Work and improvement - june 2012
 
 
 
 
Operation planned long in advance with Michi (Desert-Tec). We wanted to enjoy our visit to Germany at the show Allrad (June 2012 in Bad Kissingen) north of Nuremberg to go to Desert-Tec, located Ellingen to the south of Nuremberg. Ellingen is also also known for its beer, one of the best in Germany! We arrive at nightfall on Sunday in the parking lot of Desert-Tec, a real Aladdin's cave of Toyota.

Monday morning, Michi has a lot of work, so work starts early. On the program: change 2 free wheel hubs brand AVM, mounted by the seller when we buy Woki because it was delivered as without wheeling hubs. To comply with the invoice, the company that had sold us Woki had mounted the AVM Hub because it was impossible to put back the original part Aisin without changing the half axle shaft too short

However, both mounted Hub on Woki were not compatible parts for Toyota HZJ78 but for Toyota 105, whose grooves are not quite identical: thus a forced assembly. Chef's surprise when disassembling! We can better understand the ongoing problems of leakage of grease on these hubs!

Further improvements in the equipment were the order of the day, we'll see after the "main course".
 
 
To explain the free wheel hub change, a schema is the simplest. This scheme was developed with the help of Fred of Forum Casa-Trotteur. Fred is a fount of knowledge of Toyota, its Zigzagcruiser site is a reference in the literature on the Land Cruiser.
 
     

Photo 01 : Free whell hub make AVM (you can see the command to disengage the wheel manually.) A little history on this part: Until the year 2000, Toyota HZJ were delivered with wheeling hubs, and from 2000 to 2003 they are mounted only on Europe models. Normal, since we have a lot of tar, hence the need to disengage the wheel on its axis. Their use on the frontdeck increases the fluidity of line while reducing noise and power consumption. These manually free wheel hubq enable savings of fuel and tire wear of the front, when it is not necessary to drive a four wheel drive
Photo 02 : After Michi has dismantled the cover.
Photo 03 : Normally the hub body is just out, at worst using an extractor, thread through the center of the propeller shaft .

 
     

Photo 04 : in fact, nothing comes out normally. The hub mounted by our seller, is not the model for our HZJ78. At the time, it had to be force-fitted on the axle shaft and is in pain that will be extracted. I see on the face of Michi that the thing will be harder than expected, I put my camera. A mechanic does not like to use a hammer and it's by necessity that the hammer resound in the workshop.
Photo 05 : The blowtorch is finally used to dilate the hub body that will not release the wheel shaft
Photo 06 : crowbars and hammer are in action

 
     
Photo 07 : The faces become strained. The hub must come out
Photo 08 : The AVM hub body falls to the ground, smoking, Houfff! It will be the same for the 2nd detachable hub.
Photo 09 et 10 : After extraction, cleaning grease to get a clearer
 
     
Photo 11 : Disc brake, removed.
Photo 12 et 13 : Removing the cover of the brake disc
 
     
Photo 14 et 15 : you can see the stub axle and removal hassle-free
 
     
Photo 16 : Cardan and half drive shaft in its housing
Photo 17 : The axle shaft and the cardan have been removed
Photo 18 : You can see the entire axle shaft
 
     
Photo 19 : A universal joint (cardan) had to be open to the grinder, you can see inside
Photo 20 : Michi put grease in cardan
Photo 21 : We can see all the parts that were changed: the cardan, with on the top, the hub body detachable Aisin. On the table, the cover with the control part of the hub.
 
     
Photo 22 : We see inside the body of the hub, more information on these hubs including protections against theft : zigzagcruiser
Photo 23 : You can see the Aisin hub disengaged back on the foredeck.
I hope that this text and these images will enable those who use the hubs to know them a little better.
We take advantage that Woki was on the ramp to switch and re-balancing of the wheels. Since the purchase of Woki, and installation of alloy rims and BF Goodrich All Terrain tires, balancing was not correct. I always vibrations in the steering wheel on the highway at 90-100km / h. As we had neglected it during our 32 000km in Central Asia, this created a bad wear in the set of tyres front. Now it's a real pleasure to ride.
 
     
My Viair air compressor purchased in 2009 at Desert-Tec is now installed near the engine. It is connected to a compressed air supply stainless steel, installed in the engine compartment. Two outputs, with quick link, are placed at right and left engine cover, on which we can branch a flexible coiled, after which you can put either a blower or a air pump (see picture below). And yes, we could have used a blower to remove pollen that accumulated on the radiator in Siberia and to clean the air filter or other ...
 
     
Patricia is in the kitchen of Desert-Tec to work on the report on Allrad. I take advantage of the ramp to make a small change in the drain water.
 
     
Other changes include the kitchen tap. We had a tap with shower head that we were not used during our seven months of travel. tap a simpler but with the switch replaced. Finally a faucet water discharge on the second water tank, to drain if necessary.
 
 
You can see on the yellow Toyota, the technique used in the realization of the roof. In the parking, the new development and making, with a highly successful, on Toyota 80 (photo below).