clearance specs for intake and exh valves for Farm

Hot set on valves means the oil temp is at 140 deg
and then the engine shut down . Bar engine over and
set one cyl at a time when that cyl is at tdc .

george

Frankiee,
If I ever catch anyone in my shop with a feeler
guage in a running engine , I will apply a size 9
squarely in the seat of learning and hoping it goes all the way to the shoulders. I don't buy feelers
to have them ruined in a running engine.

George
My question asked for the spec. on the valve lash if anybody knew it off the top of their head. My manual on engines at my fathers says to do a running adjustment if possible.
If I could get a hot spec then it was possible because the engine was easy to put oil shielding around for the flying oil. It is a recommended procedure which I use when I can for the sake of accuracy. Yes I do some time shut down the engine when making an adjustment because it is getting messy even when using oil defectors on the rockers. In that case I sacrifice some accuracy.
I do not ruin my feeler gauges when doing this procedure and don’t know why I would if it is the recommended way of doing things.
I dug up some info I have here at hand at my place and have it below on the bottom of this post.

I am 41 years old. Been working on the farm and bush from a young age like many here. At 17 entered the “futures” program repairing small engines professionaly . At 21 worked in a BMW specialty shop rebuilding engines and adding turbochargers. Adjusted many mechanical valves both ways. Am now in 3rd year marine engineering and do running adjustments. I have read many books on the subject over the years and it is usually recommended that if possible to adjust with engine running although with engine shut off, is an acceptable shortcut if done fast.

I did get the answer to my question thanks to this site. And I thank the person who gave me the answer.

The answer was .017(Hot) for both intake and exhaust

I have since adjusted the lash with engine running for the best results and my feelers are in fine condition.

If at your house you would boot someone for doing it other then your way then thats your business.
At my house I treat others and other methods with respect. If I thought the method was not right I would question it and ask for proof of the method.

I guess I should thank you for the reply. It would be the respectfull thing to do being you took the time to type it out.
Thank you.

From “Auto Engines and Electrical Systems” Sixth Edition
Blanchard and Ritchen
Motor publishing 1973

Page 54 (Valve System Service)
“Normally, when the manufacturer specifies that valve adjustment should be carried out when the engine is hot, it is done with the engine running. However, with some engines this is not easy as splash oil all over the outside of the engine. So either a guard of some sort must be rigged to protect the mechanic, or the adjustment must be made with the engine stopped. On those engines where it is specified that the clearance should be measured when cold, the adjustment is always made with the engine stopped.”

Page 52 (Valve System Service)
Warm Valve Adjustment
….The actual temperature or the oil is not as important as stabilizing the oil temperature. The expansion of contraction of the valve mechanism, cylinder head and block are relative to this oil temperature. These parts stop expanding and valve clearance changes cease to take place only after the oil temperature is stabilized. Then the vales are adjusted with the engine running at normal idling speed.

I read that book many years ago ,and it is a reprint of much older info. I have an engine rebuild
shop and have been doing truck , tractor , and
industrial engines for more than 30 years . Also do some automotive engines. If you want an accurate valve setting do it with
the engine stopped, if you want a flatrate job do it running . 3/4 of the engines I work on, come
in without the vehicle or tractor or the frame that they normally run in and are expected to be
ready to start and run when they leave. Some of
which we test run in a stand for at least an hour.

And for allen , Many of the ind engines have marks on one of
3 places( accessory drive , damper, or flywheel )
that are for setting the valves . If you are good enough
to see that mark and feel the clearance at that point and no other , you are a genious .

A few solid lifter engines that set stopped --
cat, cummins,detroit,mack .

george

Hot and running means just that: Hot AND running.

Maybe George was having a bad day 'er somptin'; because nobody, but nobody who has been around and has had experience with solid lifters for any length of time ever adjusts valves static. Too darned much room for error.

Just my view and stated as such,

Allan

Link

It's amazing what a quick search of the site will turn up!

Heck, if we made it any easier, we'd stop by and do it for you!!!