Installing Windshield B61

[thomastractorsvc]

I now have the new windshield gasket and my new cut glass. I did not put the fenders on yet like I was hoping, so I decided I am going to try to install the windshield.

I asked at the glass shop what it would be for the install and they want more than what I paid for all the cut glass and rear window gasket. So I will give it a try. I have installed flat glass and Chevy windshields so I will take my time and keep my fingers crossed.

What are your all's tips like where to start, where to put sealant etc..

Thanks in advance and I will document the install for posterity.

[Freightrain]

I used 3M putty strips cant recall but come in blue box. Put strips around pinch weld area and then press gasket over. Getting glass in is tricky and cant say what is best/easiest way. Lotsa cussing getting last corner in. If I recall I worked outside first then worked around to center strip. Didnt crack or break it so it was successful!!!

I paid local glass shop the $15? for putting in lock strip. Easier for them with the right tools and experience.

[Mike]

I recall sometime back, (one of Rob's threads) he said the rubber wanted to buck outward and suggested to use several two by fours wedged into the rafters of a garage and overnight when glued dried he got better results.

mike

[Freightrain]

I hung my new rubber in the "installed" manner to get it more into shape(by a couple hangers, so it hung in a rectangle shape). It was all bunched up in a box, so it had no shape.

[Superdog]

make sure the rubber is warm,and use lots and lots of patience,dish soap is good to use for lube.

[Maddog13407]

need some windshield sealant on the pinchweld. Mack never used any originally but with the new shiny paint and clear coat it will leak, trust me!. glue the gasket on and work the center strip in. after that i have used dish soap or even pumice hand cleaner or foamy glass cleane as lube. get yourself a fiberstick( the white ones) from a glass shop. have used a paint stick but the fiberstick is easier. lube it up and slide the glass in fron the side,(twards the center bar) keep pressure on it twards the front and work the gasket around top and bottom with fiberstick, take a break if you have to but it will slide right in. the lockin strip is the bitch part. get yourself the tool to do it and lube that up really well. never put any sealant on glass but make sure you seal gasket to the pinchweld and the gasket to the metal center bar. maybe even alittle more in the center cause it will leak and fill the ashtray full of water, trust me. haha

[Mike]

Thanks for the info Matt....i'm getting ready for this install myself.

mike

[thomastractorsvc]

I was going to reuse the center metal strip (slides into the gasket with three holes) from the old gasket but it is to far gone for reuse so I asked my neighbor who does custom fabrication and sheet metal work to see if he can come up with something. He said it is close to 18 gage sheet metal.

[41chevy]

Matco and Lisle both make the Lock strip install tools cost about 12 or 14 bucks, Saves a ton of time putting in the lock strip after the glass is in.

[thomastractorsvc]

Ok here we go installing a windshield for a Mack B61.

This project costs approximately $425

I had one side of the windshield that was still intact so when I removed everything this past spring I set the glass aside. Went to the local glass shop and had two new pieces cut and a side door glass total $159 with tax.

New gasket from Watts $268 with shipping ( used my BMT discount)

Stopped back by the glass shop after got the gasket to match up locking strip I bought 12 feet for $7 old one looks smaller just dried out.

Old center strip as you can see not much left to it. Had new one made cost $10, Mike put the bend in it same as the old one.

Stopped by Orileys and spent $15 on the tool and $23 on 3m Strips

Getting started-

I applied the butyl strips along the pinch welds, this stuff is really sticky so watch out.

Put the gasket on starting in the top center working your way around both the left and right sides. Don't get carried away take you time, as you need the center bar to be centered and with the 3M strips it is hard to move the gasket once it is pushed on. I think a person would catch heck trying to remove and reset. Also with the stick strips you need to be careful as the gasket has a tendency to stick closed. I used a flat tip screw driver that is bent like a J to assist with keeping it open. After setting the gasket make sure the center strip and the cap/cover strip is in place. I loosely screwed it together to help with moving for when I slide in the glass.

TIP --You can install and remove the center strip that goes in the gasket before the glass is installed and it actually makes it easier to set the perimeter gasket.

I used bubble juice as the lubricant in a spray bottle, it sprays and works well, best of all it is cheap we buy it by the gallon at the dollar store for the kids maybe a $1gallon. It works way better than trying to mix dish soap and water like I have done in the past. I used about half a spray bottle.

Wet the gasket on which ever side you want to start on, my fenders are still off so it was easy access. Carefully climb up and orientate the glass to match the opening push the glass into the center strip. Using a wide dull screwdriver or similar tool start near the center and push the gasket out from the inside. The gasket will catch on the edge of the glass and hold it. I installed both sides of the windshield by myself. I held the glass at the lower corner and pushed into the center and flat to the gasket. Make sure to keep the gasket lube during this process. Once the gasket is around the piece of glass you can apply slight pressure to adjust the glass and push into the opening.

Repeat the same process on the other side.

Once the glass is installed tighten up the center strip screws.

Start at the top center using your tool or screw driver, lube the gasket and start the install of the locking strip. As you move all the way around gasket it will go smoothly if you keep it well lubed and rotating or twisting the tool back and forth while maintaining about a 40 degree angle pushing forward. Once at the end or start point again trim, I used my razor knife and cut at an angle and but it up to the other end.

Move to the center strip now and with a square end start at the top just below were the other ends are and using the same technique work the locking strip down. The gasket has a pocket at the bottom end and once there cut off at an angle and push the end in the the pocket.

That's it other than clean up and wiping the windows.

By now my son was home so he gave it a shot and helped me with the rest of the install. I used the Lisle tool model 47000. I picked that tool because it came with additional tips. A single tip tool can cost the same as this one or more. I have done it both ways with a modified screw driver and the tool and by far the tool is worth the expense.

[caltran]

hey thos tractor : What year chevy windshield, & did u use teh same rubber gasket set? thanks RIck alt ga. 6786130035

[Bigdogtrucker]

  On 9/1/2015 at 4:44 PM, caltran said:

hey thos tractor : What year chevy windshield, & did u use teh same rubber gasket set? thanks RIck alt ga. 6786130035

Sent you a PM caltran

[thomastractorsvc]

  On 9/1/2015 at 5:23 PM, Bigdogtrucker said:

Sent you a PM caltran

Looks like he wants to give you your answer if it doesn't work out let me know

[Bigdogtrucker]

  On 9/1/2015 at 5:50 PM, thomastractorsvc said:

Looks like he wants to give you your answer if it doesn't work out let me know

No, we were talking about some other things. He can use some help, start some new threads caltran and post some pics! Don't be afraid, they all want to see your truck apart or not

[j hancock]

We all like nekkid trucks.....

And most wimmins!

[eddeere]

Read with interest. One question how much 3M Strip-Calk and where applied other than the pinch weld area ?

[Freightrain]

I put strings all around my drivers side, after the fact. Mine started leaking after I put new glass/rubber in. I pulled the lock strip out a couple winters ago, put caulk strips around outside and put lock strip back in. Seems dry. Mine does have some rusty issues and the edge is not smooth/flat anymore. Better to put it all around and not need it then find out it leaks.

[mike trotter]

How much for new rubber for front windshield 1955 B-61 Mack

[j hancock]

  On 1/20/2020 at 9:58 PM, mike trotter said:

How much for new rubber for front windshield 1955 B-61 Mack

Expand  

http://www.wattstruckcenter.com/store/index.php?route=product/product&path=59_68&product_id=189

The gasket lock strip would be needed as well. 

[davehummell]

You used to be able to buy the tool on the order of those at Cleveland brothers from the one safe source book did the same type of rubber in the old cabs on equipment. 

[Freightrain]

I think Lisle made the lock strip i used.   Should be easy to buy anywhere.