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Outer Limits 4x4 Board Forum Index » Toyota
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vanzbrown
Joined: 10 Jun 2005
Location: Victoria
Posted: Wed Oct 26, 2005 9:49 pm
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What tricks are there to tuning up an old 2H...
What generally gets tested when an old diesel goes in for a tune up.
Is there much that can be tweaked if i booked it in somewhere or is there not much too it and im better off doing it myself?
Just starting to think that over the past few months performance has started to really suck as compared to about 6mths ago (go the 2H)
Thanks
Leeroy
joel HJ60
Joined: 01 May 2005
Location: Belmont2280, Newcastle, N.S.W. And proud of it!
Posted: Wed Oct 26, 2005 10:17 pm
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Injection timing. Check it out. Maybe advance it a tad it you have a bigger exhaust and header + a snorkel fitted.
Compression test. See if your actually firing on all 6 properly. Are your glow plugs in good condition? Also the pre heating, charge system. Are the plugs being charged and fired properly.
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joel HJ60
Joined: 01 May 2005
Location: Belmont2280, Newcastle, N.S.W. And proud of it!
Posted: Wed Oct 26, 2005 10:18 pm
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There some things I would like to get done. Vale stems as well, and piston rings checked out.
Also are the valve clearances to spec??
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Last edited by joel HJ60 on Wed Oct 26, 2005 10:30 pm; edited 1 time in total
vanzbrown
Joined: 10 Jun 2005
Location: Victoria
Posted: Wed Oct 26, 2005 10:30 pm
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pre heating system is a problem... its clickin on and off more these days, and draining a @&@&@&@& load more off my battery...
Some mornings, i wait till the light goes off, then wait till i hear it click and start it up and my yard still gets full of white smoke...
Generally starts up fine though for the rest of the day...
I thnk it may need some preventitive maintenence...
Leeroy
joel HJ60
Joined: 01 May 2005
Location: Belmont2280, Newcastle, N.S.W. And proud of it!
Posted: Wed Oct 26, 2005 10:33 pm
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Basic stuff will go a fair way but. Engine oil filter, fuel and air filters. The basics. I wander what it costs for the pump timing to be checked?
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rock hopper
Joined: 08 Sep 2004
Location: GYMPIE QLD
Posted: Thu Oct 27, 2005 7:41 am
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joel HJ60 wrote:
Basic stuff will go a fair way but. Engine oil filter, fuel and air filters. The basics. I wander what it costs for the pump timing to be checked?
i charge to set the timming on a 2h $170-00 .
$90 to replace the diaframe .
i know your in vic but it aroung 3 hours to set the timming .
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joel HJ60
Joined: 01 May 2005
Location: Belmont2280, Newcastle, N.S.W. And proud of it!
Posted: Thu Oct 27, 2005 1:23 pm
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rock hopper wrote:
joel HJ60 wrote:
Basic stuff will go a fair way but. Engine oil filter, fuel and air filters. The basics. I wander what it costs for the pump timing to be checked?
i charge to set the timming on a 2h $170-00 .
$90 to replace the diaframe .
i know your in vic but it aroung 3 hours to set the timming .
$170 sounds reasonable! What's the diaphram?
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Den.R
Joined: 29 Jul 2004
Location: Sydney
Posted: Thu Oct 27, 2005 2:30 pm
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how do you know that you have the timing right? I know with a petrol engine you can hear the thing ping however the old 2h's are noisey and it is hard to hear the thing ping (other than its normal rattle)if the timing is too far advanced.
Do you spill time it every time you advance it? I have a 2h turbo, currently at around 7psi, with snorkel and 3' system and would love for it to go better but am hesitant as I don';t want to blow the thing.
carts
Joined: 28 Sep 2003
Location: Hornsby depot, annoying Gribble.
Posted: Thu Oct 27, 2005 4:57 pm
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Den.R wrote:
how do you know that you have the timing right? I know with a petrol engine you can hear the thing ping however the old 2h's are noisey and it is hard to hear the thing ping (other than its normal rattle)if the timing is too far advanced.
Do you spill time it every time you advance it? I have a 2h turbo, currently at around 7psi, with snorkel and 3' system and would love for it to go better but am hesitant as I don';t want to blow the thing.
I run 13psi on my 2h. But i am also intercooled. Goes pretty nice though.
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dumbdAnce wrote:
Go home Carter. You're a big dumb stupid head.
rock hopper
Joined: 08 Sep 2004
Location: GYMPIE QLD
Posted: Thu Oct 27, 2005 5:35 pm
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joel HJ60 wrote:
rock hopper wrote:
joel HJ60 wrote:
Basic stuff will go a fair way but. Engine oil filter, fuel and air filters. The basics. I wander what it costs for the pump timing to be checked?
i charge to set the timming on a 2h $170-00 .
$90 to replace the diaframe .
i know your in vic but it aroung 3 hours to set the timming .
$170 sounds reasonable! What's the diaphram?
A DIAFRAME IS in your injector pump .
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4x4 PARTS + ACCESSORIES
1 DuRIETZ COURT GYMPIE 4570
joel HJ60
Joined: 01 May 2005
Location: Belmont2280, Newcastle, N.S.W. And proud of it!
Posted: Thu Oct 27, 2005 8:15 pm
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ah DIAFRAME sorry
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timcruiser
Joined: 02 Oct 2005
Location: south burnet
Posted: Thu Oct 27, 2005 8:20 pm
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joel HJ60 wrote:
ah DIAFRAME sorry
I think it is DIAPHRAM
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carts
Joined: 28 Sep 2003
Location: Hornsby depot, annoying Gribble.
Posted: Thu Oct 27, 2005 8:37 pm
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timcruiser wrote:
joel HJ60 wrote:
ah DIAFRAME sorry
I think it is DIAPHRAM
hmmm, i think he means a diaphragm. The 'g' is silent.
And the diaphragm in question is the governor diaphragm. When it fails, and tears and starts to leak, your car will start to idle higher and overfuel. Its quite common in 2h's and 3b's.
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dumbdAnce wrote:
Go home Carter. You're a big dumb stupid head.
carts
Joined: 28 Sep 2003
Location: Hornsby depot, annoying Gribble.
Posted: Thu Oct 27, 2005 8:49 pm
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As to the original question about how to tune up a 2h, i got nothing.
Timing, fueling and compression is about the only things besides general maintenance that will make it go harder. And any gains you make will be minimal.
Turbo is the best performer, then go extractors if you are on a cheaper budget.
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dumbdAnce wrote:
Go home Carter. You're a big dumb stupid head.
joel HJ60
Joined: 01 May 2005
Location: Belmont2280, Newcastle, N.S.W. And proud of it!
Posted: Thu Oct 27, 2005 11:46 pm
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What did your entire turbo + intercooler setup cost?
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carts
Joined: 28 Sep 2003
Location: Hornsby depot, annoying Gribble.
Posted: Fri Oct 28, 2005 5:01 pm
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joel HJ60 wrote:
What did your entire turbo + intercooler setup cost?
if that question was aimed at me, it cost about $3800.
That includes new turbo, manifold, exhaust, installation, plumbing, intercooler core, intercooler plumbing in 3 inch stainless steel and blow off valve and boost gauge.
I think it was a reasonable investment.
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dumbdAnce wrote:
Go home Carter. You're a big dumb stupid head.
vanzbrown
Joined: 10 Jun 2005
Location: Victoria
Posted: Fri Oct 28, 2005 5:08 pm
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carts wrote:
joel HJ60 wrote:
What did your entire turbo + intercooler setup cost?
if that question was aimed at me, it cost about $3800.
That includes new turbo, manifold, exhaust, installation, plumbing, intercooler core, intercooler plumbing in 3 inch stainless steel and blow off valve and boost gauge.
I think it was a reasonable investment.
Thats a cracker of a price... How much of that included work you did yourself and/or mates rates...
Thats sensational
Leeroy
carts
Joined: 28 Sep 2003
Location: Hornsby depot, annoying Gribble.
Posted: Fri Oct 28, 2005 5:56 pm
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vanzbrown wrote:
carts wrote:
joel HJ60 wrote:
What did your entire turbo + intercooler setup cost?
if that question was aimed at me, it cost about $3800.
That includes new turbo, manifold, exhaust, installation, plumbing, intercooler core, intercooler plumbing in 3 inch stainless steel and blow off valve and boost gauge.
I think it was a reasonable investment.
Thats a cracker of a price... How much of that included work you did yourself and/or mates rates...
Thats sensational
Leeroy
Well, it was a work in progress for a while.
The turbo kit from denco cost $2400 about 2 years ago. That came with exhaust, manifold, turbo, cross over pipe, oil plumbing etc....a complete kit ready to be installed. Dumbdunce installed the kit for about $400. So stage one of the turbo install cost roughly $2800.
I picked the intercooler up from ebay for $240. I made up all the mountings for it and removed the front grill. Using a knibbler, dumdunce and I cut holes in the front apron just below the headlight surrounds to fit 3 inch pipe through.
I then took the car to windsor exhaust centre. They fabbed up 3 inch madrel bent stainless steel piping for the intercooler. Joints were done in silicone fittings. It cost $640 from memory for that component, which i thought was pretty reasonable for a full custom setup.
After all of that, compressor surge was pretty bad, so i picked up a new blow off valve off ebay for about $90. Installation was pretty simple, with the use of a mig welder and a decent hole saw. Blow off valve plumbing cost about $40 or so. Boost gauge was about $50.
All in all, that adds up to about $3860. Give or take another $100 in random parts and labour. If i was to do it again, i dont think i could do the intercooler setup any better or cheaper. The turbo component though, i reckon using a 2nd hand turbo and a custom made manifold, you could do it for about $1400 including all parts and labour (excluding full exhaust system) jus modding the original exhaust.
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dumbdAnce wrote:
Go home Carter. You're a big dumb stupid head.
dumbdunce
Joined: 15 Feb 2003
Location: Seven Hills NSW
Posted: Fri Oct 28, 2005 6:05 pm
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vanzbrown wrote:
carts wrote:
joel HJ60 wrote:
What did your entire turbo + intercooler setup cost?
if that question was aimed at me, it cost about $3800.
That includes new turbo, manifold, exhaust, installation, plumbing, intercooler core, intercooler plumbing in 3 inch stainless steel and blow off valve and boost gauge.
I think it was a reasonable investment.
Thats a cracker of a price... How much of that included work you did yourself and/or mates rates...
Thats sensational
Leeroy
I installed the turbo, which was around 2800 installed from memory. it is a Denco kit with schwitzer turbo and includes full exhaust. the Intercooler was sourced on ebay, around $300?, Carts mounted it himself, we cut some holes in the radiator support panel for the plumbing, and the intercooler plumbing was supplied and installed in stainless steel by a reputable exhaust shop. we then found that with the air volume in the intercooler and boost over 10psi, boost was spiking (off the top of 15psi gauge) due to the throttle butterfly used to govern fuel delivery, so a BOV was sourced on ebay modified to work with the very low vacuum generated in the 2H inlet, then installed to the intercooler plumbing.
with a bit of imagination and perserverance its possible to do a custom turbo on a 2H with a second hand import turbo for very cheap - possibly as cheap as new extractors/full exhaust - and even if the turbo costs a few hundred more, the extra power is definitely worth it.
Although the 2H is not the best candidate for turbocharging, cart's one is standing up to 13psi quite well - the key thing is to keep the EGT's low - IO think we have his set up for 500C max post turbo.
It keeps up with (ok it's slightly quicker!) than my 80 series factory turbo multivalve.
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