LPGsuperchargedBrumby

for me its suddenly....cos i only got back from a year in aussie last wednesday....the ute hasn't been driven for the last 6 months but has been started and run for an hour every weekend.

after scratching my head for awhile i rang a very good mechanic that i used to work with to pick his brain on what the problem could be.....and got told that a cam worn on the back side (opposit the lobe) would cause the lifters to stick and hold valves open....he had exactly the same thing happen on a toyota diesel. so i need a new cam or to get my'n built up then reground....and don't have enough time to pull the motor apart to get the cam out sorted and back together before i need to travel 500 miles to a new job.....so i'm off to the local subaru wreckers to try find a replacement motor to get me going till i can rebuild my one....with a few select mods along the way....like 60thou off the heads:grin:

i think the WonderBrumby already has a D/R 5spd....at least it used to

LOL...yeah that was the first thing i looked for after looking at the valve/seats etc

can't do a leakdown test as the head is on the bench. there was no bubbles in the coolant and it wasn't loseing any

i thought about a cam problem...but the one set of lobes run both banks of cylinders an the L/H side was doing its thing without a problem so i ruled out the cam its self as the problem

its been run at least a month by my father

all look good....getting new rings just in case but the bores, pistons & rings look ok. even with totaly shagged rings it should still have little bit of compression shouldn't it?

i just got back to NZ....and on firing my brumby(EA81) up found that it had a distinctly tractor'ish sound to the motor....and was as gutless as a lada. it was running on only two cylinders after a little messing with what i thought was an ignition problem...... i found the following compressions #1....0 psi #3....25 psi #2....130 psi #4....130 psi i've just yanked the motor thinking i'd burnt valves or done a major on a headgasket.....got the head off and the valves look good and the headgasket hasn't been leaking. when i was cranking the motor to get the compression readings there was no 'whoosh' of air into or out of #1 sparkplug hole.....and there wasn't anywhere near the amount of air going into or out of #3 compared to #'s 2 & 4.....which got me thinking....can the hydraulic lifters stick so that a valve stays open?

do you have trouble holding you right foot up? A Brumby will chew 1Ltr per Km if it is fully nailed on a tight windy gravel road....19Km....19 liters gone.....7 minutes flat:headbang:...top guys in the national rally do the same piece of road in 6:15 8mpg to go get Maccas makes for expensive fast food:lol:

thats an EFI motor.....seems like thats what he trying to avoid

aren't the EZ30 a variable valve timing motor....if you where to use a stand alone ECU it would have to be able to control the funky valve gear

i run LPG (propane) and wouldn't switch back PRO'S: cleaner running oil doesnt get dirty like on liquid fuel high octane fuel Being a hippy motorhead CON'S: less MPG on propane tank has to be mounted somewhere finding room under bonnet to mount vapouriser can give problems in cold areas you can run dual fuel and on a fuel injected motor it shouldn't hurt you MPG on petrol or propane (converting a carb'd motor to dual fuel reduces your MPG because of the extra ventury of the propane ring) there is also propane injection systems available that duplicate your petrol injection system in operation and run a piggyback drive off your ECU.... i haven't had alot to do with these but know that the cold area problems are more of an issue as they need a propane pressure about 30psi higher that manifold pressure...and the colder the tank is the less pressure there in it...however i have seen a tank designed for use in canada(i think) that had a fuel pump in the tank to boost pressure in the cold

you mentioned that you had found some rally tyres i run retreads that are a copy of the early 80's dunlop rally tread pattern 175/70r13.....haven't managed to get it stuck yet (deliberate attempts aside)....and they are unreal on gravel roads.....like scary grip levels, enough that i was able to pass a wrx on a tight gravel road i drive alot cos he had road tyres on....at the speeds he was driving out the side windows when taking the corners....my ute was hardly stepped out. 300hp is no good without traction:burnout:

swap it out dude.......then open your FT box up to see whats fanged inside....

You do know what Fiat stands for don't you? Fix It Again Tomorrow.....

its a hitachi dude,looks the same as the one in my aussie brumby

TI is bad for that.....try having engine mounts for a 1900hp Deutz break on you:eek:.....the stainless steel ones i replaced them with will last forever.... titanium don't like vibration...especially on bends and welds

[start Hijack] not for much longer....found i don't like it here and have major problems getting my qualifications recognized which means i can't easley move to another part of aussie..... so i'm gapping it for home [End Hijack].....

Dude.....hate to be the one to say this but you talk alot.... 3000 posts.... thats alot, makes my 350 or so look pretty sad ....and some ppl on here have asked me why i want a disty&carbyed ej motor (abet on LPG/propane)? ECU's are evil capsules of doom and all devices wired to them were invented by the devil for the express purpose of causing misery to mankind.

with a machine like that thats going to take some self-control man...

If its backfiring out the carb i'd be looking at the igntion.....when i swaped to LPG i accidentaly reinstalled the disty one tooth advanced....and got deafening fireballs coming out the carb

if you got the one with the water choke all it needs is plumbed into you cooling system

s'ko.....thats a legendary subaru ballard dude......... by the way...what kinda milage are you getting out of the ej18?

if its just the housings that your moving then yes they can be rotated.....things only start getting funky when you mess with the impeller/shaft/expeller