18-02-2019, 07:53 PM
I am just about to convert a Nippy Crankcase to pressure fed crank.
I will be blanking the oil jets ( Probably with alumiweld )
I am going to use the oil gallery as a feed to the front of the engine as per the pressure fed engine.
I am happy to let the front Camshaft bearing have unfiltered oil. I will just change the oil a bit more often.
I will be making a custom camshaft front bearing with external O rings and a smaller oil feed,
I will be using a reground standard camshaft as well.
I will filter the oil from the front of the gallery before it is fed into the nose and then the crank.
I have been running a Pigsty Conversion for the last 20 years and I am after a more original looking engine bay.
This will make working on my engine easier as the oil filter housing mounts on the head studs and is a Pig to remove to get the head off to deal with valves etc.
My current system just has a blanking plug at the rear of the gallery, the oil comes out of the oil pressure gauge port which is now 1/4 bsp
then into a filter housing and the pressure relief valve manifold and back into the front of the oil gallery, and into the nosepiece the overpressure goes into a tapped 1/4 bsp hole in the front of the crankcase facing backwards away from any moving parts inside the engine.
It all works well but looks horrible with 3 x 3/8 armoured hoses at the front of the engine.
I am with Chris do not use JB weld. Loctite make a few suitable products which can be used on all your oil line fittings
( your engine is worth it )
I will be blanking the oil jets ( Probably with alumiweld )
I am going to use the oil gallery as a feed to the front of the engine as per the pressure fed engine.
I am happy to let the front Camshaft bearing have unfiltered oil. I will just change the oil a bit more often.
I will be making a custom camshaft front bearing with external O rings and a smaller oil feed,
I will be using a reground standard camshaft as well.
I will filter the oil from the front of the gallery before it is fed into the nose and then the crank.
I have been running a Pigsty Conversion for the last 20 years and I am after a more original looking engine bay.
This will make working on my engine easier as the oil filter housing mounts on the head studs and is a Pig to remove to get the head off to deal with valves etc.
My current system just has a blanking plug at the rear of the gallery, the oil comes out of the oil pressure gauge port which is now 1/4 bsp
then into a filter housing and the pressure relief valve manifold and back into the front of the oil gallery, and into the nosepiece the overpressure goes into a tapped 1/4 bsp hole in the front of the crankcase facing backwards away from any moving parts inside the engine.
It all works well but looks horrible with 3 x 3/8 armoured hoses at the front of the engine.
I am with Chris do not use JB weld. Loctite make a few suitable products which can be used on all your oil line fittings
( your engine is worth it )