clutch safty switch
Cargo Master
Joined: Sep 2006
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From: Evansville, Indiana
5th Wheeling
Joined: Dec 2020
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Don't "fix" the switch unless you can't remember to take the truck out of gear prior to starting. Jumper the wires and never look back.
Having to push in the clutch while starting is pretty hard on the thrust bearin, as there's not much oil pressure to lubricate it.
Having to push in the clutch while starting is pretty hard on the thrust bearin, as there's not much oil pressure to lubricate it.
FTE Legend
Joined: Nov 2015
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From: Angier, NC
Don't "fix" the switch unless you can't remember to take the truck out of gear prior to starting. Jumper the wires and never look back.
Having to push in the clutch while starting is pretty hard on the thrust bearin, as there's not much oil pressure to lubricate it.
Having to push in the clutch while starting is pretty hard on the thrust bearin, as there's not much oil pressure to lubricate it.
That is almost 50 years now and I still do it to this day.
How long do you think it would take to wear that thrust bearing?
What about sitting at a stop light or sign with the clutch in?
And if that was the case what about every time you go to start the motor and the bearings not having oil to them also?
Push the clutch in before turning the key and don't look back!
Dave ----
Moderator
Joined: Jan 2001
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From: Virginia
He's right, an engine that has a clutch behind it will have wear in the thrust bearing and the thrust flange on the crankshaft. No way around it, but you can mitigate things a little bit. Starting it out of gear will help, but anyone with the clutch switch working doesn't have that luxury. But while you are stopped at a light, I always pull the tranny into neutral and let out on the clutch. This lessens the thrust time against the bearing, and it also lessens the time the clutch throwout bearing has a lot of pressure on it.
But even with those measures, you will often find the crankshaft that has been in front of a manual transmission is out of spec when you are checking the crankshaft end play.
But even with those measures, you will often find the crankshaft that has been in front of a manual transmission is out of spec when you are checking the crankshaft end play.
5th Wheeling
Joined: Dec 2020
Posts: 31
Likes: 1
When I was leaning to drive I was told ALWAY PUSH THE CLUTCH IN when starting a stick car or truck.
That is almost 50 years now and I still do it to this day.
How long do you think it would take to wear that thrust bearing?
What about sitting at a stop light or sign with the clutch in?
And if that was the case what about every time you go to start the motor and the bearings not having oil to them also?
Push the clutch in before turning the key and don't look back!
Dave ----
That is almost 50 years now and I still do it to this day.
How long do you think it would take to wear that thrust bearing?
What about sitting at a stop light or sign with the clutch in?
And if that was the case what about every time you go to start the motor and the bearings not having oil to them also?
Push the clutch in before turning the key and don't look back!
Dave ----
You do you.
I always, without fail, put the truck in neutral before I start it. If you don't want to modify your CSS, don't, and we'll get along just fine.
Senior User
Joined: Jan 2012
Posts: 422
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I used to daily drive a '74 MGB. On those, it's actually in the factory manuals to NOT push the clutch in when starting due to the type of thrust bearing. They got away without a clutch switch until the car/ brand went away in 1981. IIRC they did wire the safety through the brake light switch instead, eventually but my '74 didn't have that.
My spare vehicle, a 1993 Suzuki Jimny that I imported from Japan has no clutch switch from the factory and Toyota trucks up into the 2000's had a bypass switch
My spare vehicle, a 1993 Suzuki Jimny that I imported from Japan has no clutch switch from the factory and Toyota trucks up into the 2000's had a bypass switch
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