Old oil trick

[Soundguy]

question is what color is the smoke.. blue or black?

blue is oil.. black is rich carb.

next. what constitutes a rebuild. can be anything from full rebuild.. new crank, cam, cam inserts.. new valvs, seats, etc.. or alot less. to some a rbuild is a new set of main and rod bearings, new rings, ream the ridge, maybee hand lap the valves and go.

unless you did the full enchalada.. you might have leaky intake seals.. or loose tolerance inthe cyl bores.

what's yer compression like.. dry vs wet?

yes.. a heavier oil can limit consumption.. but also makes for slower to rise oil pressure in cold weather, plus 'less' energy savings. still.. IMHO.. 10w30 is too light an oil for even a rebuilt tight N. i'd go 15w40 minimum..

soundguy

I know an old farmer who used older tractors on his farm, such as 8 and 9Ns, Jubilees and some older JDs. I have two tractors I use, a 8N and JD5103. Dad and I rebuilt the engine in the 8N about 9 years ago and have probably put around 500-600 hrs on it. It still runs strong, but I notice it smokes some, especially under a load. The above mentioned fellow said when his 8N and 9N started to smoke some, he went with a heavier weight oil, maybe a 40wt. I run 10w-30 in my 8N and wondered if he was on to something. Anyone ever try this to see if they can get by longer before a rebuild? It seems to me the heavier weight oil will rob the engine of some power, not help it. Thoughts?

 

[bp fick]

Yeah, we used to use Motor Honey, STP and gear lube to stop the smokers, back in the day. Tractors, cars and trucks. Law of diminishing returns finally catches up though.

At some point, we got them so thick that when the weather took a dive to below 20 degrees, you couldn't start 'em. Parked them on a hill, let them roll and popped the clutch.

 

[timswi]

20W 50 is the go , the oil should be thin enough for winter and when it gets hot the Polymer chains will straighten out and make it thicker when it gets hot .

My thoughts exactly

 

[mmurphy]

question is what color is the smoke.. blue or black?

blue is oil.. black is rich carb.

next. what constitutes a rebuild. can be anything from full rebuild.. new crank, cam, cam inserts.. new valvs, seats, etc.. or alot less. to some a rbuild is a new set of main and rod bearings, new rings, ream the ridge, maybee hand lap the valves and go.

unless you did the full enchalada.. you might have leaky intake seals.. or loose tolerance inthe cyl bores.

what's yer compression like.. dry vs wet?

yes.. a heavier oil can limit consumption.. but also makes for slower to rise oil pressure in cold weather, plus 'less' energy savings. still.. IMHO.. 10w30 is too light an oil for even a rebuilt tight N. i'd go 15w40 minimum..

soundguy

:thumbsup::thumbsup:

 

[Rickstir]

When I bought my Jubilee 15 years ago, the guy told me to run nothing but 30W in it. Always have.

 

[deerefan]

question is what color is the smoke.. blue or black?

blue is oil.. black is rich carb.

next. what constitutes a rebuild. can be anything from full rebuild.. new crank, cam, cam inserts.. new valvs, seats, etc.. or alot less. to some a rbuild is a new set of main and rod bearings, new rings, ream the ridge, maybee hand lap the valves and go.

unless you did the full enchalada.. you might have leaky intake seals.. or loose tolerance inthe cyl bores.

what's yer compression like.. dry vs wet?

yes.. a heavier oil can limit consumption.. but also makes for slower to rise oil pressure in cold weather, plus 'less' energy savings. still.. IMHO.. 10w30 is too light an oil for even a rebuilt tight N. i'd go 15w40 minimum..

soundguy

Its bluish. We sent the head off to a local tractor guy who specializes in N series and older ford tractors engines, machining, pump rebuilds etc.. Dad replaced the bearings, sleeves and rings. I have not done a compression test b/c the tractor still has good power, just smokes some esp. under a load and when first cranked. I would say the rebuild has over 500 hrs on it.

 

[Soundguy]

the comp test will tell you a few things.

soundguy

 

[DEWFPO]

I realize this is an old tractor with old school tolerances, but if an engine is used infrequently and for very short periods of time the oil rings can get gummed up in the ring lands. I realize you may not want to use a synthetic oil, but you might want to consider trying something like Auto-RX to clean out the ring lands. It's added to the oil and it cleans out the engine. (caution : you might also find seal leaks this way as well). The reason I say this is because I was able to halve my oil consumption simply by switching to a synthetic oil. The oil apparently cleaned up the oil rings and consumption dropped dramatically.

DEWFPO

 

[Soundguy]

I'd add a can of mmo to the oil and gas before I switched to synthetic in an N..

soundguy

 

[20 20]

question is what color is the smoke.. blue or black?

soundguy

You forgot white = coolant