Cruisergxl replied:

Hi Rowen,

I think that is a general suggestion for all LPG conversions. LPG converted engines run hotter than petrol and are more likely to burn the valves. Not sure about changing the tappers regardless, check the valve clearances first and see if they are in spec and then adjust/replace as necessary.

I'm no expert on this, could be the blind leading the blind here!

Cheers,

Chris

Member - DOZER replied:

Rowen
Drive it into the ground. Dont change anything but the oil regularly and plugs/points/leads. If you are serious about more power, cheakout Marks 4wd conversions for a 5 litre 308 or 5.8 chev conversion. If you want to make it more reliable, put extracters onit and electronic ignition aswell as a electric fuel pump.
If you havnt got one under there, put a oil drip feeder into the inlet (think they are called valve savers) and use straight diesel in it instead of that 20 dollar per litre oil.
Andrewwheredayathinkwer mike?

colin replied:

have a blower on my nissan really great . Have heard of problems with tojo motors with blowers having the harmoic balancer letting go which takes out the radiator fan and hub, but not sure which model motors. Col

Rowen replied:

Thanx for your responses guys!

Um, you hear alot of mixed reports about proper maintenance for GAS engines.
Like Andrew said, as long as you have the correct (Stainless Steel) valves added in your conversion, you can run your rig on LPG 24/7 eh? My '84 2F motor was apparently made 2 handle unleaded aswell as leaded, so I've been told its fine. The guy b4 me tho was gonna add Moreys Lubrication system ( 2 the valves? ).
Should i still flush thru the occassional leaded ( ive been told its a 'dirtier' fuel tho )? Do I change the valves ( does that make a 'ping' sound? when its time to change these )? Is Moreys the go?
I've got xtractors on the old girl, added HiClone on a m8's recommendation & got a Unifilter high performance air filter, but do electronic ignition & electric pumps really make that much difference? Do they argueably improve reliability or perormance?

Um, geez Col, radiator fan & hub been taken out! sounds a little scary eh? anyone else heard this or know anymore about Blowers on Cruiser 2f engine? A mechanic m8 of mine reckons its worth a shot.

Um, I wanna do up my 60 series Tojo ( on a budget ) 'cos I luv em. So, any ideas, feedback from anyone else reagrding engine performance & reliability would be appreciated! Especially if its not 2 xpensive!

Cheers & forever live the 60 tojo's!

Rowen