335 compression release

On the NH250. Just a 3/8” rod bent to clear steer pump reservoir. Just simple bent end with hole for cotter pin. I added the stack of washers to shim out the wear and the return spring. This setup had a spring behind the knob mount on the dash but over time they weaken and the rod will not release on its own. You have to pull, hold, than push back in. With spring you can just let go and it self returns.

 

NH 220 in Diamond T. Heavy cast iron.

 

NH220 in ‘64 white. This engine sits slanted to the right to shoehorn in. That is why the fan pulley sits way down low with very short belts. It is an inch away from the accessory drive.

 

I called a friend down in south Tejas who has had nothing but White- Frieghtliners his whole life. He has one restored from every year from ‘65 to ‘83. He said there were two kinds of setups. Early ones were generally rods and later ones started using cables. The same cables that were used to support the open hoods on the tilt hoods and safety catches on coe’s. FL had both shifter towers that stayed with frame as cab lifted and another type were the shifter unlatched at linkage and stayed with the cab. All depended on spec. He says everyone of the rods he’s seen have been bent, rebent, welded,and rewelded as time went by. Cables are always broken or missing. And most just stopped using them as batteries got better and timing and cr ratios were changed at overhauls. Or complete Re-powers to something that didn’t have one.

Last thing he said on that subject was just gonna have to fab one that works.

 

Go to your media page on your profile on here. You should see upload image button on the left side. Click on it and it should take you to your pics on your phone/computer. Click on what one(s) you want to upload and it should go.

Then to post the pics highlight post image link below the pic and copy it. Then on the reply paste it and it should be good to rock & roll

By the way that's cool as hell your putting that to work

Once you have the images uploaded to here click on it and highlight it, I use the 3rd one down. Then paste it where you put your reply

 

Pretty cool. Nice to see it still has the original fuel tank with the “chimney stack”or “top hat” fill neck. That alone “dates” the truck. The standard simple FL spring ride is a little rough and sqeeky but solid and maintaimance free. That era should be all aluminum except for steel leaves. I’ve got that under the White 4000. I swapped it in to replace the cast iron and steel walking beam that it had oe. It does good and took abuse while it was in service hauling grass. I parted it out from an ‘85 cabover that wasn’t cut any slack through it’s life.

 

what does a compression release do,?
I would assume you need the compression for it to start. Judgeing by the pictures I see its not a crank to pump the compression so, yes I am lost. But very curious.

 

It holds the valves open just enough to release compression.
Some electrical systems struggled to spin over cold engines. Pull the compression release and let the starter run up to max speed and drop the hammer. It it did not fire right off pull the release before it chocks down and repeat.
Some other equipment like big Cats with pony motors had them. That little 2 cylinder gas motor would never spin the diesel over without a compression release.