lead substitutes

[momark]

I have heard vaious theories and opinions concerning the need for lead substitutes, or the lack thereof. Just wanted to get some of you guys' opinions, as you seem to be quite a knowledgeable bunch of folks. 1963 Ford 4000 Gas.
Thanks for any info,
mark

 

[momark]

I have heard vaious theories and opinions concerning the need for lead substitutes, or the lack thereof. Just wanted to get some of you guys' opinions, as you seem to be quite a knowledgeable bunch of folks. 1963 Ford 4000 Gas.
Thanks for any info,
mark

 

[Soundguy]

Has hardened valve seats.. besides.. tetra ethyl lead wasn't valve lube.. it was octane modifier to prevent spark knock... gas was way low octane in the 1950's...

Soundguy

 

[Soundguy]

Has hardened valve seats.. besides.. tetra ethyl lead wasn't valve lube.. it was octane modifier to prevent spark knock... gas was way low octane in the 1950's...

Soundguy

 

[rambler]

Waste of money.

If you already have hardened valve seats, you are good to go.

If you don't have hardened seats, it will cost you more in lead additive prices that what a valve job would cost you - just run it without until it needs a valve job in 5000 hours or so, & you will have saved money.

Considering leaded gas has been off the market for several decades, likely your tractor has been runnig on unleaded for quite some time.

--->Paul

 

[rambler]

Waste of money.

If you already have hardened valve seats, you are good to go.

If you don't have hardened seats, it will cost you more in lead additive prices that what a valve job would cost you - just run it without until it needs a valve job in 5000 hours or so, & you will have saved money.

Considering leaded gas has been off the market for several decades, likely your tractor has been runnig on unleaded for quite some time.

--->Paul

 

[dknarnd]

I have a JD 1010 which I believe is early 60's vintage my Dad bought about 12 years ago. After running it one or two years on unleaded fuel it started running very rough and missing allot. Started mixing lead additive and Marvel Myestry Oil with the gas and after a year of use it started running excellent. I don't find the lead additive to be very expensive, it only takes about 1 ounce per 5 gallon and the cocktail I use also includes 2 ounces of Marvel per 5 gallon. This same mix goes into my JD 52B also.

 

[dknarnd]

I have a JD 1010 which I believe is early 60's vintage my Dad bought about 12 years ago. After running it one or two years on unleaded fuel it started running very rough and missing allot. Started mixing lead additive and Marvel Myestry Oil with the gas and after a year of use it started running excellent. I don't find the lead additive to be very expensive, it only takes about 1 ounce per 5 gallon and the cocktail I use also includes 2 ounces of Marvel per 5 gallon. This same mix goes into my JD 52B also.

 

[Soundguy]

I'd wager the MMO is what helped you.. not the lead substitute.. here's why.

#1.. tetra ethyl lead was not added for valve lube as the wive's tail goes.. it was an octane modifier to prevent spark knock ( pre-ignition).

#2 The MMO IS an upper cyl lube. My guess is you were getting sticky valves, and the MMO helped free them up.

#3, and most important. If your unit didn't have hard valve seats, and the seats had eroded in the time that you were using unleaded gas and no lead substitute, then when yuo started using the lead substitute again.. do you think the valve seats would have megically healed, and the erosion was gone just by you adding lead substitute in?.. just ain't gonna happen. Most likely, the MMO, and the lead substitute both have a lube compound in it, and that was what helped. As a test.. you could just try running the MMO and see what it does... Also.. check your technical manual.. if it had hard valves seats 9 probably did ).. then it was good to go anyway.. besides.. as mentioned.. TEL wasn't a valve lube.. etc.. If you do continue to use the lead substitute.. post the brand name.. I'll see if they are selling any stock /forums/images/graemlins/wink.gif

Soundguy

</font><font color="blue" class="small">( I have a JD 1010 which I believe is early 60's vintage my Dad bought about 12 years ago. After running it one or two years on unleaded fuel it started running very rough and missing allot. Started mixing lead additive and Marvel Myestry Oil with the gas and after a year of use it started running excellent. I don't find the lead additive to be very expensive, it only takes about 1 ounce per 5 gallon and the cocktail I use also includes 2 ounces of Marvel per 5 gallon. This same mix goes into my JD 52B also.
)</font>

 

[Soundguy]

I'd wager the MMO is what helped you.. not the lead substitute.. here's why.

#1.. tetra ethyl lead was not added for valve lube as the wive's tail goes.. it was an octane modifier to prevent spark knock ( pre-ignition).

#2 The MMO IS an upper cyl lube. My guess is you were getting sticky valves, and the MMO helped free them up.

#3, and most important. If your unit didn't have hard valve seats, and the seats had eroded in the time that you were using unleaded gas and no lead substitute, then when yuo started using the lead substitute again.. do you think the valve seats would have megically healed, and the erosion was gone just by you adding lead substitute in?.. just ain't gonna happen. Most likely, the MMO, and the lead substitute both have a lube compound in it, and that was what helped. As a test.. you could just try running the MMO and see what it does... Also.. check your technical manual.. if it had hard valves seats 9 probably did ).. then it was good to go anyway.. besides.. as mentioned.. TEL wasn't a valve lube.. etc.. If you do continue to use the lead substitute.. post the brand name.. I'll see if they are selling any stock /forums/images/graemlins/wink.gif

Soundguy

</font><font color="blue" class="small">( I have a JD 1010 which I believe is early 60's vintage my Dad bought about 12 years ago. After running it one or two years on unleaded fuel it started running very rough and missing allot. Started mixing lead additive and Marvel Myestry Oil with the gas and after a year of use it started running excellent. I don't find the lead additive to be very expensive, it only takes about 1 ounce per 5 gallon and the cocktail I use also includes 2 ounces of Marvel per 5 gallon. This same mix goes into my JD 52B also.
)</font>