D2 5U head rebuild

It's all in the specifications....
#1 seat width is 0.106 to 0.110 in.
#2 full contact all around.

To me its like going to the doc and asking what has to be done and then telling him he is wrong or ignoring his advice a pretty pointless exercise just my two bobs worth

Paul

I believe the key words are: "Need to find a way to pay".....Yes these are VERY expensive toys......
I have always believed that if it is a production machine then do it!
If it is a machine that will get 100 hours of "play time" a year then I have been known to have an issue with spending the money.
Depending on the Tractor model (D2) and location you may never see a return on your investment.

Thanks for all the advice every one I think I should go for it and get it done the right way!

To me its like going to the doc and asking what has to be done and then telling him he is wrong or ignoring his advice a pretty pointless exercise just my two bobs worth

Paul

[quote="mrsmackpaul"]To me its like going to the doc and asking what has to be done and then telling him he is wrong or ignoring his advice a pretty pointless exercise just my two bobs worth

Paul[/quote]

There are an awful amount of surgeons out there that all they want to do is cut,cut,cut, and sometimes unnecessary---it always pays to get a second opinion on anything!
As drujinin said it all depends on how hard and long you will run it to determine if its worth the extra work when items are all in spec.

Doesn't appear to be enough valves out there to do the job.
May be a Cat item....pricey!!!
Try Off Road Equipment in Tn.
Intake 4F5856
Exhaust 4F2719

One concern I discovered on a d2 (d311) is if the valves and seats r ground to much the valves will set to low for the decompression to work, you can adjust the valve clearance but not the decompression, If there is a way to do this that I am missing I would like to hear it.

If your guides are in spec leave it, it will last for another 50 years as a toy, Inspect the valves to see how they are seating, a picture is worth a thousand words, I am not big on replacing parts that are good.

If you were Amelia rebuilding a engine for the Spirit of St Louis for the big trip it would be a different story.

You don't want to have the valves recessed too far into the head on any Diesel...it does affect compression, & therefore starting. Like you already decided, do it right. Even if it's just a play tractor, you don't want one that misses & slobbers for 5 min. when you do finally get it started...a half-ass valve job will always be regretted.