JD A Head lead washers

[Scott Bardman]

Is there suppossed to be lead washers under all the head bolt nuts or just the ones under the valve cover? Also is there a gasket for the bolt on port that transfers oil fron the head to the rocker assembly or is it just metel to metal?

 

[Shawn MN]

Just the nuts that hold the head on. Not the ones that hold the valve cover on. And no, there isn't a gaskest on that port.

 

[Mike M]

On the backside of the oil feed washer where it meets the head put some gasket schellac on it. I think the book says to also.

 

[JDNPC]

Scott, the lead washers keep the nut from gaulding the head as it is torqed down. I use a twist of solder right off the spool. Indian head gasket shellac is supposed to be used behing the other.

 

[Scott Bardman]

Thank you all for the replies

 

[F-I-T]

I may not be the sharpest tool in the shed, and for that reason, I like to refer to the parts book and service bulletins. The service bulletins say in more than section, that you are to place a lead washer under each head stud nut. The parts book says, 9 nuts used, 9 lead washers used. Seems to me that would mean lead washer under each nut...

No mention of any other sealant under the lead washers, which are used to lubricate the seating of the nuts, and also to force into the void between the stud and its bore to keep coolant from tracking past the nut. IMHO

 

[teddy52food]

How would coolant get around the stud? I have yet to see that in all I have worked on.

 

[Mike M]

Likely rare , but I could see it possible. Not much gasket area by the studs and also some models the studs go into the water jacket and possibly when brand new may of had potential to seep around the threads.

 

[F-I-T]

You'be never seen a rusty stud?

 

[Donald Bose]

Now days the gasket kits come with copper washers. this what we on all of our john deeres