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Predator Motorsports Blog

Rescue Mission Holiday Run Update

Had a great time on the Rescue Mission Charity Run organized by Mike at Tustin Hummer.

We started the day off early at 6 am at Predator and left with a convoy of about 6 hummers heading up north to Tustin Hummer.  Around 7-7:30 am we noticed an H1 pulling a trailer on Interstate 5 North Bound. As we got closer we noticed it was one of our good friends heading up to Tustin. We promply pulled in front of him and he joined our convoy north. When we got there, we were meeted by a bunch of our old friends. We hung out for about an hour while the line of Hummers got longer and longer. At 9am we loaded up to head over to the Orange County Mission. We left with 30-40 hummers and a police escort by the Tustin PD.

Once we got to the mission, everyone unloaded their vehicles with thousands of dollars worth of essential supplies needed by the Mission as well as a large assortment of presents for the kids and parents to pick out for their families.

It was overwhelming to once again see the generosity of the Hummer community and was truly an honor to such a great and worth while cause. HUGE thanks go out to Mike for putting on such a great event.

Looking forward to next year!

See pictures of the event here:

For the origional event details click here:

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H1 Overheating Issues

We get phone calls daily and several vehicles in each week in regards to H1 Hummers and overheating. One of the most common causes of your Hummer running warm and in some cases overheating is because of a clogged cooling stack. The unique 45 degree angle of the cooling stack allows for a debris to collect between the A/C Condenser and the Radiator. A quick inspection may not reveal whats buried on top of your radiator. The technician must be diligent and thorough with the inspection. It is best to unbolt the condenser from the cooling stack and carefully lift out of the way. Be extremely careful as A/C condenser is under pressure and can be harmful to both the technician and the environment if a line is cracked and refrigerant is lost.

If a clogged radiator is found, the top half of the cooling stack must be carefully removed so that full access can be obtained to the radiator. This can be done without disconnecting your coolers but again, care must be taken.

Once you have throughly cleaned your cooling stack, you should see a noticeable difference right away.

Hummer H1 Clogged Radiator

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Hummer Differential Field Repair

One of the most over looked areas of off roading is field repairs. What happens if you are 30 miles away from civilization as we were yesterday at our off road facility in the California desert and the front differential detonated? Obviously you always want to travel with a buddy vehicle for safety and support. Even with a buddy vehicle it is extremely important to be able to perform a field repair if necessary.

We were traversing a remote location of our off road training grounds when a spotter noticed the front diff leaking oil. Fortunately we noticed it right when it happened and the impact on the environment was non existent as all lost fluid was recovered.

In this situation a spider gear snapped off two teeth inside the diff and was lodged between the ring gear and the diff cover resulting in a punctured diff cover.

This required a visual inspection as we weren’t sure what was going on inside. We began by removing the Under Carriage Protection, and then loosening the brake caliper to gain access to all the bolts on the diff cover. We were short a few tools including the drain plug Allen so we had to crack the cover open slightly to contain the spill into a water jug that was cut open. After removal of the cover, we found the cause and determined that we were very fortunate that the teeth were on opposite spider gears! This meant that they would not skip causing complete failure.

The next step was to clean up the diff and repair the hole. A quick repair was made with JB Weld.

Getting the oil in was a little tricky because of the lack of a funnel and even worse, access to the fill hole because we did not have an Allan wrench big enough. We improvised using several Plastic Zip-Lock bags from out lunches filled with the recovered oil. After filling the bags, we sealed them and carefully placed inside the diff. This allowed us to reinstall the cover without oil loss. Once we began moving, the gears would tear apart the bags releasing the gear oil into the diff.

After getting the diff cover back on, we reinstalled the caliper and were off to civilization.

All in all, we were very lucky we didn’t have to leave the Hummer. The total repair took about 4 hours working with minimal tools and improvising with the tools on hand.

The lesson learned is to rereview your tools and supplies. Bounce your list of tools off a few Hummer friends and see if they have any additional items or fluids you have overlooked.

You can never be too prepared!

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