Someone suggested I post this in this forum instead of where I originally did.
I have a F700 1977 with a 391 engine 5spd with 2 spd axle. What type of main seal does the engine have. The modern 1 piece or the old style rope seal. What does one need to do in order to change it. Aside from the obvious oil pan. Also is there an advantage to going with a non governed distributor. I understand you need to add sometype of a bushing if one opts for this route. I already changed the carb to a Edelbrock. Thanks

 

Regarding the seal, seems like you got most of your answer here:

https://www.ford-trucks.com/forums/1...l#post17186327

It's a two piece, so it's a pull the pan job.

As to the distributor, you know from previous replies that you can't put an FE distributor in there without a bushing.

$45 here. I don't know what you do about the different hex drive size other than change the oil pump to an FE pump. Your pump is probably half or more worn out anyway.

http://www.dscmotorsport.com/Engine/index.htm


You can disable the governor and add a electronic ignition to your current distributor.

Ignitor

Don't rev that thing too much above the governed speed. Ford put the governor on their for a reason.

 

Thanks for the reply and sources.If the pan is off, without a question it gets a new pump. Even though being a fire truck it only has 12,000 miles.

 

Do not believe the miles shown on the odometer, as it reads to 99999.9 then returns to ZERO!

 

Are there any Ford truck odometers that count past 99999.9?

 

Beginning in 1992.

 

If it's a fire truck it is pretty believable. Especially if it's from a rural fire department.

 

Right. Gas-burner farm trucks, too, would never get to 100,000 miles where I live. One trip to town a month if you buy and sell cows a lot. 1 trip to town a year if you don't, ha ha.

 

True. During harvest they are used. So two or three weeks. Or from field to bin.