Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
10-14-2024, 12:00 PM | #1 |
New Member
Join Date: May 2024
Location: Appleton, WI
Posts: 16
|
Clutch Z-bar alignment
When I bought the truck the previous owner claimed his son replaced the clutch and forgot to put the "ball" back on the linkage. I had to bury the pedal in the floor to stop or shift. Tough drive home... As part of the bigger project I ordered new ball studs from LMC and finally got around to installing them this weekend.
Now the Z-rod was at a very steep angle before and was rubbing through the frame.. or someone had clearanced it for the steep angle. After pulling it out I found that both sides had the ball studs, but someone had re-welded the frame side arm and melted the nylon bushings inside the tube. After scraping that all out and installing the new parts I found that the Z-bar will not fit. I even chiseled out the rivets on the frame bracket to see if that would help me get it aligned. In order to get both ball studs seated properly and close to level I would need to raise the engine side ball stud up 1.5"(+/-). Does anyone have any advice on what is going on here? Pictures do not have the engine ball stud installed. The previous stud was in the hole below the oil dipstick tube (removed because it broke). Engine mounts are intact and do not appear damaged. 67 'K20, 327, SM420, Z-bar is 7-1/4" long. |
10-14-2024, 12:39 PM | #2 |
Senior Member
Join Date: Mar 2015
Location: washington
Posts: 2,296
|
Re: Clutch Z-bar alignment
Appears to me that the motor may be too low.
Wondering if the frame brackets are correct. Could they be BBC or six cylinder brackets? However, the factory bar is straight, like the one shown. I understand the frame bracket can not be lowered before it contacts the frame. Not all SBC had the stud location the same. But unlikely this is the issue. Can you get pictures of the frame brackets? Unrelated is the spark plugs are missing the exhaust heat shields. Last edited by Accelo; 10-14-2024 at 01:54 PM. |
10-14-2024, 12:54 PM | #3 |
Senior Member
Join Date: Apr 2022
Location: Hillsboro, Oregon
Posts: 495
|
Re: Clutch Z-bar alignment
Looks like your frame bracket is backwards as well. My bracket is still riveted to the frame. Will note that my whole setup is I6 stuff as my truck was originally a 292 truck and the V8 was just swapped with all the mounts in the I6 rearward location, but bracket would be similar in setup on the forward V8 spot.
__________________
The Twins: 1968 C10 SWB - Blue 327/5 Speed 1968 Camaro SS/RS - Blue 327/4speed C10 Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=833278 The "Others" 1933 Ford Pickup (Camaro in disguise) 2017 Camaro SS Life long Chevy guy |
10-14-2024, 12:56 PM | #4 |
Senior Member
Join Date: Apr 2022
Location: Hillsboro, Oregon
Posts: 495
|
Re: Clutch Z-bar alignment
Also now looking more at your setup, your in the I6 location as well, the rod coming from the pedal to the Z bar and the Z bar itself is different over the V8 stuff, that would also be causing your issue.
__________________
The Twins: 1968 C10 SWB - Blue 327/5 Speed 1968 Camaro SS/RS - Blue 327/4speed C10 Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=833278 The "Others" 1933 Ford Pickup (Camaro in disguise) 2017 Camaro SS Life long Chevy guy |
10-14-2024, 02:19 PM | #5 |
Senior Member
Join Date: Mar 2015
Location: washington
Posts: 2,296
|
Re: Clutch Z-bar alignment
I found this while looking around the internet.
I see your truck is a 4-wheel drive and this is 2-wheel drive. I now find myself wondering why they are different. |
10-14-2024, 06:31 PM | #6 | |
Senior Member
Join Date: Jan 2005
Location: CA
Posts: 5,988
|
Re: Clutch Z-bar alignment
Quote:
In '67, 2WD V8 trucks used a straight upper clutch rod and a frame bracket with a bumped in section to it facing inward. All other years and '67 4WD V8 trucks used the square bracket flipped outward to accommodate the "dog leg" upper clutch rod and wider z-bar. Detour's frame bracket, z-bar and upper clutch rod all look correct to me. https://67-72chevytrucks.com/vboard/...d.php?t=847345 I agree with Accelo's statement that the engine is sitting too low, or the transmission is hanging extremely low, or maybe it's a combination of the two. Last edited by pjmoreland; 10-15-2024 at 10:24 AM. |
|
10-14-2024, 09:13 PM | #7 |
New Member
Join Date: May 2024
Location: Appleton, WI
Posts: 16
|
Re: Clutch Z-bar alignment
I know the motor isn't original, it's a mix of older full size car parts but it seems to be healthy. Also don't know for sure what the original engine was, but was told it was a 327.
I know the frame side bracket is on correct because I drilled and chiseled the factory rivets off. How would the engine be sitting to low? This is how I felt while looking at it, but the mounts don't look collapsed vs pictures of new ones I see online. The upper clutch rod is worn almost halfway through, but haven't found a replacement online. May have to weld the gap up and grind to size. |
10-15-2024, 09:59 AM | #8 |
Senior Member
Join Date: Dec 1999
Location: TX
Posts: 1,624
|
Re: Clutch Z-bar alignment
Look through the pictures in this build thread:
https://67-72chevytrucks.com/vboard/...=841272&page=4 Scroll down to post 89 and you can see the bracket on your frame is the same as on Clay's truck. He has pictures of his Z-bar and other parts, but I couldn't find if he had any pics of the whole thing assembled. |
10-15-2024, 10:17 AM | #9 |
Senior Member
Join Date: Dec 1999
Location: TX
Posts: 1,624
|
Re: Clutch Z-bar alignment
I wonder if your truck was originally a 6 cyl? Does VIN start with KS or KE? Might have 6 cyl engine crossmember somehow?
|
10-15-2024, 10:20 AM | #10 |
Senior Member
Join Date: Jan 2005
Location: CA
Posts: 5,988
|
Re: Clutch Z-bar alignment
|
10-15-2024, 12:49 PM | #11 |
Senior Member
Join Date: Dec 1999
Location: TX
Posts: 1,624
|
Re: Clutch Z-bar alignment
That's right, just looked at my 6cyl truck. Oops...
Last edited by Jason Banks; 10-15-2024 at 01:12 PM. |
10-15-2024, 01:08 PM | #12 | |
Senior Member
Join Date: Jan 2005
Location: CA
Posts: 5,988
|
Re: Clutch Z-bar alignment
Quote:
http://67-72chevytrucks.com/vboard/s...d.php?t=634117 |
|
10-18-2024, 10:29 PM | #13 | ||
New Member
Join Date: May 2024
Location: Appleton, WI
Posts: 16
|
Re: Clutch Z-bar alignment
Quote:
Pictures below Quote:
Yes It looks the same if not very close. |
||
Bookmarks |
|
|