Recently a customer asked for help with a problem they were having with finding Gaskets they needed for older model carburetor re-builds.
The customer re-builds carburetors for the older type Porsche motor cars. They were finding that the old car Gaskets were no longer available from the OEM or were extremely expensive. In some cases they were being forced to buy a kit of parts when they just needed one type of Gasket.
Their first Gasket requirement was for the Porsche 356. They had a sample Gasket which we used as a model to reverse engineer the new Gasket. The main challenge was that no engineering drawing existed so specific details that we normally need to make a Gasket were not available. To overcome this, we electronically scanned the existing Gasket to produce a new drawing. We were then able to produce a custom die which we used to manufacture the new Gasket.
We found a suitable equivalent material on the McMaster Car web site. We decided on a lightweight vegetable fiber material, 1/64” thickness. This material was resistant to water, oil and inert gasses with a max pressure of 250 psi, -20 to +250 degrees F temperature range, per MIL-G-12803 spec and RoHS compliant.
The customer received the new Gasket within 2 weeks of initially asking us if we could help. See photo of the existing Gasket (red) and the new Gasket (brown).
Cost issue resolved by MOQ
The cost of making qty 1 Gasket is prohibitive but it is not so far out of bounds with a low MOQ quantity. The price all depends on the size and complexity of the Gasket but as a rough guide the die would be $125 which includes scanning and making a new drawing, with the price of making each Gasket at $0.50 each at a MOQ of qty 50. The only other cost would be the raw material.
Other EOL applications
There are lots of End of Life products where the OEM no longer provides supply chain support. If you have a carburetor re-build or any other project that needs a Gasket you can no longer source, please contact us: firstname.lastname@example.org
Other possible applications include all older car models, motor cycles, aerospace, marine vehicles etc.
About the Author
With over 25 years of experience in the manufacturing industry, Martin Chell brings a wealth of knowledge to his client projects. He has worked with large companies including Qualcomm and completed projects in a variety of aerospace, biotech and other applications.
“The die cut samples look great.” ~ Aquapail
“Thanks so much for the great service.” ~ Robert, Hat Fitness
“The gaskets worked out just fine. Thanks for your help.” ~ Chong, Redpoint Engineering