Long post here, can anyone shed any light?

Has anyone had any problems with the 2004 EPA compliant Hyster or Yale trucks running the closed loop Mazda fuel system?

A customer of mine was unfortunate enough to purchase 5 of these trucks. I say unfortunate now because of the problems they are having. These trucks have a fuel injector that appears to run both the startup and idle circuits. (it uses a conventional mixer for the power circuit) This injector has a small aluminum cannister type fuel filter downstream form the Aisian LP regulator to keep contaminants out of the injector. This filter has been plugging up on all 5 trucks. The Regulators are fullof the oil that is put into all propane fuel (at least here in the US) to give its characteristic odor. This oil plugs the filter and the truck will not start very well and if it does start, idles poorly.

The local yale dealer hasnt been very helpful. They are convinced its the customers fuel storage system containing too much oil. I do tend to agree, but I have help the customer do some testing to lead us in this direction, while the local Yale dealer just assumes its the fuel.

Yale claimed that they cannot sell the element for the fuel filter, and tries to sell the customer a nearly $300 USD filter assy. Well after buying 5 of them, the trucks will only run 3-4 days at best. Finally, they have tried soaking the elements in thinner and can get the truck to run for 3-4 days that way as well. The dealer finally agreed to sell a filter element, but they are an aftermarket part and are a 5 micron filter, where the oem yale piece was 20 microns. Well, obviously that doesnt work out very well.

I talked to a Hyster factory service rep (yale hyster, same truck)and he agreed that the problem is most likely fuel, and gave us a few options to try, but none have worked, such as an extra canister type filter up stream from the regulator and a solenoid to drain the tar/oil from the regulator automatically, neither has helped.

Clearly there are other people who have run into the same type of problem as the Hyster rep admitted. We have the right fuel as spec'ed by the manufacturer. Short of a $30,000 storage tank revamp, has anyone had any luck with any changes to correct this problem?

Has anyone had this problem with any other brand of lift trucks with 2004 and up, epa compliant engines?

Anyone know if the revamped Yale trucks (2005 model year) have this same fuel filter? Is this fuel problem any reason for the delay in Yale delivering their new model of trucks??

Thanks to forkliftaction for the forum, and thanks in advance for your replies.

Doc.