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#298433 - 12/27/05 09:57 AM Old Gas powered Tractor..Need Lead Substitute?
Strjock81 Offline


Registered: 11/29/04
Posts: 347
Loc: Illinois
I am the (proud?) owner of a 1963 Case 830 tractor with a 4 cylinder gas engine. We have always used 87 octane farm gas in it, and I never really thought about it maybe needing lead substitute since unleaded gas became the standard years ago.

It crossed my mine a few days ago, but all the googling I have done has yielded zero results. Do any of you guys have any ideas if I ought to add a lead substitute from now on?

The tractor runs pretty decent but needs carb adjustments and new plugs every couple hundred hours and hates ethanol even in 10% blends. We run 15w-40 in it for engine oil.

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#298434 - 12/27/05 10:10 AM Re: Old Gas powered Tractor..Need Lead Substitute?
Shannow Offline


Registered: 12/12/02
Posts: 33723
Loc: Oz
I'd suggest that it would be wise to lubricate the top end.

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#298435 - 12/27/05 10:46 AM Re: Old Gas powered Tractor..Need Lead Substitute?
Strjock81 Offline


Registered: 11/29/04
Posts: 347
Loc: Illinois
With?

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#298436 - 12/27/05 10:48 AM Re: Old Gas powered Tractor..Need Lead Substitute?
Strjock81 Offline


Registered: 11/29/04
Posts: 347
Loc: Illinois
With?

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#298437 - 12/27/05 05:29 PM Re: Old Gas powered Tractor..Need Lead Substitute?
BUBBA0420 Offline


Registered: 03/22/04
Posts: 362
Loc: Cleveland Ohio
Go to www.batterystuff.com and you can purchase
Tetra Ethyl Lead (Yes the real thing)Mant lead
substitutes do not work. The only ones I would
trust would be for Marine Use such as Valvetect
but the real thing can still be had

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#298438 - 12/27/05 07:59 PM Re: Old Gas powered Tractor..Need Lead Substitute?
Russ300H Offline


Registered: 04/09/05
Posts: 491
Loc: Massachusetts
WOW Bubba GREAT LINK!! The antique cars with 10-1 compression are having trouble lately with pinging and overheating on todays gas. This SHOULD be a solution.

Thanks

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#298439 - 12/27/05 09:47 PM Re: Old Gas powered Tractor..Need Lead Substitute?
txmatt Offline


Registered: 08/20/03
Posts: 64
Loc: Texas
Great timing... finally dug the old Mustang out of the garage after a year of being entombed and am driving her for a few warm and light traffic days this week. I've got a bottle of Redline Lead Sustitute that I forgot to open and dump some in last night. I'm interested to see how it works...

http://www.redlineoil.com/whitePaper/12.pdf

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#298440 - 12/27/05 11:54 PM Re: Old Gas powered Tractor..Need Lead Substitute?
Mickey_M Offline


Registered: 08/13/04
Posts: 1001
Loc: Baltimore
"Do any of you guys have any ideas if I ought to add a lead substitute from now on?"

Probably. The Federation of British Historic Vehicle Clubs approves the following lead substitutes to prevent valve recession:

Millers VSP Plus, (manganese)
Red Line Lead Substitute, (sodium)
Superblend Zero Lead, (potassium)
Castrol Valvemaster & Valvemaster Plus (phosphorus)
Carplan Nitrox 4-Star (potassium) & 4-Lead (manganese)

All of these have the advantage over Tetra Ethyl Lead of being non-toxic when handled. Tetra Ethyl Lead could cause some nasty problems if gotten on the skin.


.

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#298441 - 12/27/05 11:58 PM Re: Old Gas powered Tractor..Need Lead Substitute?
Redwing Offline


Registered: 07/04/03
Posts: 17
Loc: Michigan
I also have classic tractor fever!! LOL
For years I have added Marvel Mystery Oil to both my gas tractors (Allis-Chalmers D17 IV and a Farmall A)and these are hard woking tools I rely on. I will run Seafoam in the winter just because "I believe" it is a better choice to stabilize the gas but less top end lube.

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#298442 - 12/28/05 12:30 AM Re: Old Gas powered Tractor..Need Lead Substitute?
BUBBA0420 Offline


Registered: 03/22/04
Posts: 362
Loc: Cleveland Ohio
Redwing: Good Idea on the MMO I use it
religiously in all my vehicles,boats and lawn
equipment. Russ: The tetra Ethyl Lead actually
has mixing instructions on the side of the can
telling how much to use to aquire the octane
you need or how much to use for valve seat protection.

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#298443 - 12/28/05 02:42 AM Re: Old Gas powered Tractor..Need Lead Substitute?
Redwing Offline


Registered: 07/04/03
Posts: 17
Loc: Michigan
Just remember we are talking about an engine that is below 7.5:1 com ratio. 87 octane is plenty for this engine.
JUST LUV THE SOUND OF AN OLD 4 CYLINDER GAS TRACTOR.

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#298444 - 12/28/05 05:02 AM Re: Old Gas powered Tractor..Need Lead Substitute?
michaelc80 Offline


Registered: 06/22/04
Posts: 1779
Loc: Central Iowa
Strjock81,
No, most old gasoline tractors do NOT need any fuel additives. Most came with hardened valve seats so lead additives are a waste of money.

Don't know if you're familiar with it, but there is a great forum for old tractors at www.mytractorforum.com. It's a great bunch of old geezers who have a wealth of knowledge about old iron.

I currently have a 1947 Ford 2N and have had and restored a 1952 Case 310 Utility and a 1949 VAC.

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#298445 - 12/28/05 10:13 PM Re: Old Gas powered Tractor..Need Lead Substitute?
Ken2 Offline


Registered: 12/02/02
Posts: 6361
Loc: Washington St.
"A federal sponsored study of older gasoline-powered farm equipment showed some performed satisfactorily on unleaded gasoline, but most experience valve-seat wear, especially during the water pumping portion of the testing. As discussed previously, operating at light load, replacing the valve seats with hardened inserts, or using lead substitute additives can help solve the valve-recession problems in critical engines."
http://www.chevron.com/products/prodserv/fuels/bulletin/unld-gas/


Ken

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