Gain extra benefits by becoming a Supporting Member Click here find out how!

Classic Performance Products Nu-Relics Power Windows
American Auto Wire Hellwig Products IncPerformance Rod & Custom
Danchuk Catalog



Username Post: Why do hammers temporarily fix starters?        (Topic#365849)
ranman 
"2nd Year" Silver Supporting Member
Posts: 10834
ranman
Loc: The cold wet and windy O...
Reg: 03-10-01
07-18-21 10:55 PM - Post#2823476    

I have a 1993 Chevy S10 with a 4.3. the starter is a Delco or GM gear reduction model.
I drove up 50 miles to a job site today and parked it.
5 minutes later I decided to move it forward a few feet to make unloading some tools easier. I turned the key and it clicked. Battery voltage read 12.7
It didn't make that quickly clickity clickity clickety sound but everyone is familiar with. Just a single click and no attempt to start the engine.
The same thing happened almost a year ago. The battery was charged and they were just a quick each time you turned the key.
A friend suggested tapping the starter with a hammer.
I have nothing to lose so I gave it a try. then another and another and another. I was tapping very lightly.
After the 5th or 6th attempt, the starter came to life. It's for fine for almost a year and now it did it again.
Tapping gently with hammer made the starter come to life again.
My question is why? I mean why would tapping this starter temporarily fix this problem. Brushes hanging up or possibly the solenoid? .... I didn't tap on the solenoid, I tapped very very lightly on the end of the starter.
If it's just a brushes hanging up I'd rather replace the brushes.
If it's the solenoid, I'd rather replace the solenoid.
I may just end up replacing the starter with a rebuilt because I can't find a new gear reduction starter for a 1988 S10.
My question isn't about replacing the starter.
My question is why would tapping with a hammer temporarily to fix the starter.




~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~
If plants ruled the world, would they regulate oxygen?


 


GreatNorthWoods 
"6th Year" Silver Supporting Member
Posts: 1286
GreatNorthWoods
Age: 79
Loc: Littleton, New Hampshire,...
Reg: 03-31-02
07-19-21 02:00 AM - Post#2823479    
    In response to ranman

Over time the bushings that hold the armature in place wear out. The distance of the armature from the fields is very close so when the bushings get too worn the armature wobbles a bit and if it touches the field windings it sticks in place due to the magnetic field. When you hammer on it the armatures moves just enough to allow it to turn without sticking to the field winding. Best to replace the starter when you can because eventually tapping on it will no longer work. If you are really adventurous you could disassemble the starter and replace the bushings. Might as well replace the brushes too while you're in there.

Vern

1953 Chevy Belair Sport Coupe - 355 Chevy V8, 700-R4, 4-wheel disc brakes, Ididit column, cruise/tilt,'59 Vette Steering Wheel, A/C

1930 DeSoto Business Coupe- 350 Chevy V8, EFI, 4-wheel disc brakes, Wire Wheels, TH400, S-10 Rear, A/C


 
454cid 
Valued Contributor
Posts: 3211

Age: 48
Loc: West Michigan
Reg: 02-18-12
07-19-21 04:13 AM - Post#2823482    
    In response to ranman

I think the normal procedure is to tap on the side of the starter. It wouldn't work for me until the key was turned at the same time as the whack, which I think I was told later is typical. In my case I'm pretty sure it was the contacts in the solenoid... they were burned and worn.

I assume you're jiggling things just enough to make the needed connection. I've done the same with my fuel pump.... whack the gas tank in the right spot to jiggle the pump.

I replaced my starter with a new Korean made AC Delco. It works well, but I was a bit disappointed that my factory heat shield wouldn't fit it.

99 K3500 RCLB


 
ranman 
"2nd Year" Silver Supporting Member
Posts: 10834
ranman
Loc: The cold wet and windy O...
Reg: 03-10-01
07-19-21 09:26 AM - Post#2823502    
    In response to 454cid

Thanks guys I appreciate the responses.
I'll add a tidbit more information. I had the serpentine belt decompose itself. A few of the belt layers separated and broke as it whipped around inside the engine compartment it batted at the insulation on the hood. A couple of months later is when my starter had this problem the first time. I put the truck up on ramps and hosed it down on the outside with some brake clean. I noticed the teeny tiny strand of a fiberglass looking material in the weep hole on the brush side of the starter. I got an L shaped pic and got that thin strand to fall down enough that I could grab a hold of it. It was probably 6 in Long. It was a very narrow strand of material and it was slippery probably because of oil contamination and it was like black ink on your fingers.
So I pulled that strand out of there a year ago and the starter has not missed a beat since then so I figured I had the problem cured.
I do not know if that oily little strand that I pulled out of there was actually from the hood insulation. I can't think of anything else inside of a starter it would be like that.
Anyway it's really weird that the starter malfunction once, I pulled out that strand, and the starter work fine for an entire year before it did this again yesterday. I may pick up brushes and a solenoid and take the thing apart. If the insides looks good, I may just replace the parts that need replacing.
Last week, I put $500 into the front end of my truck and my trucks probably worth that much. ????
I'm just trying to limit what I spend on this.

~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~
If plants ruled the world, would they regulate oxygen?


 
Rick_L 
Member #409
Posts: 27882
Rick_L
Loc: Katy, Tx, USA
Reg: 07-06-00
07-19-21 12:09 PM - Post#2823508    
    In response to ranman

I can't respond to the science of hammers on starters because there isn't any.

  • Quote:
I can't find a new gear reduction starter for a 1988 S10.



I don't think you'll find a factory gear reduction starter listed for an 88 model because they hadn't started using them yet. But there's probably a 90s model that used the same engine that did. That's certainly true of V8s which started using gear reduction starters in 1994.



 
TAT_2 
Site Ambassador - Member #26 - "20th Year" Silver Supporting Member
Posts: 37243
TAT_2
Age: 68
Loc: "UNDER THE BOARDWALK"
Reg: 10-29-00
07-19-21 01:35 PM - Post#2823512    
    In response to ranman

value="transparent">

09 PONTIAC- VIBE
08 PONTIAC- G6
93 VETTE - 40TH ANNIV- RUBY RED- LT1/6-SPD/RAG TOP

PREVIOUS VETTE'S 58,68,70,76,78,85,90


QUOTE FROM HELEN
"WHY YOU LOOKING AT THAT? YA KNOW YA WANT ANOTHER VETTE"












 
ranman 
"2nd Year" Silver Supporting Member
Posts: 10834
ranman
Loc: The cold wet and windy O...
Reg: 03-10-01
07-19-21 02:16 PM - Post#2823517    
    In response to TAT_2

I hope you never leave this place.

~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~
If plants ruled the world, would they regulate oxygen?


Edited by ranman on 07-19-21 02:16 PM. Reason for edit: No reason given.

 
ranman 
"2nd Year" Silver Supporting Member
Posts: 10834
ranman
Loc: The cold wet and windy O...
Reg: 03-10-01
07-19-21 02:18 PM - Post#2823518    
    In response to Rick_L

The truck is a 1993. Engine code says 1988. The truck also has a 700R4.
Original truck should have had a 2.8 and a 5-speed so somebody obviously made a swap.
Maybe previous owner got a starter for a 93 4.3 and that's why I have one.
I appreciate you pointing that out.

~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~
If plants ruled the world, would they regulate oxygen?


Edited by ranman on 07-19-21 02:21 PM. Reason for edit: No reason given.

 
ranman 
"2nd Year" Silver Supporting Member
Posts: 10834
ranman
Loc: The cold wet and windy O...
Reg: 03-10-01
07-19-21 02:34 PM - Post#2823519    
    In response to Rick_L

And as far as the hammer goes, Rick. It's called kinetic energy. It works on nails and it works on nuts and bolts. It fixes all kinds of stuff. Trust me if you're 50 mi out of town and it's 85° and there's no other way to get home. The hammer is the science of choice.

~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~
If plants ruled the world, would they regulate oxygen?


Edited by ranman on 07-19-21 02:34 PM. Reason for edit: No reason given.

 
someotherguy 
Senior Moderator
Posts: 29435
someotherguy
Loc: Texas
Reg: 08-01-03
07-21-21 06:16 AM - Post#2823612    
    In response to ranman

  • ranman Said:
And as far as the hammer goes, Rick. It's called kinetic energy. It works on nails and it works on nuts and bolts. It fixes all kinds of stuff. Trust me if you're 50 mi out of town and it's 85° and there's no other way to get home. The hammer is the science of choice.


85° We call that vacation weather..

But yes.

Richard

06 Silverado ISS / 06 Silverado SS / 06 300C SRT8


 


Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

287 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.692 seconds.   Total Queries: 17   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 11:52 AM
Top