Valve Lash 2L-TE

[light_duty]

Anybody know the valve clearance settings on the 2L-TE?

I've got the 2L-T manual, just want to make sure the settings don't differ for the EFI model.

Yes I've done a search.


Thanks,
Robin

[crushers]

same settings

[2rivers]

From the 2L and 3L FSM - not the black 2-LT supplement.

INtake 0.2 - 0.3 mm 0.008 - 0.012 in
Exhaust 0.4 - 0.5 mm 0.016 - 0.02 in

Right on....you must be close to starting back up eh? Did you block off the EGR while you had everyting apart?



johnny

[crushers]

did you do the fixed fan conversion?
i went on a run with my 2LTE and the buger was overheating climbing the snow covered hills so tomorrow i do the fixed fan swap and see if ti makes a difference...
i am so sick of running in the red when booting up thpse long snowy steep hills in the foot hills around here...
love the truck otherwise...

[light_duty]

Originally Posted by 2rivers

From the 2L and 3L FSM - not the black 2-LT supplement.

INtake 0.2 - 0.3 mm 0.008 - 0.012 in
Exhaust 0.4 - 0.5 mm 0.016 - 0.02 in

Right on....you must be close to starting back up eh? Did you block off the EGR while you had everyting apart?


johnny

Thanks you guys...good to know I'm on the right track. Yeah, we're getting there. Should get the head back from the machinist this week. I'm undecided what to do about the EGR. I was tempted to block it off at the exhaust manifold, but I'm not sure if that's a good idea. Seems to me it would improve exhaust flow, but I don't know if the EFI measures something in the EGs (temp, etc.) to help calculate fuel injection, etc. I'm tempted to simply disable it by tying off the vacuum line, so I can enable it again if necessary. Johnny, what did you do with your EGR?

Also not sure what to do about the fan. I don't like the idea of losing HP and loading the engine at highway speeds (with a fixed fan), but obviously I am concerned about keeping this engine cool. I might start by rebuilding the clutch and see how it works for me. If it doesn't cool in situations like Wayne describes, I might just bolt it up solid. After all, this is an off road vehicle. I've got the Civic for highway driving...

I'll be interested to hear about the results of your experiences, Wayne.

Robin

[2rivers]

Since the head swap I havent seen the temp gauge move from lower 1/3, regardless of hills and I have really been stomping on it. To be fair I havent plowed through deep snow yet. I didnt block the EGR but wish I had - the less of that cr@p the better. Is your trucks automatics? I think I will get an aux trans cooler for mine. I think the rad size is adequate for cooling but with the buiilt in trans cooler I think that just thows gas on the fire.

??
johnny

[brownbear]

You guys should consider going to a highflow electric fan assy, then on the highway you have the extra horsepower. While offroad you have the airflow while putzing around. Also you can wire it up to include an off switch inside if you have to do any water crossing. The fixed fan may auger in the water with much more flex, not sure what clearances you have, could it touch the rad? while crossing water?

My friend has a 22r 4runner he pulled the stock fan and got a electric set up. I used to think the electric was not the way to go till I saw his set up. Adjustable thermostat, he can dial the temp in where ever he wants.

Maybe the 4runner rad and Prado rad are close in size. Although I have not thought about the 24v issue.....that would have to be considered.

[light_duty]

Brownbear, that sounds tempting, but I've been prejudiced against electric fans by some of the posts on this board. What the hell, though, if everything else on the bloody truck is electronic. Besides, it does sound like a good setup for these rigs and their marginal cooling systems.

I'm not sure what you mean about the 24v issue. The LJ78 is 12v, presumably your friend's 4Runner is the same?

I'll check into it - thanks.

Robin

[brownbear]

Your 12v...great. I have been also thinking of going to elec to try and free up some power. I most likely will do something aftermarket, rather than going with a taurus fan set up......

here first hit I had on Google

http://www.flex-a-lite.com/auto/html/howtoelectric.html

With the problems those 2l-t seem to have I would not hesitate to go electric.

If electric is soo bad why are most new cars all electric?

If your putzing on the trail at low rpms and climbing hills(eng under load) then at least these things crank up and keep it cool.

My friends is pretty cool on his runner.. I love how the temp is adjustable.

[2rivers]

Is that guy in town BB? If so I would like to see that set up..


Johnny

[brownbear]

Originally Posted by 2rivers

Is that guy in town BB? If so I would like to see that set up..


Johnny

No, but he will come thru in the spring...."if" I get my truck finished by then....we should plan a wheeling trip up the dome mountain or telkwa pass to Terrace....or somewhere....

He travels thru to go to the Charlottes every spring. Should be pretty cool Runner by the time he gets here. He loves doing mods....

[harveya]

Originally Posted by crushers

did you do the fixed fan conversion?
i went on a run with my 2LTE and the buger was overheating climbing the snow covered hills so tomorrow i do the fixed fan swap and see if ti makes a difference...
i am so sick of running in the red when booting up thpse long snowy steep hills in the foot hills around here...
love the truck otherwise...

Wayne.

Not sure on the LC with the 2LTE but the Surf/4Runner has an electric fan in front of the Radiator (certainly on the Auto) which comes on if the coolant gets too hot. You can easily make this a switchable / permanent fan by disconnecting the wire to the coolant sensor for the fan (it's on the radiator on the Surf. Interrupt one of the wires and fit a switch, then reconect to the sensor. When you switch the switch to disconnect the circuit, the fan will come on, when you remake the switch the fan will go off unless the engine is hot when it will also run.

Good mod this one.

Alternatively the easiest way to make a permanent fan as long as you don't mind the noise:

Take off the viscous coupling.
Drill two holes through it
Bolt through with long bolts.
Refit
you now have a permanent fan.

[crushers]

Originally Posted by harveya

Wayne.
Alternatively the easiest way to make a permanent fan as long as you don't mind the noise:
.

i am deaf anyway, thanks for the write up...

[Greg_B]

Originally Posted by harveya

Not sure on the LC with the 2LTE but the Surf/4Runner has an electric fan in front of the Radiator (certainly on the Auto) which comes on if the coolant gets too hot.

Interesting. There's been talk here that the Surf/4Runner is possibley the worst of all for the 2LT due to tight engine bay and limited air flow. So, am I infering correctly that even with an electric fan the head gaskets go in this application? Makes ensuring your cooling system is 100% even with an electric of fixed fan mandatory.

gb

[harveya]

Originally Posted by Greg_B

Interesting. There's been talk here that the Surf/4Runner is possibley the worst of all for the 2LT due to tight engine bay and limited air flow. So, am I infering correctly that even with an electric fan the head gaskets go in this application? Makes ensuring your cooling system is 100% even with an electric of fixed fan mandatory.

gb

Greg.
Yep mine went even after flushing out the system, checking cooling system etc. Yes the Surf engine bay is really tight and with the auto the AC rad is under the engine making the air flow out of the engine bay even worse. A good thing that can help is some rear facing bonnet scoops like subaru imprezza ones reversed to allow the engine bay hot air to clear out better

[crushers]

another thing i am trying with this LJ78 is a snorkel, i have not found one specific to the 78 series so i am adapting one for the BJ70 to work (hopefully). i am trying to get fresh cool air into the system as well as maybe reducing the amount of work the turbo has to do to get the air through the system.

i might, if everything else fails try propane injection on this unit to see if it helps.
fixed fan
snorkel
intercooler
propane injection

note:
unless the hill is long the 2LTE moves the LJ78 down the road with no issues, it is working it HARD off road that really makes this engine over heat.

[harveya]

I still think that the best fix is the larger exhaust, helps get the hot exhaust gasses away faster and helps the turbo spin up quicker, overall the engine is working less hard.

Also anything you can do to get the hot air out of the engine bay helps, and rear facing vents in the hood or an hood fan (pacet do one) will also help.

However once mine had the new head on it I never had any issues with overheating even when off roading or going up hills.

Another big point is that on the Surf (not sure on the LJ), the transmission cooler is on the bottom of the rad - fitting a separate transmission cooler also helps keep the engine cooler as there is less transferred heat into the coolant.

[light_duty]

Originally Posted by 2rivers

From the 2L and 3L FSM - not the black 2-LT supplement.

INtake 0.2 - 0.3 mm 0.008 - 0.012 in
Exhaust 0.4 - 0.5 mm 0.016 - 0.02 in

Just to confirm - these are the settings for a cold engine? Sorry - manual in dad's garage with truck.

Thanks
Robin