take the oil cooler and adaptor off, remove the studs and sand it on a glass with 400 grit like an intake surface, also remove the little stud from where it sits on the block and sand that pad down too with a block... check the edges deburr anything that looks like it can get hung up or make a gap; i put aviation permatex on the seals before installing them and use nylocs with flat washers to hold the adaptor/cooler down too;
Hello there. We are on the same page. I'm going to remove the engine hopefully during next week and do exactly that and then run it on the table to see if leak has been fixed. Thanks for your comment. Jamie
If you have a leak from the oil cooler seals the problem is probably not with the size of your oil pump. It's because of the way the cooler was installed and not seated properly, or one or both of your oil pressure relief valves are gunked up or stuck and not functioning correctly. On older cases there is only one pressure relief valve and we would use later model valves and springs to increase oil pressure at idle. You've got to make sure that the galleries where the relief valve plungers live are spotlessly clean or you'll have issues with them sticking. The other thing is what viscosity oil are you using? Back when the VWs were still being sold the recommendation was straight 30 weight oil for most climates, 20 or 10 weight for extreme cold or harsh winters, and 40 or 50 weight for extreme heat in summer. Now I believe that depending on climate that modern 10w-40 or 20w-50 is recommended. When I was younger I lived in South Florida where maintaining adequate oil pressure in the hot climate was always a problem with air cooled VWs regardless of engine displacement. I rebuilt dozens of VW engines and the first thing we would do was install a higher volume oil pump and later style relief valve plungers and springs, and convert to a dog house oil cooler like you did. This made them run cooler with better oil pressure when hot. If the pressure relief valves are doing their job correctly the larger oil pump will flow more volume of oil per minute, but the pressure won't be any higher at speed than with a smaller pump. The improvement is at idle and slow speeds. That's because the relief valves will send the access pressure back to the sump. If the spring(s) are too stiff that could also make the pressure too high. Make sure you have the correct plunger and spring in the correct place. They are different and mixing them up can be a problem too. When installing the oil cooler you have to make sure that the mounting surfaces of the case and the cooler are perfectly clean and smooth. Use a mild solvent for cleaning and a fine grit sand paper to smooth up the surfaces. Then use the Permatex Aviation Sealant that's designed for air cooled engines. Finally, check your oil pressure with a gauge, like you did, but hot, like after a long drive in traffic. As I said, if it's too high it's most likely that one or both of the two oil pressure relief valves are stuck or sticking. Too low then the springs are incorrect.
Cant thank you enough for your comment and great to here your experiences. I have checked the relief valves and seem to move smoothly and free and next week I will remove the engine and have a better inspection and then run the engine on the table to locate the leak. Will also be changing to 10w oil as apposed to the 20w i'm currently using. I plan the check the block surface and the oil cooler mount to insure they are perfectly flat. Thanks again. Jamie
Hello sir. Yes it is and seems to have gotten worse. I will be removing the engine again at the weekend for another inspection and this time run it out of the car.
NPT, Also known as American National Pipe Tapered Thread. 👍
Thanks dude!! 💪💪
There's an article in VW Trends mag summer 2024 that explains how to set up the oil pump.
Enjoy the day
Peace ✌
Thanks so much. I'll have to check it out. Jamie
take the oil cooler and adaptor off, remove the studs and sand it on a glass with 400 grit like an intake surface, also remove the little stud from where it sits on the block and sand that pad down too with a block... check the edges deburr anything that looks like it can get hung up or make a gap; i put aviation permatex on the seals before installing them and use nylocs with flat washers to hold the adaptor/cooler down too;
Hello there. We are on the same page. I'm going to remove the engine hopefully during next week and do exactly that and then run it on the table to see if leak has been fixed. Thanks for your comment. Jamie
There’s some great replies there Jamie, hope you get it sorted soon, watching with interest 👍🏼
Hello there. Yes you're not wrong. Super grateful for the comments. Engine is out once more so another update is coming 😁
If you have a leak from the oil cooler seals the problem is probably not with the size of your oil pump. It's because of the way the cooler was installed and not seated properly, or one or both of your oil pressure relief valves are gunked up or stuck and not functioning correctly. On older cases there is only one pressure relief valve and we would use later model valves and springs to increase oil pressure at idle. You've got to make sure that the galleries where the relief valve plungers live are spotlessly clean or you'll have issues with them sticking. The other thing is what viscosity oil are you using? Back when the VWs were still being sold the recommendation was straight 30 weight oil for most climates, 20 or 10 weight for extreme cold or harsh winters, and 40 or 50 weight for extreme heat in summer. Now I believe that depending on climate that modern 10w-40 or 20w-50 is recommended.
When I was younger I lived in South Florida where maintaining adequate oil pressure in the hot climate was always a problem with air cooled VWs regardless of engine displacement. I rebuilt dozens of VW engines and the first thing we would do was install a higher volume oil pump and later style relief valve plungers and springs, and convert to a dog house oil cooler like you did. This made them run cooler with better oil pressure when hot. If the pressure relief valves are doing their job correctly the larger oil pump will flow more volume of oil per minute, but the pressure won't be any higher at speed than with a smaller pump. The improvement is at idle and slow speeds. That's because the relief valves will send the access pressure back to the sump. If the spring(s) are too stiff that could also make the pressure too high. Make sure you have the correct plunger and spring in the correct place. They are different and mixing them up can be a problem too.
When installing the oil cooler you have to make sure that the mounting surfaces of the case and the cooler are perfectly clean and smooth. Use a mild solvent for cleaning and a fine grit sand paper to smooth up the surfaces. Then use the Permatex Aviation Sealant that's designed for air cooled engines. Finally, check your oil pressure with a gauge, like you did, but hot, like after a long drive in traffic. As I said, if it's too high it's most likely that one or both of the two oil pressure relief valves are stuck or sticking. Too low then the springs are incorrect.
Cant thank you enough for your comment and great to here your experiences. I have checked the relief valves and seem to move smoothly and free and next week I will remove the engine and have a better inspection and then run the engine on the table to locate the leak. Will also be changing to 10w oil as apposed to the 20w i'm currently using. I plan the check the block surface and the oil cooler mount to insure they are perfectly flat. Thanks again. Jamie
Is it still leaking oil from the oil cooler?
Hello sir. Yes it is and seems to have gotten worse. I will be removing the engine again at the weekend for another inspection and this time run it out of the car.
Try running it without oil, should solve the issue 😊 you’re welcome 😂
@jamiedowson6482
If its still leaking, from the oil cooler area. The case might be cracked.
There's a article in vw trends mag summer 2024 that explains how to set up the oil pump.
Good Luck
@@richardbarton4282 hahahahaha why has no one else made that suggestion????!!!!