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While this did not happen to an A4, it will still apply. We are now rebuilding Perkins 4.108 diesel boat engines, 13 last year and 8 so far this year.
Often it is appropriate to attach a remote oil filter as the original attaches in an inconvenient place - hard to get to and leaks in the bilge when changing.
After market remote oil filter kits are readily available with instructions as the oil must flow from the small holes surrounding the larger center hole through the filter element and then back into the engine via the larger center hole.
The oil bypass valve, if so equipped, allows one way flow only or severely lessens pressure.
This fellow who bought one of our rebuilt Perkins, installed the remote filter in the wrong direction, thus reducing oil pressure to around 10PSI. I some aircraft engines, if the flow is reversed it will blow the filter apart.
Always assure you have the oil filter hoses attached appropriately.
Even though we had sold this engine May 2013 and did not receive any notification regarding low oil pressure until July 2014, which is well over our one year warranty, we drove 500+ miles to check it out and discovered the problem. How much damage has been done to the engine? Depends on how many hours he used it with low oil pressure. We have offered to repair the engine, dissassemble, inspect and get it running again if he ships it to us and pays for parts. This means we eat about $1,500 in labor.
This is a problem with some frugal sail boat owners. They may think that since they have been successful in their career, they can work on their boat's engine. I attended marine engine repair school, part time for two years in the early 70's when I could have been sailing or fishing.
Beware! If you don't know what you are doing, hire a trained, qualified technician or, at least join a forum like this one and learn.
Tom Vandiver, BSH Marine
Often it is appropriate to attach a remote oil filter as the original attaches in an inconvenient place - hard to get to and leaks in the bilge when changing.
After market remote oil filter kits are readily available with instructions as the oil must flow from the small holes surrounding the larger center hole through the filter element and then back into the engine via the larger center hole.
The oil bypass valve, if so equipped, allows one way flow only or severely lessens pressure.
This fellow who bought one of our rebuilt Perkins, installed the remote filter in the wrong direction, thus reducing oil pressure to around 10PSI. I some aircraft engines, if the flow is reversed it will blow the filter apart.
Always assure you have the oil filter hoses attached appropriately.
Even though we had sold this engine May 2013 and did not receive any notification regarding low oil pressure until July 2014, which is well over our one year warranty, we drove 500+ miles to check it out and discovered the problem. How much damage has been done to the engine? Depends on how many hours he used it with low oil pressure. We have offered to repair the engine, dissassemble, inspect and get it running again if he ships it to us and pays for parts. This means we eat about $1,500 in labor.
This is a problem with some frugal sail boat owners. They may think that since they have been successful in their career, they can work on their boat's engine. I attended marine engine repair school, part time for two years in the early 70's when I could have been sailing or fishing.
Beware! If you don't know what you are doing, hire a trained, qualified technician or, at least join a forum like this one and learn.
Tom Vandiver, BSH Marine
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