By maddog2020 - Fri Jan 10, 2025 11:40 pm
- Fri Jan 10, 2025 11:40 pm
#292784
On Rennlist there have been numerous threads about the oil fittings that screw into the block and the problems they cause when they break loose. Part of the problem is that the wrench boss is too narrow to get a wrench on them to counter hold and when people yank on the oil line to loosen it the fitting breaks loose from the block.
Below on the left is the original fitting that was on my 86 block. You can't get a wrench on it. In the middle is Porsche's current replacement version. Even thinner and you obviously can't get a wrench on it. On the right is my new design.

I had one of the factory fittings hardness tested and chemical tested @ a local lab so that I know what material to make the fittings out of. This alone cost over $700.

In addition to the new fittings I'll be also selling a wider sealing ring to help repair the damaged threads and helping in adding a cleaner installation.
The overall solution is to JB weld the fittings to the block, and if you go that route being able to counter hold them is still a good idea when loosening the oil lines. (I actually had both of mine break loose after JB welding them in. It is very difficult to get the threads perfectly clean with what ever solvent you use.
Depending on where you search, the Porsche fittings sell for $25-$30 each online. I have this initial batch priced @ $60 per set plus shipping. They should be ready for shipment starting on the 20th.
Below on the left is the original fitting that was on my 86 block. You can't get a wrench on it. In the middle is Porsche's current replacement version. Even thinner and you obviously can't get a wrench on it. On the right is my new design.

I had one of the factory fittings hardness tested and chemical tested @ a local lab so that I know what material to make the fittings out of. This alone cost over $700.

In addition to the new fittings I'll be also selling a wider sealing ring to help repair the damaged threads and helping in adding a cleaner installation.
The overall solution is to JB weld the fittings to the block, and if you go that route being able to counter hold them is still a good idea when loosening the oil lines. (I actually had both of mine break loose after JB welding them in. It is very difficult to get the threads perfectly clean with what ever solvent you use.
Depending on where you search, the Porsche fittings sell for $25-$30 each online. I have this initial batch priced @ $60 per set plus shipping. They should be ready for shipment starting on the 20th.
Last edited by maddog2020 on Sat Jan 18, 2025 2:35 pm, edited 2 times in total.






