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06-28-2009, 03:11 PM | #1 |
Registered User
Join Date: Jun 2009
Location: Ellensburg, Washington
Posts: 8
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Clutch linkage problem
I have a 67 GMC K20 that I am trying to piece back together. I have the original tranny and t-case, but a small 400 engine. It originally had a 6 cylinder, I was told this could have been a 305 V6 or a straight six. I found a linkage out of a straight six and it is close to fitting minus the extra spacer piece. I had to drill had tap the engine block by the oil filter, so I could put a ball stud in for the z-bar to pivot on. But ball stud does not line up with the bracket that is riveted to the frame, so i am not sure how to get my linkage to work. Any help would be great. Also any pictures of a V8 with the linkage would be helpful.
For my linkage to work without moving the frame piece I would need to move the ball stud back about 1.5 inches. So i was trying to come up with a bracket that I could bolt on to the engine that would move the ball stud back. Thanks. Also I am new here and cannot figure out how to upload pictures. Any help there would be also be appreciated. |
06-28-2009, 06:52 PM | #2 |
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,992
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Re: Clutch linkage problem
I had a problem like this on a truck many years ago.I used a piece of flat bar and bent a 90* in it.I then drilled it to bolt on with 1 bellhousing bolt ,wrap around the corner and bolt into the holeyou have drilled and tapped.I lined up my z bar,marked it,and removed the bracket.I drilled and tapped the bracket then screwed the ball stud into it.I had just enough room to put a jam nut on back.It all then bolted into the truck and worked like a charm.I don't have pics but still own the truck.It's in Tx and I'm in NC or I would take one.
I hope this explaination helps.
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06-28-2009, 11:25 PM | #3 |
Registered User
Join Date: Jun 2009
Location: Ellensburg, Washington
Posts: 8
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Re: Clutch linkage problem
Thanks for the idea. That sounds fairly simple and effective.
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06-29-2009, 12:06 AM | #4 |
My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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Re: Clutch linkage problem
I had the same problem when I went from a 250 6 cyl to my BBC. Do you have a torch? I wanted it to look right so I cut the rivots off and relocated the bracket farther down the frame. Looks factory and clean. If you don't have a torch...it's a *****.
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06-30-2009, 03:36 PM | #5 |
Registered User
Join Date: Jun 2009
Location: Ellensburg, Washington
Posts: 8
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Re: Clutch linkage problem
I do not have a torch, but when I tried to line up the z-bar with the engine stud the clutch pedal piece that goes through the firewall was binding on the firewall.
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07-01-2009, 11:04 AM | #6 | |
Resident Curmudgeon
Join Date: Dec 1999
Location: NH
Posts: 6,662
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Re: Clutch linkage problem
Quote:
Also, your VIN's second character should be a letter indicating origial engine type: I = straight 6 M = V6 E = V8
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Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all |
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06-30-2009, 04:00 PM | #7 |
Recovering 67-72 Addict
Join Date: Oct 2000
Location: North Bend, WA
Posts: 1,788
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Re: Clutch linkage problem
It sounds like your engine is farther forward then a factory setup. If you don't want to rig something to work then you may need to consider sliding the entire engine, trans, and TC back an 1 1/2".
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07-01-2009, 10:55 AM | #8 |
Registered User
Join Date: Jun 2009
Location: Ellensburg, Washington
Posts: 8
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Re: Clutch linkage problem
My engine cannot go back any more. It is almost touching the firewall right now.
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07-01-2009, 01:05 PM | #9 |
Registered User
Join Date: Jun 2009
Location: Ellensburg, Washington
Posts: 8
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Re: Clutch linkage problem
You are correct as far as I know on the z-bars. I originally had a straight one off of an I6. Then I got a dogleg one. But the dogleg one had the tabs in different spots so the likage was way off. I guess this is the problem and the fun of my first old truck project.
What puzzles me is that my brother has a 72 K10 that has had several different engines from I6 to V8 and he had no clutch problems. He has not used the truck in several years and cannot remember any of the engine swapping. |
07-03-2009, 03:18 PM | #10 |
Registered User
Join Date: Jun 2009
Location: Ellensburg, Washington
Posts: 8
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Re: Clutch linkage problem
Thank you all for your help. I made a piece that seems to work. I will not know for sure until I get the engine running. I noticed that the linkage piece that goes through the firewall is different on a V8 that an
I6. |
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