Re: [AMC-list] I know why 195.6 ohv

[Frank Swygert <farna@xxxxxxx>]

I don't know, I ran a 196 for 14 year. When I rebuilt it there was well over 100K miles on it. The bearings showed nothing unusual that I remember. No knocks, but oil pressure was down a bit... but still nothing I was worried about. Oil use was up a lot on long drives though. Drove from Macon GA to Dayton OH for a show and back, used almost a case of oil on the trip! I had to add a little over a quart every other tank full on the 14-16 hour drive each way, then a couple quarts driving around while up there. Normally I only drove around town, used a quart every couple weeks back and forth to work and errands. When I took the 4 hour drive to my dad's I'd use a quart up and one back, but that was only once or twice a year. I just didn't notice how MUCH oil it was using until that Ohio trip! Always used detergent oil, changed somewhere between 3K and 4K miles. I put about 7K on it a year, and changed twice a year without paying any heed to miles. Every Spring, every fall, along w
ith minor tune in fall, major in Spring (including head torque check every other year, or if I didn't remember whether I checked the last year or not!). 

Dave is right -- the real old cars (20s-40s... all pre-WWII anyway) had an interval to clean the oil pan due to settling trash in the non-detergent oil. That's when this engine was designed, and why the filter was an option through the 50s. I've seen some 61s with no filter, and maybe 62s, but most after that have the partial flow filter. Didn't seem to be a problem even with detergent oil. There shouldn't be much trash in the oil anyway, unless something breaks! 

Just remember to tap the pump on the SIDE, not the end cover, for the oil line. Looking at the sectional view in the 62 TSM (page 16, same diagram in the 63 TSM page 11 Tom), oil enters the pump via a passage in the bottom then exits the pump via a passage in the top of the main body. To use a full-flow filter the passage into the block main oil galley will have to be plugged. The pump body can then be drilled and tapped into that passage and a line run to the remote filter inlet. The outlet will have to go back to the main oil galley, not the pump. That seems to be the easiest way. You should be able to block the passage in the pump body and tap off the top side of the pump further toward the end then tap back into the pump body on the other side of the plugged passage... if there's room. I don't think there is, but don't have a pump off to look at. I believe there is enough room to tap into the block into that passage. I don't think you'll get a 1/2" line on it -- a 5/16" I
D line should be more than enough -- the partial flow filter is fed with a 1/8" line. The only danger with this setup is that if the oil filter plugs the engine is toast. The pressure relief is in the block, not the pump, and if the filter plugs there is no oil going back to the engine. I think you can get a remote filter base with a built-in bypass to prevent this -- would be worth paying extra if you can find one like that! The full flow pump for 65 models is totally different and won't fit the old block. Main reason (thanks to Tom and Joe!) is that the bypass was moved to the cover and an additional passage is made in the lower side of the pump and block to return oil. The 65 TSM doesn't show the pump in great detail, but does show the bypass built into the cover. Tom will have to look over the full flow pump he has again. 

-------------
Date: Tue, 2 Feb 2010 23:42:09 -0800
From: tom jennings <tomj@xxxxxxx>

OK, my friend w the shop and water cutter will do it! Still not cheap -- $80
- $100 for each cut run (per gasket) plus materials. So it's an expensive
gasket.

das24rules wrote:
> i wonder how much of the wear on your bearings, and the reason i lost mine, was due to the new oil. someone correct me if im wrong. but wasnt the old oil made to drop any contaminants to the bottom of the pan, but this new oil is made to hold it to get filtered out?

Yeah, who knows... I ran detergent oil, probably it wasn't a good idea. It
probabl ywas somewwhat gritty. But my guess is, the generally crappy care
ALL of these cars got when they entered the 'twilight zone' (the 'that old
thing out behind the garage what sat 5 years') is what did them in. Frequent
oil changes and good care would probably have left them in decent condition.


das24rules wrote:
> if you get to your full flow oil filter before i do, pics would be great. and vice versa. ill post pics of mine if i do it before you.


I'm doing mine ASAP, it's not going back in the car partial-flow, and I want
it driving by March.



> > >> i think you and i are going to start leading the way on "improving" (as
> >     
if

> > >> theres much we CAN do) on these 196 motors. HA HA. dave stohler
> >     

No one else seems foolish enough to do it! There's not many available
American production motors out there as ignored or unknown as this one!

--
Frank Swygert
Publisher, "American Motors Cars" 
Magazine (AMC)
For all AMC enthusiasts
http://farna.home.att.net/AMC.html
(free download available!)


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