2016年10月14日 · My dad has an 1950 model Ford 8n b tractor and it is very stubborn. The tractor gets oil pressure, so it seems, when it wants to. The oil pump was replaced and everything is okay as far as the amount of oil in the engine. Yet I can't get the oil pressure to come up. Does anyone have any hints on...

2021年10月25日 · You are going to have to drop the oil pan and scrutinize inside to determine why the oil pressure goes to zero. You are dealing with a 70 year old tractor. With an 8N, you will have to slide the front axle forward to get to the oil pan bolts up front. I've got a Ford 3600 and it requires sliding the front axle forward. Complicates a simple job.

2015年8月12日 · For the older model 8N's, there's a 15/16ths nut on the front timing gear cover, just under the water pump. Remove the nut, and pull the pressure relief valve and spring. Take care not to lose the spring. Use a pump-type oil can with a long flexible snout. Shoot 10 or more squirts of oil in the hole.

2016年7月19日 · My guess is that your oil pump needed rebuilding. One of the short comings on the 9N/2N/8N is the oil pump. Remember that this a 1930's design. The rebuild is not simple as replacing parts. Although that might help. Last I heard, Windy Ridge Farms (Machine Shop) in Virginia was rebuilding them. But that info is several years old.

2015年10月22日 · Oil pressure of 30-40 psi is good. At idle, it may go as low as 20 psi. The oil gauge (and filter) is at the very end of the oil circuit from the oil pump thru the crank, etc. The oil pressure has been dropped many times before getting to the gauge. There is an excellent oil flow diagram and explanation on the internet, posted by JMOR (YT forum).

2013年2月1日 · Ford 9N/2N/8N 8n oil pressure. Jump to Latest ... 8n oil pressure ... Hopefully priming the pump will work ...

2013年7月3日 · I have a Ford 8N and been doing a lot of reading on it and am stuck on getting it apart. My 3pt hitch is dropping as soon as I push my clutch in which from reading means I have some kind of leak somewhere or my relief valve is having problems. I drained the oil and found there is a big scum in the bottom and want to clean it out.

2004年10月28日 · This is a post from a well respected Ford mechanic. You should first take off the right hand inspection plate under the seat on the side of the lift housing.With an implement on the lift start the engine and with the lift in the up position look inside and see if their is oil leaking from the end of the lift ram cylinder.If their is only a slight drip …

2021年12月23日 · This is where your oil gallery is for the valves/lifters. Don't lose the little spring under the nut. Use an oil squirt can to put about a cup of 90w oil in here. Replace the spring & nut. Spin the engine over w/ the starter (key off) to check for oil pressure before you start the engine."

2017年2月11日 · Long story short, the folks decided to buy this 8N that was advertised as being "restored", it looked OK and had new tires but the first time they actually tried to use it after bringing it home the oil pressure dropped off to near zero once it warmed up, and a steady plume of light blue smoke trailed from the exhaust pipe.