The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 10-25-2017, 10:23 PM   #1
hounddogs!
Restoring it $200 at a time...
 
hounddogs!'s Avatar
 
Join Date: Aug 2008
Location: NE Kansas
Posts: 840
Door latch adjustment

I spent most of an afternoon getting the pass door adjusted nicely in the opening, with one minor problem. When the door is closed, it's very difficult to lock. With the door open, the mechanism is nice and smooth.

I'm pretty sure that the star wheel is stopping on a 1/2 tooth and interfering with the locking arm. Is there a way to clock the star wheel so that it's fully engaged with the striker? Since I'm happy with the door gaps, I'd rather not move the striker if I can help it.

TIA
Loren
__________________
Charter member of the 'Put the dimmer switch back on the damn floor where it belongs' Society


'68 327-4 speed LWB C20; grandpa bought it for the farm in '71.

DD '01 Grand Cherokee Valdez

Weekender '65 Skylark 300-4V-4 speed

Wife's '07 Lexus ES350; 117 actuator motors and I can't see the engine.
hounddogs! is offline   Reply With Quote
Old 10-26-2017, 12:11 AM   #2
LockDoc
The Original Thread Killer

 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 18,112
Re: Door latch adjustment

Quote:
Originally Posted by hounddogs! View Post
I spent most of an afternoon getting the pass door adjusted nicely in the opening, with one minor problem. When the door is closed, it's very difficult to lock. With the door open, the mechanism is nice and smooth.

I'm pretty sure that the star wheel is stopping on a 1/2 tooth and interfering with the locking arm. Is there a way to clock the star wheel so that it's fully engaged with the striker? Since I'm happy with the door gaps, I'd rather not move the striker if I can help it.

TIA
Loren

Only way to adjust that is to move the striker out. Did you lube all of the moving parts inside the door, and the star wheel? That may help if you haven't. If you roll the window down and use a good strong flashlight you can see the door latch & lock, and spray a little penetrating oil on the mechanism. If you decide to move the striker out be sure and mark around it with a fine felt tip pen and only move it about 1/16". Make sure it doesn't move up or down.

LockDoc
__________________
Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles
LockDoc is offline   Reply With Quote
Old 10-26-2017, 02:04 PM   #3
hounddogs!
Restoring it $200 at a time...
 
hounddogs!'s Avatar
 
Join Date: Aug 2008
Location: NE Kansas
Posts: 840
Re: Door latch adjustment

Thanks Leon. I was afraid that moving the striker was my only option. Will try to find a balance between lock function and door adjustment.

LK
__________________
Charter member of the 'Put the dimmer switch back on the damn floor where it belongs' Society


'68 327-4 speed LWB C20; grandpa bought it for the farm in '71.

DD '01 Grand Cherokee Valdez

Weekender '65 Skylark 300-4V-4 speed

Wife's '07 Lexus ES350; 117 actuator motors and I can't see the engine.
hounddogs! is offline   Reply With Quote
Old 10-26-2017, 03:17 PM   #4
LockDoc
The Original Thread Killer

 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 18,112
Re: Door latch adjustment

Quote:
Originally Posted by hounddogs! View Post
Thanks Leon. I was afraid that moving the striker was my only option. Will try to find a balance between lock function and door adjustment.

LK

No problem, let us know how you come out on it....

LockDoc
__________________
Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles
LockDoc is offline   Reply With Quote
Old 10-26-2017, 03:21 PM   #5
randy500
Senior Member
 
Join Date: Jul 2016
Location: Tacoma, WA
Posts: 3,500
Re: Door latch adjustment

This question comes up frequently, I will explain the problem again...your door latch is worn.
Inside the latch on the same shaft is a latch wheel, it has teeth similar but square edged as the teeth you see on the outside of the latch.
The door has a latch pawl that engages the hidden teeth and a separate lock pawl.
The latch pawl wears along with the latch wheel which puts it out of synch with the lock pawl.
You can remove the latch and grind some clearance into the lock pawl to correct the problem.
I bought a truck with a set of repro door latches installed and they seem to work fine.
randy500 is offline   Reply With Quote
Old 10-26-2017, 03:40 PM   #6
LockDoc
The Original Thread Killer

 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 18,112
Re: Door latch adjustment

Quote:
Originally Posted by randy500 View Post
This question comes up frequently, I will explain the problem again...your door latch is worn.
Inside the latch on the same shaft is a latch wheel, it has teeth similar but square edged as the teeth you see on the outside of the latch.
The door has a latch pawl that engages the hidden teeth and a separate lock pawl.
The latch pawl wears along with the latch wheel which puts it out of synch with the lock pawl.
You can remove the latch and grind some clearance into the lock pawl to correct the problem.
I bought a truck with a set of repro door latches installed and they seem to work fine.

Fortunately that is not always the problem as you seem to suggest. I always try the easiest solution before digging deeper into repairs. Moving a striker plate 1/16 of an inch is not a big deal compared to disassembling a door and removing the latch mechanism. That is why I always suggest it first. I asked him to let us know how that goes and if it doesn't work then is the time to dig deeper....

LockDoc
__________________
Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles
LockDoc is offline   Reply With Quote
Old 10-26-2017, 04:04 PM   #7
randy500
Senior Member
 
Join Date: Jul 2016
Location: Tacoma, WA
Posts: 3,500
Re: Door latch adjustment

Latch wear is always the problem if the door is hard to lock when closed. You can create the same condition with the door open by placing force on the latch gear with your finger while trying to lock the door.
randy500 is offline   Reply With Quote
Old 10-26-2017, 07:19 PM   #8
67swb72klb
Registered User
 
67swb72klb's Avatar
 
Join Date: Dec 2010
Location: livingston co.mi
Posts: 2,015
Re: Door latch adjustment

I have had this problem with the aftermarket latches.
__________________
California 65 GTO---Texas 64 burb 283 ---Oklahoma 67 CST SWB BBW wood bed 327 2004r---New Mexico 72 k10 350 350 auto---Georga 72 short step project
67swb72klb is offline   Reply With Quote
Old 10-26-2017, 08:08 PM   #9
LockDoc
The Original Thread Killer

 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 18,112
Re: Door latch adjustment

Quote:
Originally Posted by randy500 View Post
Latch wear is always the problem if the door is hard to lock when closed. You can create the same condition with the door open by placing force on the latch gear with your finger while trying to lock the door.

I respectfully disagree.....

LockDoc
__________________
Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles
LockDoc is offline   Reply With Quote
Old 10-26-2017, 08:10 PM   #10
LockDoc
The Original Thread Killer

 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 18,112
Re: Door latch adjustment

Quote:
Originally Posted by 67swb72klb View Post
I have had this problem with the aftermarket latches.
And with new door seals, and after adjusting door fit. Many things can cause it....

LockDoc
__________________
Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles
LockDoc is offline   Reply With Quote
Old 10-26-2017, 10:11 PM   #11
hounddogs!
Restoring it $200 at a time...
 
hounddogs!'s Avatar
 
Join Date: Aug 2008
Location: NE Kansas
Posts: 840
Re: Door latch adjustment

Quote:
Originally Posted by randy500 View Post
You can create the same condition with the door open by placing force on the latch gear with your finger while trying to lock the door.
Absolutely right.

For now, I've cocked the striker a few degrees. It'll lock now, but it's still kinda rough. I'll relieve the lock arm a touch when the door's apart for the new window rollers. Thanks guys.
__________________
Charter member of the 'Put the dimmer switch back on the damn floor where it belongs' Society


'68 327-4 speed LWB C20; grandpa bought it for the farm in '71.

DD '01 Grand Cherokee Valdez

Weekender '65 Skylark 300-4V-4 speed

Wife's '07 Lexus ES350; 117 actuator motors and I can't see the engine.
hounddogs! is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:41 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com