AMC 360 Timing Cover

360CJ5

Hi all. I recently started my reman AMC 360. After breaking in the cam I realized I never installed the oil slinger on the crankshaft 111!!!

I took the timing cover off last night and everything looked ok except the upper timing gear. Below is a picture of my old AMC 304 and the reman AMC 360.

Old AMC 304:

New (reman) AMC 360 after 20 min run time.

The upper timing gear of the amc 360 looks rusted or burnt....it was nice and new before i started it. I used shell rotella and a bottle of GM EOS in it, primed it, and broke it in at 2,000RPM for 20min. Is something wrong? I also noticed there is a plug behind the upper timing gear. Does that need removed? It wasn't removed on my old 304 so I left it in.

Here's a better shot of the plug I'm talking about:

I also inspected the water pump passages and found some grime:

I also changed the oil:

I'm hoping that the grime in the water pump passage is just crud that I couldn't get out of the radiator. In the cup of the oil that I drained I don't see any water floating on top so can I assume it's ok?[/img][/url]

When I put the timing cover on before I just put gasket sealer on both sides of the gasket and put it on.....didn't leak when I started it. Do you all do the same or do you use RTV on the gasket also?

jeepsr4ever

I wouldnt worry about the look of the timing gear. Your lucky you didnt grenade you cam and chain with those plugs sticking out like that in the front of the block :idea: As long as they clear the gear ..good enough.

360CJ5

The pic is deceiving....there is about 1/4" space between that plug and the cam gear, but what is it? Is it supposed to be there? Are there more than 1 in the block somewhere?

dwloop

Saw your post on JeepForum as well... Yes, they are supposed to be there. They are the oil gallery plugs. There should two in the front, two in the back and two on top, in the valley at the front. HTH Dave

jeepsr4ever

Your most likely ok on the coolant. Most times its casting sand left over and a little bit of corrosion that is brushed off that leaves a grime. ...or it could be mud :shock: At any rate it may be in your best interest to flush the system using the garden hose technique. The oil looks a little greyish, did you use any break in lube when it was last running?

360CJ5

Thanks for the replies everyone.

The oil looks a little greyish, did you use any break in lube when it was last running?

Yes, I had 16oz of GM EOS mixed w/the Rotella diesel oil. I was told that diesel oil doesn't have as much ZDDP as it used to b/c of factors such as environmental regulations.

I had filled the radiator up with water 3 times and let it drain out, but maybe that wasn't enough.

360CJ5

I'm also noticing in the 4th picture there is a little circular wear on the timing cover. I'll check the cam gear bolt head and make sure it's not contacting the cover.