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#1 bbuckler OFFLINE  

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Posted February 15, 2015 - 05:54 PM

I got a question. I read on a website that I could use copper rtv thinly when installing new head gasket to help guarantee a seal but now someone on the cub group said I should've done that. Do I need to take back apart ?


Edited by bbuckler, February 15, 2015 - 05:57 PM.


#2 glgrumpy ONLINE  

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Posted February 15, 2015 - 06:18 PM

Stock head gaskets shouldn't need ANY seal on them. If you look, they are two metal layers with a soft inner layer that allows the metals to move and fill-in low areas when torqued right. Tightening in sequence and using lower torque for first time and spec for last time is best way to put on a head-gasket.

 

Copper seals and such are for Racers with high compression engines and such. AND, think that would only be in cars/trucks too, but might be wrong there with all the Pullers that are messing with things now days.

 

I Don't think it will need removal, should still seal good, just not needed, you're good there.


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#3 Bolens 1000 ONLINE  

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Posted February 15, 2015 - 06:41 PM

You should not need any sealant on a new stock gasket .....


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#4 bbuckler OFFLINE  

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Posted February 15, 2015 - 06:43 PM

You should not need any sealant on a new stock gasket .....

I was going by instruction from a website.  

 

 

 

And for general yard work, to lessen the chance of a blown or leaking head gasket, seal the head gasket with either VersaChem - Mega Copper SiliconePermatex® Ultra Copper® Maximum Temperature RTV Silicone Gasket Maker or Copper SPRAY-A-GASKET Hi Temp Adhesive Sealant. Apply it on both sides of the head gasket or cylinder head and engine block. And always torque the head bolts in the correct sequence to proper specs. From http://gardentractor...com/cylhead.htm

Edited by bbuckler, February 15, 2015 - 06:45 PM.

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#5 Kyocum OFFLINE  

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Posted February 15, 2015 - 06:45 PM

I was going by instruction from a website. 

I believe I would stick to the advice of the Kohler service manual.


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#6 bbuckler OFFLINE  

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Posted February 15, 2015 - 06:48 PM

My question I'm going have to take it off and strip off the rtv or will it be ok ?



#7 Gabriel OFFLINE  

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Posted February 15, 2015 - 07:23 PM

I may be wrong, but if you torque the head like the Kohler service manual says to, I don't think it would hurt anything. Like I said, I may be wrong.


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#8 bbuckler OFFLINE  

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Posted February 15, 2015 - 07:24 PM

If it runs fine then I'm not going to tear it back apart.


Edited by bbuckler, February 15, 2015 - 07:30 PM.


#9 TokyoDrift99 OFFLINE  

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Posted February 15, 2015 - 07:34 PM

You shouldn't need it. Engines that we mess around with are pretty low compression, so rtv shouldn't be necessary. I wouldn't worry about it, but if you rip it apart to wipe it off a new headgasket should be used as it has been compressed. However I've reused headgaskets w/o issues. 


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#10 bbuckler OFFLINE  

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Posted February 15, 2015 - 07:41 PM

This isn't a new head gasket in the first place (one month old) it was leaking in one area but when I checked the head wasn't warped but I put a head bolt in and it was little bit longer so I put the old one back.


Edited by bbuckler, February 15, 2015 - 07:42 PM.


#11 Bill 76 ONLINE  

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Posted February 15, 2015 - 08:19 PM

I would be leary of any head gasket with silicone on it handling the heat.We used to use copper coat on steel shim gaskets on auto engines but it was to help with the sealing around the water holes now we use halomar again just for sealing the water holes.

Like the other guys said don't put anything on it.   


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#12 bbuckler OFFLINE  

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Posted February 15, 2015 - 08:27 PM

I would be leary of any head gasket with silicone on it handling the heat.We used to use copper coat on steel shim gaskets on auto engines but it was to help with the sealing around the water holes now we use halomar again just for sealing the water holes.

Like the other guys said don't put anything on it.   

Since I already did I'm thinking about going ahead and running it and just watch it closely.


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#13 toomanytoys84 ONLINE  

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Posted February 15, 2015 - 10:09 PM

I see nothing wrong with using it. Probably over kill. I've haven't had too many failed head gssketd
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#14 superaben OFFLINE  

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Posted February 15, 2015 - 11:45 PM

The copper spray will not hurt your head gasket.  Yes, it is overkill, but yes, I have done it myself! 

 

If you have a compression leak around your head gasket, I would make sure you follow Kohler's strict torquing procedures (oil and all) and then run your engine a little bit richer.  Lean engines overheat which cause gaskets to leak.

 

Ben W.


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#15 dodge trucker OFFLINE  

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Posted February 15, 2015 - 11:56 PM

I would never use any kind of RTV on any head gasket;  IF I used ANYTHING, it would be either the Copper Coat spray/ or if not that maybe the Permatex "Hi Tack" spray. but for a head gasket for a small engine I can't say that I remember "ever" using anything on a head gasket at all in 35 years of playing with them (since I was 12)

 

I have never been an RTV fan for anything, though some use it (by itself) for anything from valve covers to oil pans and water pumps, the only thing I can ever get to seal with that crap is rear end covers.

the only other place I'll use RTV is doing an intake manifold on a V8, in the 4 corners where the end and side gaskets meet.

I have seen people though that think they need a whole tube on a thermostat housing, and wonder why that new thermostat "don't work" after they plug them up with the crap.


Edited by dodge trucker, February 15, 2015 - 11:56 PM.

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