Page 2 of 3
Posted: Thu May 08, 2014 9:30 am
by Andysm38
Thanks Wes!
I will do my best to accomplish all of that.
Any idea where I could purchase the anti-rattle clip?
Posted: Thu May 08, 2014 10:26 am
by wesk
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
Posted: Thu May 08, 2014 12:25 pm
by Andysm38
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)
Posted: Thu May 08, 2014 1:04 pm
by Andysm38
sorry -the crankshaft I meant - not the camshaft
Posted: Thu May 08, 2014 5:37 pm
by Andysm38
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.
Posted: Sat May 10, 2014 5:07 pm
by Andysm38
Well it doesn't look like the timing gear is the reason for the non-turning oil pump:
https://picasaweb.google.com/1106058457 ... directlink
Next: I'm taking the oil pan off and take a look there.
Andy
Posted: Sat May 10, 2014 6:57 pm
by wesk
Why not just pull the oil pump and check the oil pump driven gear and pin? The pan will not give you anymore access.
Posted: Sat May 10, 2014 6:59 pm
by Andysm38
Perfect! Sounds good and will do!
Posted: Sun May 11, 2014 11:56 am
by Andysm38
Posted: Sun May 11, 2014 12:06 pm
by RICKG
Let's hope the cam gear survived!!
Posted: Sun May 11, 2014 4:47 pm
by wesk
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.
Posted: Sun May 11, 2014 5:23 pm
by Andysm38
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
Posted: Sun May 11, 2014 6:46 pm
by wesk
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.
Posted: Sun May 11, 2014 7:28 pm
by Andysm38
Posted: Sun May 11, 2014 7:56 pm
by wesk
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.