I have a 1984 Mercedes 300d and all 5 of the vacuum pods in the dash need there diaphragms replaced because all but one has developed a tear. I figured the 5th one is on its way out even if it still functions. I made this tool to take the pods apart. They come apart easily and the diaphragms can be replaced easily. Just for ****s and giggles I was thinking of ways to repair the cracked portion of rubber if we're in some 3rd world nation and had no other choice. I know super glue isn't flexible but it does bond to rubber really well. I used some to fill in the crack and the pod works great now although it's probably not the best long term fix. What types of glue would you use or what ideas do you have? The pics below are of the tool I made, the pod taken apart, and the fixed diaphragm.
What to use to repair torn vacuum pod diaphragm?
- Thread starter joegreen
- Start date
I would call this company and ask about some new ones or some thin rubberized material with adhesive to repair the old one.
Not the ideal solution, rubberized cement impregnated on a very thin cloth should also work. Nothing as good as a new one but for a half arsed repair possibly.
www.j-flex.com
Not the ideal solution, rubberized cement impregnated on a very thin cloth should also work. Nothing as good as a new one but for a half arsed repair possibly.
Diaphragm & Thin Gauge Sheets
Rubber diaphragm sheets & thin gauge sheets available in a wide range ex-stock from J-Flex. Full range of specification sheets available to download.
www.j-flex.com
Can the hole/ crack be repair in the same way an inner tube is patch, not sure do!
JHZR2
Staff member
I was thinking rubber cement or tire patch cement. Is the last picture the rubber bellows? Knock on wood Ive never taken any of mine apart...
Yes
McNett Seam Grip or Aquaseal (same as Seam Grip except more solids, less solvent) is a flexible and stretchable moisture-curing polyurethane adhesive that adheres to rubber. As far as I can tell it's an MDI PTMEG prepolymer thinned with toluene. And they are the only company that makes a product like this for consumer use.
This product can be used to repair tears in rubber by applying the adhesive to the tear and butting the ends of the tear together and holding it in place until it cures. Applying adhesive tape to one side of the tear to hold the rubber in place before applying the adhesive will probably work fine.
This product can be used to repair tears in rubber by applying the adhesive to the tear and butting the ends of the tear together and holding it in place until it cures. Applying adhesive tape to one side of the tear to hold the rubber in place before applying the adhesive will probably work fine.
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Thanks those are some good looking products
