More grunt from 1FZ-FE

[MS-75]

Unfortunately it's not a simple matter to remove the mixer, it's locktighted onto the TB and the inlet hose to the air cleaner has been shortened to fit so it won't reach the throttle body now.
The rest sounds like spiraling out of my budget range.
I'll keep thinking on it, thanks for your input.

Alan, a bit loctite and lengthening a hose is a trivial job.

Hell - I've even got one of those hoses lying around untouched - but reallly just some PVC and hoseclamps will extend it easily.

If you won't have a go at that, anything else you've asked about will be way out of your league anyway. (you'd have to pull the whole TB/gas ring assy to even be able to see the cams)

Just because it it's loctited on shouldn't stop you.

Post some picsof the set-up and we'll advise you on how to get it off and what to use to bridge the gap in the inlet hose. (or I'll send you the complete one I have for nothing but postage)

Sean

[alanrlow]

This motor makes 165 kw and 400 od nm on petrol , if your not prepared to even try an remove the gas ring then why keep asking what to do . Its a known fact that gas ring mixers have trouble keeping the correct mixture over the engines operating range, and its also well known in the trade these days not to fit this type of system to larger engines. Try the most easy thing and run it on straight petrol for a few hundered klm without the ring on.
Dave

OK OK calm down, I'm presently touring through NSW heading west. I'll be back in Perth in about 2 months. It's a bit hard to do anything much when your traveling every day and not much in the way of tools or wreckers around. I don't want to bodge something and then head off across the Nullarbour and have problems. I am gleaning any and all info I can to enable me to make changes when I stop for a while.
Alan.

[alanrlow]

Alan, a bit loctite and lengthening a hose is a trivial job.

Hell - I've even got one of those hoses lying around untouched - but reallly just some PVC and hoseclamps will extend it easily.

If you won't have a go at that, anything else you've asked about will be way out of your league anyway. (you'd have to pull the whole TB/gas ring assy to even be able to see the cams)

Just because it it's loctited on shouldn't stop you.

Post some picsof the set-up and we'll advise you on how to get it off and what to use to bridge the gap in the inlet hose. (or I'll send you the complete one I have for nothing but postage)

Sean

Please see post below. I'm presently touring through NSW heading west. I'll be back in Perth in about 2 months. It's a bit hard to do anything much when your traveling every day and not much in the way of tools or wreckers around. But I will take you up on that offer of the inlet pipe tho. If you're serious let me know and i'll PM you my address and send some money for post. Let me know how much.
The ring is locktighted and also grub screwed to the TB and doesn't need to be removed from TB for anything and looks like it's never been off either.

Cheers,
Alan.

[MS-75]

No worries alan.

Just drop me a PM when you're back in perth and we can sort it out.

[cambelt]

So you have never checked the valve clearance? cause the throttle body has to come off to do that, You may even have a burnt valve if you have done more than 40000klm on gas without checking the valves.
Dave

[hemi twofifteen turbo]

Rather than pull the gas ring off you could throw a vacuum gauge on. You can then see on the gauge what is going on. If at 2000rpm when heading up a hill you've got no vacuum under the gas ring then you know it's not a restriction. Some gas rings are hugely restrictive, others not so much. You can get a vacuum gauge or (possibly just buy a boost gauge as due to their popularity would be easier to find and possibly cheaper -- say $30) Just plumb it into the manifold, they usually just use a rubber hose you could slip onto an unused vacuum port and no real need for tools.


Unfortunately as someone suggested before you can't run a gas research throttle body as you stated earlier you need petrol when there is no LPG to cross the nullarbour!!


How is your temperature? prolonged detonation or pinging should show itself in a fair bit of extra heat. Also how much power difference is there on cool nights as opposed to a warm day?

[misk]

you can use a gas research throttle body with an EFI system, just need to fit a TPS...unless theres something im missing that makes the 1fz extra special?

[MS-75]

Nup -nothing makes it special at all.

Transferring the TPS and idle control was assumed knowlege.......

[misk]

lol apparently not?

[alanrlow]

So you have never checked the valve clearance? cause the throttle body has to come off to do that, You may even have a burnt valve if you have done more than 40000klm on gas without checking the valves.
Dave

As I said in a previous post, the gas mixtures were set and the shims were done 6 months ago just before the Unichip and dyno tune. Compression was in the 145-150 range so no burnt valves. I also run a flashlube.
Alan.

[alanrlow]

Rather than pull the gas ring off you could throw a vacuum gauge on. You can then see on the gauge what is going on. If at 2000rpm when heading up a hill you've got no vacuum under the gas ring then you know it's not a restriction. Some gas rings are hugely restrictive, others not so much. You can get a vacuum gauge or (possibly just buy a boost gauge as due to their popularity would be easier to find and possibly cheaper -- say $30) Just plumb it into the manifold, they usually just use a rubber hose you could slip onto an unused vacuum port and no real need for tools.


Unfortunately as someone suggested before you can't run a gas research throttle body as you stated earlier you need petrol when there is no LPG to cross the nullarbour!!


How is your temperature? prolonged detonation or pinging should show itself in a fair bit of extra heat. Also how much power difference is there on cool nights as opposed to a warm day?

I already have a vacuum gauge plumbed into the manifold. Light running, ie not towing it pulls around 20-30 CM/Hg sometimes hitting 40 on flat ground. When towing it is invariably on zero or a poofteenth above. On overrun down a hill it hits 60 or so. I think this is typical tho and about the same as the Pajero and Falcon before it. Same gauge too. Engine temps are good according to a Watchdog temp gauge, runs between 72-85, has hit 98 after climbing a very steep long range, towing, drops back to normal very quickly. The last is hard to answer, never tow at night, always setup camp by 3pm, leave the night to the trucks.

Alan.

[misk]

if you think its lacking power and kinda have to assume that if everything seems ok (compression, temps etc etc) then it would come down to the tune...

a friends dad did had a similar issue (not enough power to tow), they put a 454 big block in their landcruiser on straight gas lol problem solved

[alanrlow]

Alan, a bit loctite and lengthening a hose is a trivial job.

(or I'll send you the complete one I have for nothing but postage)

Sean

Hi Sean, well I'm back in Perth, what a trip, at least I had a tail wind across the Nullabour so the old girl went OK. I am still interested in the inlet hose if you still have it and are still willing to send it.
Firstly my email is [email protected]
My address is: 9 Aurora Drive
Atwell 6164
WA
I spose I'd better check we are talking about the right part, it's for a FZJ80 1FZ-FE 4.5l petrol.
If you could zap me back an email to the above address instead of going through Toymods that would be quicker. If you could let me know how much post it is or if it can be COD if you like, which ever you prefer. I'll get the money to you.

I'll await your email.

Cheers,
Alan

[cambelt]

Hey lets all go to Alans house .
best to edit your address off your post.
Dave

[alanrlow]

Hey lets all go to Alans house .
best to edit your address off your post.
Dave

Can if you like, it's only a postal address, I don't live there, I live in a caravan traveling the country but stupid government departments and license, rego, insurance etc all insist you must have an address. You wouldn't believe the hassles I've had getting a drivers license and removing myself from electoral roles.