Does anyone know what the timing marks look like for 3038 injection pump gears?

[Caveman3250]

I had to remove my injection pump from 3038 and need to reinstall. There doesn't seem to be any normal markings for lining up gears. Does anyone out there have a pic or idea?
Thanks
Caveman

 

[thepumpguysc]

If its the PFR style pump.. no timing marks on the pump..
there are shims under the pump to set the timing.. just use the ones that came out of it & you'll be fine.

 

[Caveman3250]

I don't know what a PFR style pump is. This pump seems to be normal gear to gear mesh with access cover on front of engine to see and align gears. I am used to having one gear with a dot stamped on a tooth and the opposite gear having 2 dots on 2 teeth and the other gear goes in between the 2 dots. This one has 4 teeth with numbers on them together and then 2 other numbers in different spot on same gear. The drive gear has 2 numbers stamped on teeth. I will try and post pics later

 

[thepumpguysc]

That sure doesn't sound like a PFR style pump.. The PFR sits DOWN IN the block..
& is held in by a few bolts/nuts on the corner of the pump..
You might have a CAV DPA pump.. a triangle mounting flange w/ 3 nuts/bolts?? Throttle & shut/off on the top cover??
Is your drive on the pump held to the gear w/ 3- 1/2" bolts?? & is master splined/dowl pin??
IF SO, that's a CAV DPA pump.. & u took the gear out?? IF NOT, it just bolts up w/ the 3 bolts on the gear & a master dowel.. & a timing line on the pump flange that matches a like on the block..
It might be easier to send the pic to my home mail.. just put at a o l dot com after my screen name in your home mail server..

 

[Caveman3250]

Pump is similar to a db2 used on gm diesels except it ha 2 volts to mount. Also, you can remove the plate that mounts to engine with the pump without removing the pumps drive gear so there is no dowel to line up. I took pics but gotta figure out how to post in this topic...

 

[Caveman3250]

Pics.

 

[thepumpguysc]

How about a pic of the pump & some pump #'s off the tag..
That shaft is probably keyed?? So you must of removed the gear??

 

[Caveman3250]

The gear hasn’t been removed from pump shaft. I’ll send pump numbers as well.

 

[Caveman3250]

Ok, here are pics of injection pump. No numbers visible.

 

[Caveman3250]

Also, I can get it to run now, so timing must be close however it runs smoothly, will rev up slowly but after a minute or so it will slowly die. Sounds like it’s starving for fuel. What do u guys think?