6v pos ground amp guage does'nt move when switch is turned on.

[reidoinmo]

Help!! everything seems to check ok. Problem started with a bad saddle switch and also changed Voltage regulator.

 

[Jim.ME]

Welcome to the forums.

Depending on how sensitive an ammeter is, you may not see it move when just the switch is turned on. This would be especially true if the engine has a magneto instead of a distributor or if the points were open in the case of a distributor.

It is best you always tell what you are working on.

 

[reidoinmo]

Welcome to the forums.

Depending on how sensitive an ammeter is, you may not see it move when just the switch is turned on. This would be especially true if the engine has a magneto instead of a distributor or if the points were open in the case of a distributor.

It is best you always tell what you are working on.

So the points must be closed for the needle to close?
I can't get it to crank the starter after changing the saddle switch. Also,Thanks for replying.

 

[reidoinmo]

So the points must be closed for the needle to close?
I can't get it to crank the starter after changing the saddle switch. Also,Thanks for replying.

For the needle to Move.

 

[Jim.ME]

So the points must be closed for the needle to close?
I can't get it to crank the starter after changing the saddle switch. Also,Thanks for replying.

There needs to be a current draw somewhere for the needle to move. Closed points would be the item in most cases that would see current, if they are closed, when the key is turned on.

Either the saddle switch is wrong/defective or the adjustment of the saddle switch must not be correct if it doesn't make contact to power the starter.

Again, please tell us what you are working on, we cannot see it.

 

[reidoinmo]

There needs to be a current draw somewhere for the needle to move. Closed points would be the item in most cases that would see current, if they are closed, when the key is turned on.

Either the saddle switch is wrong/defective or the adjustment of the saddle switch must not be correct if it doesn't make contact to power the starter.

Again, please tell us what you are working on, we cannot see it.

It's a 1953 super A industrial. HOW can I tell for sure the saddle switch is making contact with the starter?
It tests Good with the multimeter,and the starter passes the bench test. I've had it disassembled and reassembled three times and it is apart now.

 

[Jim.ME]

If it has battery power and is adjusted properly pulling the rod to engage the switch should energize the starter. If the starter doesn't turn I expect the switch is not contacting the starter post.

The moving contact inside a saddle switch has to make firm contact with the contact post on the starter housing (under the switch) when the starter rod is pulled. The switch mounting location may need to be adjusted some to make that contact.

 

[300guy]

A lot of the saddle switches I have seen are really junk. I have had to take several apart and adjust the copper contacts to get them to work!!

 

[DaveBN]

The post on the starter may be worn down after years of use. Take the starter to a good shop and have them put a new post on it. I did this on my C years ago and it made a big difference.
Dave

 

[miangus]

Clean points.

 

[used red MN]

HOW can I tell for sure the saddle switch is making contact with the starter?

By testing your starter on the tractor with the saddle switch removed. Since you say it is a positive ground hook one end of a jumper cable to the negative battery terminal on the battery. Get a 3/8” or so bolt at least an 1 1/2” long that is either plated or wire wheel buffed clean. Clamp it in the corresponding opposite jumper cable clamp to the one you have on the battery. Now with a deliberate motion firmly touch the bolt head to the lug on the starter case. If that cranks the engine you know anytime you operate the saddle switch that is properly connected and it doesn’t crank your switch is at fault. Make sure the tractor is in neutral before the above test.

 

[reidoinmo]

By testing your starter on the tractor with the saddle switch removed. Since you say it is a positive ground hook one end of a jumper cable to the negative battery terminal on the battery. Get a 3/8” or so bolt at least an 1 1/2” long that is either plated or wire wheel buffed clean. Clamp it in the corresponding opposite jumper cable clamp to the one you have on the battery. Now with a deliberate motion firmly touch the bolt head to the lug on the starter case. If that cranks the engine you know anytime you operate the saddle switch that is properly connected and it doesn’t crank your switch is at fault. Make sure the tractor is in neutral before the above test.

Thank you Gentlemen for replyng.
I'll post back what I find.