DooWacka
Active Member
It seems that as the Seadoo Direct Injection (DI) units are aging, we see more problems with the fuel pump.
The DI watercraft series are truly amazing performers when they are running properly!!
So, this post is to poke the “grey beards” or just “folks who know” to gain knowledge about alternatives to paying Bombardier about $700-$800 for a new fuel pump module.
I have four 2001 GTX DI watercraft, and two have this problem. I have built a Seadoo type fuel pressure tester, so can do all the tests they describe in the manual. The two pumps that have gone out where intermittent as many have described, where it runs for awhile then dies, then maybe restarts after awhile, to run well until t he next failure after varying lengths of time. To diagnose this intermittent failure it helps to have the gauge installed while riding, so you can observe the fuel pressure drop before it sputters or completely dies.
I replaced one DI pump with the Walbro GSS-342, and used very slight modifications allowing the same pump “mounting” and “sliding seal” so the fuel sender module springs compress the same. This unit has been working fine, so I did the same fuel pump replacement to the second DI, which operates fine, but uses more current to run the pump so the battery won’t charge.
Apparently, I got lucky with the first pump replacement since it draws “only” about 12 amps current (12A) instead of 14.5A for the non-charging DI. Since the Rectifier/Regulator can only put out about 18-20A at higher rpm, the fuel pump is using 14.5A, the rest of the electronics (MPEM, injectors, etc.) uses most of the rest, with the leftover current available to charge the battery.
In my “working” unit, since the pump only draws 12A, the battery seems to be charging with 1 to 2A, which isn’t much but it works. The other unit draws 14.5A, so the battery actually discharges, to help with the system power requirements, which leads to MAINT, beeping, and eventually sputtering and shut-down.
Testing on the DI units that still have the OE fuel pump reveal:
The fuel pump draws only 2A to charge the rail to 27psi upon placing the DESS key on the post.
The pump draws about 4A when running at 107psi pump pressure, and up to about 5A at higher rpms.
The battery is charging at about a 4A rate.
The measured system current draw from the Rec/Reg is only 7-10A, depending on rpm.
(The Rec/Reg current will definitely vary depending upon the battery state of charge and the system demands.)
My feeling is that even if I get lucky and purchase another pump that only uses 12A, the load on the Rec/Reg would probably cause regular failures and Rec/Reg replacements.
The reason I chose the GSS-342 as a replacement fuel pump was the published info from TIAutomotive.com (Walbro’s performance pump group) which indicated it can do the pressures needed in the DI Seadoos.
I declined to look further at the HighFlowFuel.com HFP-342 pump, since they didn’t list pressures high enough in their testing.
However, now I understand the HFP-342 is being recommended as a replacement pump on this forum.
So, apparently the pressure is high enough, but the current draw is listed as basically the same as the GSS-342, drawing 14A+ at 107psi.
My Questions:
Who has actually installed the HFP-342 on a DI, and are running successfully?
Has anyone measured the current drawn by the fuel pump, and at what rate are they charging the battery?
How much current is drawn from the Rectifier/Regulator, and have they had to replace it very often?
Or, have you had to replace the stator?
The OE fuel pump from my 2001 GTX DI has E1067 stamped on the side. I’ve spoken with Bosch and they say it is not a Bosch pump. It is an Airtex pump. I’ve spoken with Airtex technical support. The E1067 part number is apparently a Bombardier number, and the Airtex number for this pump is E11002. http://173.14.177.149/autopartimages/AIR/E11002-1.jpg Airtex no longer makes this pump. According to the technical contact, who was looking at the blueprint, Airtex apparently designed this high pressure yet low current pump for Bombardier and apparently Bombardier owns the patent. According to him, this “efficient” pump design probably uses a different (greater?) number of armature windings, and possibly more powerful magnets to get the performance. Normal automotive uses don’t require the low power and high pressure, so they don’t use that design elsewhere. Airtex makes a large number of pumps that look very similar to the DI Seadoo pump, with the same gold color and outlet port, yet none work at 107psi only drawing 4A. The tech rep said any of their pumps that go to 107psi will draw at least 14A. That means the Airtex E8446, E8248, and E8228 all would work but all draw at least 14A+. The jetworks in the UK (thejetworks.co.uk) is the only place I see online that MIGHT have an OE pump, according to their picture. http://www.thejetworks.co.uk/shop/jetworks-direct-injection-series-in-tank-fuel-pump-p-295.html?osCsid=b05c0d0dec242fad3aebbabfda948f63 However, they only say a “replacement” and emails I’ve sent asking more about the pumps and if it is OE, have all gone un-answered. So, I can only assume they are charging a pricey $417 plus shipping for a non OE pump and kit that could have the same potential problems.
My Further Questions:
Has anyone seen the fuel pump in the NEW $700 Seadoo replacement fuel module (275500641)?
Since Seadoo no longer makes the DI, but still sells replacement fuel pump modules, who is making the pump for them?
If the NEW pump is the same E1067, then are they working from their inventory only?
I am sure there are many of us that are very interested in answers to these questions, and we look forward to your responses.
THANKS!!
The DI watercraft series are truly amazing performers when they are running properly!!
So, this post is to poke the “grey beards” or just “folks who know” to gain knowledge about alternatives to paying Bombardier about $700-$800 for a new fuel pump module.
I have four 2001 GTX DI watercraft, and two have this problem. I have built a Seadoo type fuel pressure tester, so can do all the tests they describe in the manual. The two pumps that have gone out where intermittent as many have described, where it runs for awhile then dies, then maybe restarts after awhile, to run well until t he next failure after varying lengths of time. To diagnose this intermittent failure it helps to have the gauge installed while riding, so you can observe the fuel pressure drop before it sputters or completely dies.
I replaced one DI pump with the Walbro GSS-342, and used very slight modifications allowing the same pump “mounting” and “sliding seal” so the fuel sender module springs compress the same. This unit has been working fine, so I did the same fuel pump replacement to the second DI, which operates fine, but uses more current to run the pump so the battery won’t charge.
Apparently, I got lucky with the first pump replacement since it draws “only” about 12 amps current (12A) instead of 14.5A for the non-charging DI. Since the Rectifier/Regulator can only put out about 18-20A at higher rpm, the fuel pump is using 14.5A, the rest of the electronics (MPEM, injectors, etc.) uses most of the rest, with the leftover current available to charge the battery.
In my “working” unit, since the pump only draws 12A, the battery seems to be charging with 1 to 2A, which isn’t much but it works. The other unit draws 14.5A, so the battery actually discharges, to help with the system power requirements, which leads to MAINT, beeping, and eventually sputtering and shut-down.
Testing on the DI units that still have the OE fuel pump reveal:
The fuel pump draws only 2A to charge the rail to 27psi upon placing the DESS key on the post.
The pump draws about 4A when running at 107psi pump pressure, and up to about 5A at higher rpms.
The battery is charging at about a 4A rate.
The measured system current draw from the Rec/Reg is only 7-10A, depending on rpm.
(The Rec/Reg current will definitely vary depending upon the battery state of charge and the system demands.)
My feeling is that even if I get lucky and purchase another pump that only uses 12A, the load on the Rec/Reg would probably cause regular failures and Rec/Reg replacements.
The reason I chose the GSS-342 as a replacement fuel pump was the published info from TIAutomotive.com (Walbro’s performance pump group) which indicated it can do the pressures needed in the DI Seadoos.
I declined to look further at the HighFlowFuel.com HFP-342 pump, since they didn’t list pressures high enough in their testing.
However, now I understand the HFP-342 is being recommended as a replacement pump on this forum.
So, apparently the pressure is high enough, but the current draw is listed as basically the same as the GSS-342, drawing 14A+ at 107psi.
My Questions:
Who has actually installed the HFP-342 on a DI, and are running successfully?
Has anyone measured the current drawn by the fuel pump, and at what rate are they charging the battery?
How much current is drawn from the Rectifier/Regulator, and have they had to replace it very often?
Or, have you had to replace the stator?
The OE fuel pump from my 2001 GTX DI has E1067 stamped on the side. I’ve spoken with Bosch and they say it is not a Bosch pump. It is an Airtex pump. I’ve spoken with Airtex technical support. The E1067 part number is apparently a Bombardier number, and the Airtex number for this pump is E11002. http://173.14.177.149/autopartimages/AIR/E11002-1.jpg Airtex no longer makes this pump. According to the technical contact, who was looking at the blueprint, Airtex apparently designed this high pressure yet low current pump for Bombardier and apparently Bombardier owns the patent. According to him, this “efficient” pump design probably uses a different (greater?) number of armature windings, and possibly more powerful magnets to get the performance. Normal automotive uses don’t require the low power and high pressure, so they don’t use that design elsewhere. Airtex makes a large number of pumps that look very similar to the DI Seadoo pump, with the same gold color and outlet port, yet none work at 107psi only drawing 4A. The tech rep said any of their pumps that go to 107psi will draw at least 14A. That means the Airtex E8446, E8248, and E8228 all would work but all draw at least 14A+. The jetworks in the UK (thejetworks.co.uk) is the only place I see online that MIGHT have an OE pump, according to their picture. http://www.thejetworks.co.uk/shop/jetworks-direct-injection-series-in-tank-fuel-pump-p-295.html?osCsid=b05c0d0dec242fad3aebbabfda948f63 However, they only say a “replacement” and emails I’ve sent asking more about the pumps and if it is OE, have all gone un-answered. So, I can only assume they are charging a pricey $417 plus shipping for a non OE pump and kit that could have the same potential problems.
My Further Questions:
Has anyone seen the fuel pump in the NEW $700 Seadoo replacement fuel module (275500641)?
Since Seadoo no longer makes the DI, but still sells replacement fuel pump modules, who is making the pump for them?
If the NEW pump is the same E1067, then are they working from their inventory only?
I am sure there are many of us that are very interested in answers to these questions, and we look forward to your responses.
THANKS!!
