Starter Bendix is it OK?
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Topic author - Posts: 878
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Starter Bendix is it OK?
I am getting ready to install a rebuilt starter in my 1927 coupe. Attached are photos of my original bendix. I would appreciate opinions on whether or not it is useable, or if I should purchase a new one.
I assume what is shown on left end of the teeth is normal wear. Is this a problem?
The end of the tooth, where the screw driver points in the fourth photo, is different than the ends of all of the other teeth. Is this a problem?
I assume what is shown on left end of the teeth is normal wear. Is this a problem?
The end of the tooth, where the screw driver points in the fourth photo, is different than the ends of all of the other teeth. Is this a problem?
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Re: Starter Bendix is it OK?
Your bendix is missing a shield where the teeth step down. Yes it is a problem. Your spring is no good also. Look for another bendix.
Last edited by Humblej on Tue Feb 14, 2023 4:05 pm, edited 1 time in total.
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Re: Starter Bendix is it OK?
Its totally fubar.
The counterweight is missing. Where did it go??
Spring is sprung.
Cant tell for sure if the drive collar is in tact, but, it looks a bit off.
The counterweight is missing. Where did it go??
Spring is sprung.
Cant tell for sure if the drive collar is in tact, but, it looks a bit off.
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Re: Starter Bendix is it OK?
The shield that is missing holds a pin and spring that stops the gear from working it's way into the flywheel ring gear when not being used.
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Re: Starter Bendix is it OK?
Bruce,
You can tell the spring is bad since the two ends no longer align with one another. It means that it's been over-torqued and it's bent out of shape.
You can tell the spring is bad since the two ends no longer align with one another. It means that it's been over-torqued and it's bent out of shape.
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Re: Starter Bendix is it OK?
Its a counterweight.
Its presence causes the gear to move into the ring gear when activated.
Once started the spring loaded pin in it keeps the gear from vibrating forward into the spinning ring gear.
Go to Langs catalog & see what its supposed to look like.
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Topic author - Posts: 878
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Re: Starter Bendix is it OK?
Thanks everyone! I will buy a new one from Snyder's or Lang's.
I am trying to understand the bendix. In the Lang's diagram, where is the "shield" and the "counter balance"?
I am trying to understand the bendix. In the Lang's diagram, where is the "shield" and the "counter balance"?
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Re: Starter Bendix is it OK?
5021G is it.
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Topic author - Posts: 878
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Re: Starter Bendix is it OK?
I meant to say "counterweight" not "counterbalance"!
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Re: Starter Bendix is it OK?
Another diagram with labels:
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Topic author - Posts: 878
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Re: Starter Bendix is it OK?
Where is the "counterweight"
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Re: Starter Bendix is it OK?
The parts you see in both diagrams are all there are. If you have all of the parts, regardless of what others call them, your bendix is complete. Your spring has been subjected to excessive slamming and is bad. The two bolt holes on the spring must be on the same side and the spring spirals must be straight and not angled. I have never heard of a counterweight on a bendix. At least Ford never referred to any parts as a “counterweight”, so there is no need to obsess about it. Jim Patrick
Last edited by jiminbartow on Tue Feb 14, 2023 11:06 pm, edited 2 times in total.
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Re: Starter Bendix is it OK?
The collar in the red circle. 5021G
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Re: Starter Bendix is it OK?
That collar has the counterweight built into it, all in one piece. It has three tabs on the onside diameter, which engage in three slots on the back of the gear. These slots are upset to fix the collar to the gear. These upsets frequently fail, and many times the collar is then bronze welded to the gear. This is a perfectly satisfactory fix. I wonder where yours went?
Part of the collar assembly is a tiny spring and plunger which helps to stop the gear drifting into mesh when the engine is running. the plunger and spring are also available from the vendors.
Hope this helps.
Allan from down under.
Part of the collar assembly is a tiny spring and plunger which helps to stop the gear drifting into mesh when the engine is running. the plunger and spring are also available from the vendors.
Hope this helps.
Allan from down under.
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Re: Starter Bendix is it OK?
"That collar has the counterweight built into it, all in one piece."
https://www.modeltford.com/item/5021G.aspx
"Part of the collar assembly is a tiny spring and plunger"
https://www.modeltford.com/item/5021PS.aspx
https://www.modeltford.com/item/5021G.aspx
"Part of the collar assembly is a tiny spring and plunger"
https://www.modeltford.com/item/5021PS.aspx
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Re: Starter Bendix is it OK?
I recently rebuilt the starter bendix with new parts from Lang’s. I had help from an experienced Model T owner and good thing I did. There are some special operations like “staking” one part onto the threaded end of the shaft. Anyway, all this to say you’ll have trouble finding a complete, assembled bendix as they currently are unavailable so far as I know. The individual parts you’ll need are available, however.
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Re: Starter Bendix is it OK?
Gerrit - I've rebuilt many Bendix drives as in replacing the counterbalance gear - I use Red Loktite on the sleeve AND stake it.
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Re: Starter Bendix is it OK?
Getting the bearing sleeve off the end of the spiral is the tricky bit. I do it by cutting two bullet head nails off just under the head, and putting the last bit of the nail shaft into the holes in the sleeve. The sleeve is then held in a vice with some soft jaws, and turned enough so that the protruding nail heads will stop it rotating in the vice jaws. With the bolt screwed in at the other end of the spiral, I use a large adjustable wrench to turn the spiral piece. It will ever-ride the upsets in the thread and allow the bearing sleeve to be wound off. Replacement is just the reverse operation.
When the bearing sleeve is replaced, it may end up stopping with the original upsets in the same place. If so, I take it off again and linish a bit off the end so it can be threaded on just a bit further. Loctie and stake it in the new place.
Hope this helps,
Allan from down under.
When the bearing sleeve is replaced, it may end up stopping with the original upsets in the same place. If so, I take it off again and linish a bit off the end so it can be threaded on just a bit further. Loctie and stake it in the new place.
Hope this helps,
Allan from down under.
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Re: Starter Bendix is it OK?
Thanks, I believe he did use Loktite as well. One other tip for the OP if he’s still around: when putting the bendix cover back on the starter, you’ll save time by starting one of the little screws first then sliding the cover in place. With the pedals and everything else in the way it can be daunting to line up the holes with the cover while trying to start a screw. One of my club members shared this with me.
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Re: Starter Bendix is it OK?
Good advice on getting the screw started first. However, not all covers have slotted holes.5 WoodenWheels wrote: ↑Tue Feb 21, 2023 7:59 amThanks, I believe he did use Loktite as well. One other tip for the OP if he’s still around: when putting the bendix cover back on the starter, you’ll save time by starting one of the little screws first then sliding the cover in place. With the pedals and everything else in the way it can be daunting to line up the holes with the cover while trying to start a screw. One of my club members shared this with me.
Yes, where is the OP?
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Re: Starter Bendix is it OK?
In a previous discussion of this topic, someone mentioned using a screw-holding screwdriver for the task, along with starting one screw and slotting the corresponding hole in the cover, all excellent ideas in my view. jb