Speaking of tachometers I want one for my H

rgrimard

Member
[color=blue:8831a09b62][/color:8831a09b62] If anyone with an H has a tachometer installed and I don't care if its Old or a newer one, I need one to make sure the PTO on my H does go higher than 480 RPM.
I have a Wood processor that is PTO driven and have to be watchful of the PTO rev's.
I would like to know where to purchase one. I have checked with Steiner's and Yesterdays Tractor and AG's Tractor yard.
Thank you for any feedback or suggestions.
 
H models never came with one and I have never seen one added. You have to have a way to drive it and the mechanical ones had a drive on the distributor. I don't know how newer ones are driven. Maybe some on here has made one work.
 
I have an electric tach on my SMTA. I ordered it through NAPA to get one that was for lower RPM applications. It is 12 volt though
 
[color=blue:caa7a18b78][/color:caa7a18b78] Sounds interesting ...I have a 12V system on my H.
Have you installed your Tach?? I would be interested to look at the Model number on your Nappa Tach if you have it handy so that I can reference it with my Nappa Store.
 
Buy one of those non contact tachs. Put the white tape on the pto shaft and then take a reading (best if not in sunlight). I think I paid $10 shipped.
 
[color=blue:a8f5d16ec3][/color:a8f5d16ec3] By the way...your SMTA looks very much like my H, bright RED. Mine has the Wide Front End, I think they actual Model is "HV" I'll have to upload a photo of it.
The Manual TC-27E shows it with the Wide Front End as the HV.
 
Just looked at Amazon first one I saw that I liked is Searon Technology part # wzxhm-hmo389 at $34.99. Says it is accurate to 10 RPM. Use hand tach on pto shaft to find 540 rpm, then note engine RPM on engine tach, you will then know what engine speed needed to run pto at 540. there are many more on amazon, just search for tachometer.
 
[color=blue:c4b35476d6][/color:c4b35476d6] MR John CT.... Yes I do have
the Hand Held device and it does work very well, the LCD read out is very nice as well..... But...since I'm by myself I think it would be much easier to Set the Engine Speed on the TACH at say 1800
and than check it with the Hand-Held to make sure I'm not exceeding 450rpm on the PTO.
Appreciate your contribution...its very helpful to me !!
 
[color=blue:73bbe910a0][/color:73bbe910a0] Leroy in NE....that is exactly how I wanted to proceed with this "TACH". We are on the same Page my friend. How difficult was it to install your Amazon TACH?? I know enough to fill a Thimble about Electronics. I'll go to Amazon in a few minutes and search for the Model # you provided and take a look see.
 
Charlie -I bought a used distributor drive gearbox off a 300 or 350 and a new tach & cable and installed a mechanical tach on my Stage II Super H in spring of 1969. All factory parts. Steiners sells the parts to install a mechanical tach from a 400/450 on an M/Super M. Lots more expensive than what I paid back in 1969 but I'll install one someday soon. It's nice having the hour meter to perform maintenance as needed.
 
Your PTO is geared directly to the engine, the pto turns 540 rpm at 1650 engine rpm. THAT will never change
unless the clutch on your H slips. The no load fast engine speed is probably around 1800 rpm, which would
be a pto speed of 590 rpm. Your engine turns 3.055 revolutions for each revolution of the pto shaft.
Simple math after that. You want 480 pto rpm, you want 1465 engine rpm.

Do a Google search on Laser photo tachometers and you will find them down to $8.99 each. Put a small, 1/8"
by 1/8" piece of reflective tape which comes with tach on the shaft, start the shaft spinning and point and
shoot at the tape, tach will show speed.

Bit of advice, remove batteries when storing the tach, if the batteries leak they destroy the tach.
 
Why not use a hand held tach on your PTO shaft. Adjust the engine speed to get the RPM you want and mark the throttle quadrant. The just set the throttle lever on the mark next time, speed should be fine. I run my combine and baler this way, no problem.
 
I have seen a tachometer fitted to a Farmall M, run off a 12 volt alternator. You need to know the relative speeds of the crankshaft and alternator shaft to make it work correctly.
SadFarmall
 
[color=blue:7178bacc44][/color:7178bacc44]
Thank you Dr. Evil.....you have enclosed a good piece of Information that has saved me probably several hours of research.
Good point about removing the Battery from my Digital Tach, I will do so very shortly before I forget to do it.
Once the Dang Snow leaves in early-Mid April around here i will conduct some further research on the PTO Speeds with my Tach.
Thank you again for taking the time to send me the reply and added info....appreciate it...Ron
 
OK but the OP will need the entire distributor drive and cable. I like the shaft tack route, or a aftermarket 4 cylinder tach for a coil and points system. Cheap. Even a Tach Dwell meter will work fine and then a new tool is on the bench. Jim
 
[color=blue:317bef4e83][/color:317bef4e83][color=darkblue:317bef4e83][/color:317bef4e83]
Paul from MI.....Im beginning to think the general thought is running in the same direction...just use a Hand Held Tach as you and a couple others have suggested. I think the Hand Held is the way to go and I agree it would be much easier than hooking up a Digital Tach since I'm only concerned with just one implement, the Wood processor. I shall proceed in that direction, no point in making a Mountain out of a Mole hill!!. Thanks for your reply..Ron
 
[color=darkblue:1aa1baeb96][/color:1aa1baeb96]
Thank you Mr. SadFarmall (Neal) I think I may have found my answer to the easiest and fastest solution to what I need to do.
I already have a nice Digital Hand Held Tach so I will go with that approach.....thank you for your reply...Ron
 

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