706German

I recently rebuilt a D310 and installed a new oil pump. I’m running 15w40 oil. On startup my oil pressure spikes to about 90psi and after it warms up it drops to 50. If I really work her hard it’ll drop down to 30 at idle. Outside temperature is 80 degrees. is this normal? I’m using a $80 auto meter mechanical gauge. I haven’t checked any other gauges. The oil pressure gauge and light take about 3 seconds after startup to begin reading pressure.

Injpumped, can you please explain the "This one sounds like a filter base issue." comment. I am intrigued because I do have a resting fuel leak around the secondary fuel filter that I haven't resolved yet.

Is there a trick to checking for a leak in the system. I had the same thought that the fuel system may be getting air into it and by holding the primer lever out I am essentially letting the system build pressure and push the air out. Now I just need to figure out how to check for this.

I have a fully rebuilt d310, head , injectors and pump. The first fifty engine starts were perfect, but now when I start it up and release the fuel primer (shut off pull handle) the engine sputters and dies. If I start it up and feather the primer like a choke on a gas engine to keep it running for about 2-3 minutes and then release it, the engine idles and runs fine. The exterior temperature has been 50 and below since I’ve had the issue, but I’m not sure if it’s temperature related. Is this normal, or do I need to adjust something? Any help would be appreciated. I have about 8

Almost done, just need to break the new engine in. Pulled this out of Grandpas barn July 11 of 2017 and gave it a full rebuild. Grandpa bought it new it 1966. German D310. I’m going to convert the ih 560 plow to a 4 bottom.

Started this project back in July of 2017, bought my Grandpa's 706 Farmall that he bought brand new in 1966. I have been enjoying working on it with him and actually got it running on Christmas eve. Just need to finish installing the wiring and sheetmetal and it is almost complete.

I am restoring my grandfathers 1966 706 that he bought new. The restoration is a complete engine out overhaul and I would like to buy a re-manufactured external oil pump for the D310. Anyone know of a source I could get an oil pump at a reasonable price?