AGRMGT wrote:As per you email enquiry our Toyota vehicles are the current style V6 4.0L auto hilux fitted with the Impco injected gas system. We have taken out extra engine coverage from an external insurance provider for the valve train on each vehicle. Impco can assist you with this enquire. Maybe the best alternative is contact the GASMAN at Alexandria and speak to them.
We haven’t had any complaints so far but we have had five vehicles suffer with valve guide issues and we fitted flash lube kits to these vehicles which seems to have solved our problems.
Hope this helps.
AGRMGT wrote:So is anyone running their V6 4Ltr on LPG?
Mine is starting to get thirsty on 31's, and hate to think how much more it'll chew when I put on 33's...
mmaaxx wrote:Hinestly, should have thought about that before buying a V6 hilux.....Its why I bought a diesel.
I had an 03 V6 and with 32's, driving like a grandpa, I was getting 13.5 per 100km on average.....offroad...forget about it, 3 jerry cans extra on a weekend away would barely help......
The thing made my alcohol problem look tame....LOL
thats why I went the diesel, I learnt me lesson, with all the mods and the auto I am getting 11-11.5 per 100km.
anyway, back on LPG, it was my understanding that Toyota valve seats on all the newer engines were the hardened variety anyway, and that with any LPG system fitted, you should run a drip fed lube into the intake anyway.
Quinny23 wrote:Diesel services are every 10K... just fyi...
In terms of power i dont really notice, i read somewhere the system i use (landy Renzo) on the dyno went from 116kw to 109kw, i dont feel the torque is any different.lpgsr5 wrote:All toyota valve seats have been hardened for years, the issue has more been varying quality of valve material used. Speaking to colleagues in the reconditioning business one of the worst offenders is the 2.7lt 4cyl engine. As per a previous post the main issue with the Prado/Hilux 4.0 is the valve guides binding up due to varying clearance tolerances and gas being a dry fuel. I have fitted a flashlube drip kit and will hope for the best. At least with SVI every start is on petrol which helps. If I were heavy towing I would probably flick back to petrol for the long nasty hauls on certain hills eg Ourimbah or Mooney on the Pacific to give the exhaust valves every fighting chance of keeping cooler and not torching themselves.
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