Sorry it is late getting back to you . It is a factory LP tractor as it is stamped in the serial tag that way. I think I figured out he fuel issue too. Both valves have liquid stamped on them but I think I was running that instead of vapor. I used the other valve today and it started and ran alot better.  Heck i might even bring it to Atwood this year:)  What is your email adddress? mine is <!-- e --><a href="mailto:joliver@aeneas.net">joliver@aeneas.net</a><!-- e -->. Might be easier to keep in touch that way .

[quote:3k3pgdsp][quote:3k3pgdsp]  Hey frank, I just bought an 1964 1800 LPG yesterday. The motor runs great and seems as there are no major problems except that the tilt steering lock? is missing or not working and some minor oil leaks that can probably be fixed by tightening some bolts and fittings. 

 I paid $3700 for it and thought that was pretty good deal. Hahah being as this is the first really big Oliver we have owned ( or any tractor for that matter I wasn't ready to watch it use fuel!hahaha However we run it for like 3 hours today and it used a little less than 10% so i guess that is ok.  

 Now that I have rambled on. The lever for the three point will not stay in the down position. You can push it down and it will work but it immediatly comes back up on its own.  HOw was friction held onto them si that this didn't happen? Springs or friction plates or what?  Also I tried the hydraulics and it wouldn't pick up our disk but I think that the fittings are wrong cause it lifted a HEAVY 3 point bush hog fine and I could see the hydraulic hoses being pressurized when I moved the levers.
 
 any suggestions on the three point lever? [/quote:3k3pgdsp]

You did get a good deal since the LP Olivers are hard to find. Is it a factory or field conversion LP and where did you come by it? As for your question I may be shooting in the dark since we never handled the larger Olivers. I think the control lever is held in position by a spring loaded friction disc. It can be adjusted by a stop nut located under the lever by either loosening or tightening. If you still have problems or the info I gave you is inaccurate give John Schwiebert a U2U message. He is checking this forum daily and is one of the most knowledgabe people I know. He is always glad to help. Good luck and let me know how it turns out.
Frank[/quote:3k3pgdsp]