exhaust manifold

terry howell · New User Joined: 20 Oct 2012 Posts: 7 Report to Moderator

Hi to my J.D. buddies with all the anwsers to my questions. I'm trying to recondition my 60,the question I have is how do I know the correct position of the heat exchange valve. A friend of mine told me I would never get it freed up, but after 2 weeks liquid wrench it finally freed up.The new ones I see for sale have hot on one side and cold on the other. This being the original valve the letters are not readible. How do you determan the correct position? I should have marked the position before I turned it after getting it free, but as you can tell I didn,t, so this why I'm asking . Thanks to my Green Buddies!!

Rustys Restos · New User Joined: 02 Jan 2012 Posts: 9 Report to Moderator

Hi.the HOT position is for when the outside temperature drops to 32 degrees or lower.Check your owners manual for additional information.Impropper alignment may cause damage to the head.Have a good one.

NoDakInMN · Posted: Sat Dec 29, 2012 11:20 am Post subject: Re: exhaust manifold

If the position markers have corroded away to the point where they cannot be read, as you indicated, you may have to pull the manifold so you can observe the porting and position it correctly. At this point, since a new heat exchanger is only $30 or so, I would replace it. Since you say you are reconditioning the tractor rather than restoring it, I assume that you intend on using it rather than making it a trailer queen. As such, having the H and C marks would make future adjustment positioning easy and trouble free.

I suppose it could be possible to determine the position of the existing one by taking temp reading on various places on the manifold while the tractor is running, but having never done it, I cannot offer any advice on the feasibility of that.

Bspauld · Posted: Sat Dec 29, 2012 11:30 am Post subject: Re: exhaust manifold

If you have it wrong it doesnt take much running to see if its right or not. The intake gets hot right away if its in the wintertime postion. Around here most got rusted up because they never got changed to winter use.

Bob Harvey · Posted: Sat Dec 29, 2012 1:51 pm Post subject: Re: exhaust manifold

If you have freed it up you should be able to pull it out. Then you should be able to figure out orientation and mark it. Straight through is Hot, 90 degrees is Cold. HTH

Bob Harvey · Posted: Sat Dec 29, 2012 1:52 pm Post subject: Re: exhaust manifold

OOPS, sorry, forgot it comes in from the bottom. Major Brane Phart !! HNY

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