Distributor shaft not turning anymore!

Andysm38 · Member Joined: Apr 24, 2014 Posts: 48 Location: Easton, MD

Thanks Wes!

I will do my best to accomplish all of that.

Any idea where I could purchase the anti-rattle clip?

wesk · Posted: Thu May 08, 2014 10:26 am Post subject:

I haven't bought one in years. Go to your M38 Parts Manual ORD 9 SNL G-740 pahge 146, last item. PN's are: IAT55 (Auto-lite/Prestolit), 7347355 (Ordnance #), 5360-00-361-7935 (National Stock #), 637615 (GM #), GPW12083 (Ford #) then run google searches on those numbers.

There is one outfit that specializes in rebuilding Willys distributors:
http://www.willysdistributors.com/id5.html
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

Andysm38 · Member Joined: Apr 24, 2014 Posts: 48 Location: Easton, MD

Well it "turns out" (no pun intended) that the oil pump is in fact NOT turning...
(yes- I made sure to pressure on the belt and saw the pulley from the camshaft turning)

Andysm38 · Member Joined: Apr 24, 2014 Posts: 48 Location: Easton, MD

sorry -the crankshaft I meant - not the camshaft

Andysm38 · Member Joined: Apr 24, 2014 Posts: 48 Location: Easton, MD

John at Midwest Military has the ani-rattle clip!

I'm going to inspect the timing gear now to see if that might be the source of the problem.

Andysm38 · Member Joined: Apr 24, 2014 Posts: 48 Location: Easton, MD

Well it doesn't look like the timing gear is the reason for the non-turning oil pump:

https://picasaweb.google.com/110605845710348910556/TimingGear?authuser=0&authkey=Gv1sRgCJf0mZ7bn8PM9AE&feat=directlink

Next: I'm taking the oil pan off and take a look there.

Andy

wesk · Posted: Sat May 10, 2014 6:57 pm Post subject:

Why not just pull the oil pump and check the oil pump driven gear and pin? The pan will not give you anymore access.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

Andysm38 · Member Joined: Apr 24, 2014 Posts: 48 Location: Easton, MD

Perfect! Sounds good and will do!

Andysm38 · Member Joined: Apr 24, 2014 Posts: 48 Location: Easton, MD

Here is the troublemaker:

https://picasaweb.google.com/110605845710348910556/OilPump?authuser=0&authkey=Gv1sRgCLz4gay6_O_NxgE&feat=directlink

RICKG · Member Joined: Aug 31, 2010 Posts: 1740 Location: SO IDAHO

Let's hope the cam gear survived!!
_________________
keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a

wesk · Posted: Sun May 11, 2014 4:47 pm Post subject:

Not usually! Andy, when you shop for the pump gear and cam make sure you get the late gear drive cam setup and not the early chain drive cam setup. The chain drive cam turns backwards to yours.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

Andysm38 · Member Joined: Apr 24, 2014 Posts: 48 Location: Easton, MD

Hi Wes,

Just so that I learn from all this, do you mind explaining what most likely happened here? I assume the pump most likely failed first and then damaged the camshaft?

How do you know that I need the late gear?

I realize I need a complete new oil pump and also a whole new camshaft? Anything else?

Thanks for your help and time!

Andy

wesk · Posted: Sun May 11, 2014 6:46 pm Post subject:

The photos of the front of your engine shows a gear driven camshaft not the early chain driven cam shaft.

If the engine laid around a long time it's very possible moisture corroded the pump and the pump seized. The pin in the pump's driven gear should have sheared.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

Andysm38 · Member Joined: Apr 24, 2014 Posts: 48 Location: Easton, MD

Ok. How does this one look to you:

http://www.ebay.com/itm/Willys-M38-NOS-engine-OIL-PUMP-Grab-chance-for-this-great-original-boxed-item-/190851920215?pt=Motors_Car_Truck_Parts_Accessories&hash=item2c6fa93157&vxp=mtr

wesk · Posted: Sun May 11, 2014 7:56 pm Post subject:

NOS generally means it's been around in storage a lot of years. Quality of storage determines quality of part. Think moisture and corrosion here. Any warranty. It is the right # and a cast iron body pump.

New with warranty from a chain parts store will be almost twice that price.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php


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