Jump to content

Pinch weld adapters for jack and stands


bfurth

Recommended Posts

I've got my first oil change coming up as soon as I have time (vehicle only has 3,200 miles on it, but it's an August 2014 build, so it's time to remove the factory fill). In an effort to avoid damage to the pinch welds as long as humanly possible, I'm goign to construct some pinch weld adapters using regulation hockey pucks (3"x3"x1"). The plan is to use them for both the jack lifting plate (I'm cutting a 3/4" deep groove down the middle of one puck and calling it a day) and for the jack stands (I've got a set of Craftsman stands with no deep groove).

Plans for the jack stand adapters:

Cut one puck in half, leaving me with two semi-circles of 1" thick hard rubber.

Cut a 1" (more exact measurement to be taken against the pinch weld) deep groove in each half (across the long face that used to be the middle of the puck) to slide on top of the pinch weld.

Remove the bottom 1/4" from each puck to put a flat surface on the jack stand.

Does anyone see any potential safety issues?

Link to comment
Share on other sites

I don't want to damage the paint. It's more for cushioning purposes than anything else.

Here is where my ignorance shows - what are hockey puck made of? Are you going to attack the pucks, or think that friction will hold them in place? I do like the idea of not damaging the paint.

Link to comment
Share on other sites

They are very dense rubber. For the jack, it's just going to sit on top of the existing steel plate. Nothing is needed to hold it in place - the mass of the vehicle pushing down on it will do that. For the stand adapters, effectively there will be 1/2" of rubber on each side of the pinch weld as the whole setup sits in the mouth of the jack stand. I'm not permanently attaching them - just putting them in place when I need to have the vehicle off the ground.

Link to comment
Share on other sites

I actually just purchased a product called In-A-Pinch-Weld, which accomplished the same thing in a specifically-molded rubber product that mimics the pinch-weld receptacle in most vehicle scissor-jacks used for roadside wheel changing. The pinch-weld fits into the slot in the rubber, and adapter holds the pinch-weld straight as opposed to allowing it to collapse one way or the other and cause damage to the body and paint. They offer two versions, one that replaces the jacks metal cup and another that just sits on top of the cup. I bought the version that sits on top of the cup to give extra clearance on my low-ground-clearance vehicle (as it is, my "low-profile" jack crushes the rocker panels under the front doors right where I need to raise the vehicle for tire rotations in one lift). $31 shipped to my door, even with MI sales tax applied to MI residents.

Link to comment
Share on other sites

I actually just purchased a product called In-A-Pinch-Weld, which accomplished the same thing in a specifically-molded rubber product that mimics the pinch-weld receptacle in most vehicle scissor-jacks used for roadside wheel changing. The pinch-weld fits into the slot in the rubber, and adapter holds the pinch-weld straight as opposed to allowing it to collapse one way or the other and cause damage to the body and paint. They offer two versions, one that replaces the jacks metal cup and another that just sits on top of the cup. I bought the version that sits on top of the cup to give extra clearance on my low-ground-clearance vehicle (as it is, my "low-profile" jack crushes the rocker panels under the front doors right where I need to raise the vehicle for tire rotations in one lift). $31 shipped to my door, even with MI sales tax applied to MI residents.

Judging by the images from their website, it won't work for the Journey. The pinch weld for us is nearly 1" in height. That adapter looks like it's only 1/2" deep maybe. It also only serves for lifting, not something that can be used with jack stands. I'll get photos over the weekend of what I'm making - no one has voiced any safety concernes over the use of vulcanized rubber, and there are several products on the market of similar material. I'm just going to make my own for a total cost of materials of $8 (and an as-yet undetermined amount of time with a hack saw).

Link to comment
Share on other sites

Remember that the pinchweld is what you're lifting, not the body. It isn't necessary (and some believe it to be unwise) to have something that comes up to the body and take the weight there. It's also unecessary to make something for the jackstands, since they don't normally go on the pinchweld. Most place them at subframe and framerail points to prevent damage to the body.

Link to comment
Share on other sites

  • 1 year later...

I always used a piece of scrap 2x4 with a 3/4" deep slit, about 3/8" wide, cut down the center. Not really deep enough to contact the body, mainly to keep the pinch weld from folding over. Just toss it right on top of the floor jack

I think using a Ol hockey puck would work great!

Hey bfurth! how did it work out? Have you tried this? Surely you've had your DJ up in the air since you've originally posted this...ans how did the jack stand adapter work as well?

 

Link to comment
Share on other sites

  • 2 weeks later...

The makeshift pinch-weld adapter works pretty well.  It also helps that the library system my wife works for has a subscription to All Data DIY (or something else like it) that has full factory service manuals for just about everything - which includes the correct lift points for everything.

 

The real floor jack lift point on the Journey (for anyone who hasn't figured it out yet) is just behind and inside the front wheels, where the front lower control arm attaches to the front cross member - it's a nice big bolt with a cup around it and a few pieces of molded rubber around it to cushion a floor jack saddle.  Just put a hockey puck on the saddle and you prevent any paint/powder coat damage.

 

The jack stand/pinch weld adapter is then free to go in exactly the right spot on the weld right at the scissor jack point (if you don't put it on the cross member).  Zero paint damage, no bending of the welds.  No additional avenue for rust.  2 years in, still looks new.  To be fair, I've only had it up twice (each August since I purchased it).  I bought mine in February 2015, and I just crossed the 14,000 mile mark this month!

Link to comment
Share on other sites

  • 5 months later...
22 hours ago, SebasH said:

Hi, I'm willing to buy a lightweith floor jack which elevates to a maximum of 350mm.  Can anyone confirm that it is enough height to place the stands under the DJ to do wheels maintenance?

Capture.JPG

I don't know the answer to your question.  Why not just check the return policy of the store, keep the receipt, and return/exchange if the 350mm isn't sufficient?  That's what I would do.  Do you have a torque wrench?  

 

Peace.

Link to comment
Share on other sites

12 hours ago, redtomatoman said:

I don't know the answer to your question.  Why not just check the return policy of the store, keep the receipt, and return/exchange if the 350mm isn't sufficient?  That's what I would do.  Do you have a torque wrench?  

 

Peace.

Thanks.  I do have a torque wrench for the job.  Unfortunately, the return policy here in Argentina does not allow me to return the item once have been used.  However, today I used the standard emergency floor jack and did measure the room space below the body.  At least for my model (SE with 16 inch factory tyres) 350 mm is just enough.  I'm sorry for the low quality of the image.

FullSizeRender.jpg

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...