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Darrell Black, DVM (Darrelldvm)

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Posted on Tuesday, June 14, 2005 - 12:36 am:   

After a short morning drive of 1 hour, the 4106 would not start. Could hear the solenoid, but no starter sounds at all. Battery voltage 13.2. When the starter button was activated, there was only a small voltage drop, not the big needle deflection that is normal when those D-8's turn the 8V-71. Tried to start all day. Then, the next morning, started as if nothing were wrong. Drove for 10 hours and turned off and then restarted withhout any problems. Hasn't happened since, but something is wrong and I'm hesitant about driving for fear of a recurrence. Help.
Jtng

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Posted on Tuesday, June 14, 2005 - 12:41 am:   

Bad selenoid?
Tom Caffrey (Pvcces)

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Posted on Tuesday, June 14, 2005 - 2:13 am:   

Bad brushes can cause this behavior, as well. Also, if the fork adjustment is far enough off, the starter will fail to rotate after the solenoid pulls in.

We have been through these problems.

Also, we got a rebuilt that had the wrong armature in it. It was a little less that 1/4" short. That damaged our brush holders and knocked it out of commission.

For what it's worth.

Tom Caffrey PD4106-2576
Suncatcher
Richard Bowyer (Drivingmisslazy)

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Posted on Tuesday, June 14, 2005 - 8:09 am:   

If it ever happens again use a wrench or big screwdriver (that you do not want and are not in love with) and jumper across the starter solenoid terminals. You will get a big arc probably and will possibly damage the tool you are using, but this will definitely eliminate the solenoid as the problem. If you get no arc, then you have a starter problem. If you get a big arc, then replace the solenoid.
Richard
Charles Seaton

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Posted on Tuesday, June 14, 2005 - 9:36 am:   

Had a GM T8H5306A transit for a few years and when the batteries got a little weak the bus would not start after being run. About 15 minutes later it would start fine and there was no problem when the batteries were replaced.
Sojourner (Jjimage)

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Posted on Tuesday, June 14, 2005 - 9:42 am:   

Or for amateur person use voltmeter instead wrench or large screw-driver or hammer. I have my glasses for spark shield on when I do what Richard suggested.

It work but with caution. I still have my “branded” “wedding band” ring around my finger to prove my accidental grounding to automotive starter’s metal heat shield.

So I remove wedding ring temporary everytime working any project.

What Tom Caffrey posted is true if you just exchange for rebuild (unknown incorrectly adjusted) starter w/solenoid, sometime.

If no voltage or very little between both large solenoid's lugs while in cranking mode, then starter brushes worn-ed or poor connection there or else where. If starter is ok, and if near or at battery’s voltage at good working solenoid primary lug while in cranking mode, then check for poor grounding.

FWIW

Sojourn for Christ, Jerry
mel 4104

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Posted on Tuesday, June 14, 2005 - 10:48 am:   

we are back to the old story of check your grounds, the one on the rear bulk head can give you this problem. it did me one time when we were on a trip to AZ.in the middle of a sleet storm so asked for help and it cost $100 to have the ground cleaned. when it would not start, it would just click and when you put your hand on the starter and had some one upsh the start button you could feel the sel. try to operate. when we put heavy jumpers on it and got it goingand to Skips shop and told him what the trouble was he just laughed at me and got out the tools and a angle grinder, went under the bus and worked on the ground straps, came out and got in and the damed thing started right up. that was 12 years ago and by keeking the grounds clean it has never happened again and i am still using the same starter and the same 8D batteries, they have never been repaired or changed although the batteries must be due for a change out but i have a solar pannel the keeps them up and i watch the water level closely. but the $100 repair bill like Skip said i would never forget and i would always look after the grounds and he is right.
Frank Allen

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Posted on Tuesday, June 14, 2005 - 12:29 pm:   

Listen to Mel, hes right on target, this needs to be done about once a yr
Frank Allen
4106
R. Steve Nichol (N4rsn)

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Posted on Tuesday, June 14, 2005 - 3:04 pm:   

Yelp: Mel's right 100%
Steve
4106
joe bigwind

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Posted on Tuesday, June 14, 2005 - 9:44 pm:   

I'm with you fellas, I replaced the starter and the cables from the batteries to the starter. Finally found that the lock washer under the ground connection on the bulk head was cracked. Check the cables and all connections first!

joe shelton
Darrell Black, DVM (Darrelldvm)

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Posted on Wednesday, June 15, 2005 - 12:51 am:   

When you guys are talking about the ground on the bulkhead, are you talking about the grund in he battery compartment?
mel 4104

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Posted on Wednesday, June 15, 2005 - 10:59 am:   

check all groundsbetween the startedr and the batteries.
Gary Carter

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Posted on Wednesday, June 15, 2005 - 3:36 pm:   

Darrell the starter has a ground strap that attaches the bulkhead, plus there is also a ground strap at the batteries. Go back and read Mel's post.

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