chain tensioner gasket?

[madkaw]

This is the only gasket in my 2 kits. Look right?

Edited July 2, 2015 by madkaw

[siteunseen]

My Top Line kit doesn't have one at all. Your better off than me.

[madkaw]

Don't ever remember using a gasket there before. Last rebuild I didn't use one. The ' how to rebuild' book says don't forget it!

It is 2 machined surfaces so it probably seals okay without it.

This gasket I have seems incomplete, so I don't want to use it.

Dilemma!

[siteunseen]

I've taken 4 stock motors apart in the past few years and don't remember any of them having one. 

[djwarner]

If you have a set of punches, they can easily be fabricated from gasket paper. I did this during my overhaul when the one included in my gasket set was damaged.

[Diseazd]

I don't have 'em in any of my motors. No problem. Like you say..........the two machined surfaces seal tight. I certainly wouldn't use that gasket....... Doesn't look like it would seal.

[siteunseen]

I've been looking around and none of the kits show one, but the "how to rebuild" says it plain as day.  I missed that on the last motor. 

  

I think I'll use a light film of this;

[madkaw]

I'm not going to sweat it. No gasket. I definetly don't want to use this half gasket in the kit. Don't know if it was meant to be that way or defective.

Thanks for the input guys

[madkaw]

It reminds me of when I rebuilt my 1980 Kawasaki 1000 motor. No gaskets between the casing halves. When I asked Schnitz Racing about it, the mechanic said he uses nail polish sometimes. I just kind of looked dumb at him. He said it's Japanese precision, doesn't need gaskets. They might put a thin layer of that stuff you have Cliff, and that's it.

[beermanpete]

The motorcycle engine does not use a gasket becasue it will affect the bearing clearance and is not predictable enough to include in such a critical location.

 

The Nissan service manual shows a gasket, so it should have one. Leaving it out probably won't cause any problem but if the fit-up is not very good the oil leak could degrade the tensioner performacne somewhat. I would make a gasket myself from a sheet of gasket paper as suggested by DJ. If you don't use a gasket at least make sure there are no burrs or gouges on the mating surfaces.

[Jeff G 78]

I don't remember ever using a gasket there and I've never had a problem.