Here is the blue (top) vs the orange(bottom):
LANDTANK fan clutch for S/C 1FZ
- Thread starter cruiserdan
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inkpot
SILVER Star
If you guys are just measuring at top dead center, you might want to measure it at the bottom also. My rig has a much larger gap at the top than it does at the bottom. As far as I can tell, the motor mounts are in good shape, so no sag from them. YRMV John
1973Guppie
Supporting Vendor
thx so much for these! and thx rick for the measurement. Looks like to me the stock blade curves backward and definetly sits rearward of the shroud much more than the flat 3fe fan. To me it seems the stock fan would "scoop" air better than the 3fe fan. Looks like it also sits closer to the shroud and sits further outward of the shroud. Hopefully I won't have to mod the shroud I have because of my aftermarket radiator, but we will see.
After speaking to CDAN in Moab this year on his impressions, i ordered one of these Landtank orange fan clutches, and went back to the stock fan.
My initial impressions is it is running much cooler staying around 180 vs the 190-195 the scan guage showed it running at before . To be fair, my Blue Fan clutch was not working well anymore (and not really that old), but this new Orange one from Rick seems to be a definite upgrade on my SC rig....
I will get it out a bit more in the heat and see if it continues to have the same great results i am seeing now
... but to this point i am real happy!
My initial impressions is it is running much cooler staying around 180 vs the 190-195 the scan guage showed it running at before . To be fair, my Blue Fan clutch was not working well anymore (and not really that old), but this new Orange one from Rick seems to be a definite upgrade on my SC rig....
I will get it out a bit more in the heat and see if it continues to have the same great results i am seeing now
... but to this point i am real happy!NLXTACY
Wits' End
Alright its time for me to chime in on this thread. Dan and I got the first two units but because I had so much going on I couldn't get to this project until last weekend. I changed out the coolant (again, less than 38k on it), changed the water pump with an actual OEM (old one was an AISIN with the names ground off), added the Orange Hub and replaced the fan shroud.
After re-reading this thread it seems that the fan discussion caught me off guard. I read that the original 1FZ was preferred, not required. Wrong! The original 1FZ fan is REQUIRED!!!! I learned that the hard way but got it all sorted out.
Immediately after installing the water pump (which had 38k on it) and replacing the fan clutch (which was a blue hub from Amazon modified with 30k cst with less than 15k on it) and adding back the fan shroud, I noticed a completely different fan engagement. The "roar" cycles differently and seems to stay on far longer than the modified blue hub. My blue hub seems to have stopped engaging when hot. Only way I can describe it based on fan sound.
Right after finishing up the install it was time to leave for a camping trip to Sequoia. 700 miles round trip later and both directions of the Grapevine and both directions of the 180 into Kings Canyon and the engine temps never reached about 193º... until I got a PO302 but that is completely unrelated and is totally my own fault. Even when I did get the PO302 my temps only climbed to 203º and even then only on the slow, long climbs in traffic on the 180 highway.
Keep in mind it was 109º when I left my house. It was between 90-95º in Sequoia with all hills. It was 108º on the Grapevine with well over 30 cars on the side of the road overheating. It was still 101º by the time I got home. My temps STILL never got above 193º.
My typical, driving around town, temps are currently 183º and sometimes peaks to 186º. One the frwy I tend to drop to 179-181º. Again, its over 100º ambient where I live in West Hills. To say this fan clutch mod is a winner is a complete understatement. To anyone that balks at the price, go take a look at my overheating thread. This is a winner and I seriously could not be any happier.
Take away notes for others:
• You will need to use the original 1FZ fan
• You will need the original water pump studs
• A new OEM water pump comes with the required studs
• You do NOT use the SC spacer
• The gap between the pump and clutch is for the pulley so don't freak out
• The 1FZ fan is about 2mm from the SC tensioner pulley which is ok since the fan flexes toward the radiator
• There is plenty of room between the fan and radiator...and I have a Ron Davis rad
• The water pump gasket only goes on one way
• Do NOT use any sealant on the gasket
• Put a piece of cardboard behind your radiator to keep from mucking the fins
• Make sure you have your SC wrench handy
Thanks Rick!
After re-reading this thread it seems that the fan discussion caught me off guard. I read that the original 1FZ was preferred, not required. Wrong! The original 1FZ fan is REQUIRED!!!! I learned that the hard way but got it all sorted out.
Immediately after installing the water pump (which had 38k on it) and replacing the fan clutch (which was a blue hub from Amazon modified with 30k cst with less than 15k on it) and adding back the fan shroud, I noticed a completely different fan engagement. The "roar" cycles differently and seems to stay on far longer than the modified blue hub. My blue hub seems to have stopped engaging when hot. Only way I can describe it based on fan sound.
Right after finishing up the install it was time to leave for a camping trip to Sequoia. 700 miles round trip later and both directions of the Grapevine and both directions of the 180 into Kings Canyon and the engine temps never reached about 193º... until I got a PO302 but that is completely unrelated and is totally my own fault. Even when I did get the PO302 my temps only climbed to 203º and even then only on the slow, long climbs in traffic on the 180 highway.
Keep in mind it was 109º when I left my house. It was between 90-95º in Sequoia with all hills. It was 108º on the Grapevine with well over 30 cars on the side of the road overheating. It was still 101º by the time I got home. My temps STILL never got above 193º.
My typical, driving around town, temps are currently 183º and sometimes peaks to 186º. One the frwy I tend to drop to 179-181º. Again, its over 100º ambient where I live in West Hills. To say this fan clutch mod is a winner is a complete understatement. To anyone that balks at the price, go take a look at my overheating thread. This is a winner and I seriously could not be any happier.
Take away notes for others:
• You will need to use the original 1FZ fan
• You will need the original water pump studs
• A new OEM water pump comes with the required studs
• You do NOT use the SC spacer
• The gap between the pump and clutch is for the pulley so don't freak out
• The 1FZ fan is about 2mm from the SC tensioner pulley which is ok since the fan flexes toward the radiator
• There is plenty of room between the fan and radiator...and I have a Ron Davis rad
• The water pump gasket only goes on one way
• Do NOT use any sealant on the gasket
• Put a piece of cardboard behind your radiator to keep from mucking the fins
• Make sure you have your SC wrench handy
Thanks Rick!
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I have to echo again what NLXTACY is saying, "I am very pleased" with the reduced running temps I am seeing with the stock fan and Orange fan clutch!
And while not cheap, the Orange Fan Clutch is worth it to me as well, to eliminate the frustration I was having overheating at times.
Especially in the high Mtn passes of Colorado, and in Moab.
Can't wait to test it in the passes now(maybe this weekend), and report back!
If you have an SC'd rig that has been overheating at times, I give Ricks Orange Fan clutch along with the Stock Fan, two thumbs up!
I have been running an early style stock brass radiator in my rig, since the stock plastic one died...
And while not cheap, the Orange Fan Clutch is worth it to me as well, to eliminate the frustration I was having overheating at times.
Especially in the high Mtn passes of Colorado, and in Moab.
Can't wait to test it in the passes now(maybe this weekend), and report back!
If you have an SC'd rig that has been overheating at times, I give Ricks Orange Fan clutch along with the Stock Fan, two thumbs up!
I have been running an early style stock brass radiator in my rig, since the stock plastic one died...
Thanks guys for the feed back.
As of this next batch of fan clutches (we do 5 at a time) water pumps studs will be included with all fan clutches. You just need to supply the stock fan for this mod.
As of this next batch of fan clutches (we do 5 at a time) water pumps studs will be included with all fan clutches. You just need to supply the stock fan for this mod.
2fpower
SILVER Star
Just got back from the high mountain passes in Colorado and Moab, and ended up having to blast the interior heater several times to keep temps under 205. I need to sign up for a set of these....
Josh, you should put a link to your vendor page in your sig line so us lazy folks can spend money easier.
Thank for the tecomendation this mod is actually the first stage in getting the most out of a TRD SC .stage II will be out as soon as I get my mule back.
Just ordered mine, great research and nice product. I'm fired up to install it!
2fpower
SILVER Star
Ordered mine.
Here is the link to order
http://ajikoverlandexchange.com/products-page/toyota-land-cruiser-80-series/page/2/
Here is the link to order
http://ajikoverlandexchange.com/products-page/toyota-land-cruiser-80-series/page/2/
Can the same thing be accomplished by changing spacer thickness?
inkpot
SILVER Star
Has been done. Don't know if it spaces fan closer to core than Landtanks diesel conversion.
The problem as I see it with trying to shim a stock clutch to the same position as this modified diesel clutch is the amount of Dowell engagement. The clutches are centered in the water pump via a Dowell or pin on the water pump .This ensures that the fan will run true and not excessively wear on the water pump bearings. So I decided to maintain that engagementt depth as spec'd by Toyota
Where did go??! This must have been what Woody was talking about. (.... a couple months ago ). I'll get on it.
We've ran into a problem with our source for the clutches. We have a plan B in place but there will be some delay on delivery.
Do you have an ETA on plan B? I ordered mine on Aug 14.
I need to also chime in and say this is a great product. It solved my SC-based overheating issues quite nicely. I did, however, need to stay with the SC fan because I simply couldn't fit the original fan in there without ripping up my radiator.
