pm Post subject: Rotax Preheat update pleae

Hi Ira,



The Reiff is working fine for me.  He sells two variations for the

Rotax.  One heats the engine block, oil tank and the coolant. The

other model, which I purchased is minus the coolant heater.



When the unit arrived I realized it was something  that probably could

be fabricated easily by purchasing a couple of the small heating pads

from an auto parts store and putting one on the engine and one on the

oil tank. The Reiff heater does have thermostat for the oil tank, so

you would have to fabricate this as well.



BTW, Reiff did confirm that the cement for the pads is JB Weld



Paul

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paul.the.aviator(at)gmail
Guest

Posted: Sun Jan 25, 2009 1:42 pm Post subject: Rotax Preheat update pleae

BTW, it has just struggled up to 12F here.  I have been at the hanger

working on removing my engine, and although its heated, it was just

too darn cold to work.



 	  Quote: 	
		  

 It's 16F here today (brrrrrrrr, shiverrrrrrr) but bright VFR



 --------

 Ira N224XS

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craigb(at)onthenet.com.au
Guest

Posted: Sun Jan 25, 2009 2:55 pm Post subject: Rotax Preheat update pleae

16f hu, one thing, good performance at that temp, if you can get it warmed

up



--

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air.guerner(at)orange.fr
Guest

Posted: Mon Jan 26, 2009 2:48 am Post subject: Rotax Preheat update pleae

For those having the optional Rotax air guide around the  cylinders and the third round air intake in the cowling as specified by Europa  for the 912S, one solution is to preheat with an hair dryer plugged into  the air intake. I have been doing that for two years and it works really great.  With a 2000 Watt hair dryer, CHT and oil temp probes both show a 1 degree  Celsius (about 2 F) per minute increase. The whole engine block is being heated  by the hot air forced around the cylinders. However the oil tank itself is only  slightly heated by the warm air inside the cowling. Using this preheat  process the engine starts like in summer all the  time.

 Remi Guerner

 F-PGKL

  

  

  

  

  

  

 

Hi Guys,



Its been two years since preheaters have been discussed  here.



Paul, Are you still happy with the Reiff?

Anybody else happy or  unhappy?



Any new data on the JC Whitney variant?? Has someone found

an  auto parts equivalent to the oil tank band heater and its  thermostat??



It's 16F here today (brrrrrrrr, shiverrrrrrr) but bright  VFR



--------

Ira N224XS



    [quote][b]

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rampil

Joined: 04 May 2007
Posts: 870

Posted: Mon Jan 26, 2009 6:01 am Post subject: Re: Rotax Preheat update pleae

Hi Guys,



Thank you all for the feedback!!!  



I have been doing some searching around and found that the

Reiff block heating element is apparently the "Kat's Universal Silicone

Hot pad".  These are widely available in the US for about $20 (Amazon,

Napa Auto, Autozone, but not Pep Boys).



I am still looking for a band type element for the oil tank, although

another possibility is to us a 25-50 watt Kat's hot pad on the oil tank

since the pads are flexible down to 1" radius. (no compound curves)



I am also looking for thermostatic elements that can be mounted inline 

on the 120VAC and attached to the block and tank.

I take it from the absence of comments that the block pad's location

just above the muffler's aluminum heat shield is not an issue.

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Ira N224XS

rampil

Joined: 04 May 2007
Posts: 870

Posted: Mon Jan 26, 2009 6:27 am Post subject: Universal Silicone Hot Pads Update

Greetings All,



I just found an (the?) OEM for the heating pads



www.minco.com



They have an excellent engineering guide at:

http://www.minco.com/uploadedFiles/Products/HDG01_KL6_final.pdf



BTW: The silicone pads have an upper temperature rating of 455F

and can be affixed with many different adhesives including RTV#6

and Epoxy (JB Weld)

Minco also carries small thermostat elements as well

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_________________
Ira N224XS

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