Author Topic: 86 K20 292-Knocking noise, but stops when press clutch?!?!  (Read 16694 times)

Offline thefarmboy21

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Re: 86 K20 292-Knocking noise, but stops when press clutch?!?!
« Reply #15 on: July 03, 2012, 12:59:04 pm »
Cause I want to change my fan and need to change radiator hoses anyway. Plus you're doing it all up top instead of underneath. But I guess I didn't think of exhaust etc... I'm used to derby cars. 350 with 350 tranny headers motor tranny and all one yank lol.
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86 Chevy K20 Custom Deluxe-Grandpa bought it new 11/20/85
77 Chevy K10 Custom Deluxe-Dad's first truck
69 Chevy C30 flatbed-Grandpa's farm truck
1950 International L-112-Grandpa bought it new, parked in 1963

Offline starkey

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Re: 86 K20 292-Knocking noise, but stops when press clutch?!?!
« Reply #16 on: July 03, 2012, 02:37:35 pm »
Cause I want to change my fan and need to change radiator hoses anyway. Plus you're doing it all up top instead of underneath. But I guess I didn't think of exhaust etc... I'm used to derby cars. 350 with 350 tranny headers motor tranny and all one yank lol.

I'm not saying it cannot be done.. sure, you can pull the engine to replace the clutch, but you'll probably end up pulling the transmission anyway. Once you try and put it all back together and have havoc trying to stab the input shaft through the clutch splines and into the pilot bearing with the rear of the transmission attached to the crossmember, you'll see what we're all talking about  ;)
1974 Chevy C20 Camper Special
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Offline thefarmboy21

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Re: 86 K20 292-Knocking noise, but stops when press clutch?!?!
« Reply #17 on: July 03, 2012, 11:40:34 pm »
So if I drop the tranny what all do I have to do? Take off shifter, drop driveshafts, crossmember, belhousing bolts and unhook hydraulic line? What am I missing?
AMSOIL DEALER # 5583011
86 Chevy K20 Custom Deluxe-Grandpa bought it new 11/20/85
77 Chevy K10 Custom Deluxe-Dad's first truck
69 Chevy C30 flatbed-Grandpa's farm truck
1950 International L-112-Grandpa bought it new, parked in 1963

Offline Fairlane514

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Re: 86 K20 292-Knocking noise, but stops when press clutch?!?!
« Reply #18 on: July 04, 2012, 09:30:00 am »
You will need to support the rear of the engine so it doesn't put a lot of stress on the motor mounts after removing the transmission. It may be easier to remove the transmission from the bell  ousting first and then remove the bell housing.  If you are doing this on the ground, I think its easier this way.

 They also make a plastic plug you can push into the output shaft seal to retain the oil inside the transmission. If you tilt the trans it can come pouring out everywhere and make a big mess.

I have also seen people tape a thick rubber glove over the output shaft to do the same thing.

Offline thefarmboy21

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Re: 86 K20 292-Knocking noise, but stops when press clutch?!?!
« Reply #19 on: July 04, 2012, 11:17:47 am »
Yea I knew about the motor support. I've dropped several trannies, just never dropped a 4x4 tranny and never a 4-speed lol. Does the shifter unbolt and come out the top?
AMSOIL DEALER # 5583011
86 Chevy K20 Custom Deluxe-Grandpa bought it new 11/20/85
77 Chevy K10 Custom Deluxe-Dad's first truck
69 Chevy C30 flatbed-Grandpa's farm truck
1950 International L-112-Grandpa bought it new, parked in 1963

Offline thirsty

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Re: 86 K20 292-Knocking noise, but stops when press clutch?!?!
« Reply #20 on: July 04, 2012, 01:46:58 pm »
Does the shifter unbolt and come out the top?
You have push down and turn the lock. Put the transmission in neutral first.

This is what it looks like in there.
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Offline Blazin

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Re: 86 K20 292-Knocking noise, but stops when press clutch?!?!
« Reply #21 on: July 04, 2012, 10:51:27 pm »
WHen I was younger and had to work in the outdoor garage I always pulled the motor to a clutch job in my trucks.
I had an engine hoist, and didn't have concrete or a transmission jack!
Some people are like Slinkies. Not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs