3400 broken tach needle

Jetbird

Member
Hi, I searched the forum with no luck so here goes. My '68 3400 gasser had a jumpy tach. It got worse when cold outside. Then the needle broke off where the thin part of the needle meets the thicker part. I epoxied it back on. Today it broke off in the same spot, then the remaining part of the needle including the little bushing that presses onto the shaft of the tach came off. What is going on? Can it be fixed? I want a tach but no way am I buying a new cluster for 150 bucks. Thanks in advance for any input.
 
(quoted from post at 21:03:30 01/27/15) Hi, I searched the forum with no luck so here goes. My '68 3400 gasser had a jumpy tach. It got worse when cold outside. Then the needle broke off where the thin part of the needle meets the thicker part. I epoxied it back on. Today it broke off in the same spot, then the remaining part of the needle including the little bushing that presses onto the shaft of the tach came off. What is going on? Can it be fixed? I want a tach but no way am I buying a new cluster for 150 bucks. Thanks in advance for any input.


I just bought a new instrument cluster for my 3000. I searched and found it for 95$. It was worth it to me being my old one was hard to see. Also if the tach is not working properly then your hour meter is not counting right if your tractor has an hour meter.
 

I have taken a match stick, and glued it on. Paint it red,,, overlap it a bunch!!!!!.. and even though its a bit short, the overlap will keep it in place... Been 20 years or better now and still working.
 
With the match stick you could put a strike pad near redline so if you over-rev it'll light and the flareup will tell you to pull back :)


I'd use the match stick or if you want it to look better cut a few pieces of lightweight stiff plastic (2 liter bottle) and glue them onto the bushing. Paint it and you're good to go.
 

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