Anyone else get excessive gear/ pump noise from a Gen3 type set-up? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 35 (permalink) Old 01-13-2010, 04:37 PM Thread Starter
Junior Mint
 
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Anyone else get excessive gear/ pump noise from a Gen3 type set-up?

This is a homemade Gen3 set up I built a few years ago similiar but not exactly the same as a Swamp's Gen3 set up.

I seem to have excessive pumping noises or possibly gear noises coming from the front cover. I disassembled the pump and found it in excellent internal shape although the seal was quite hard. The gears look to have no real wear either.

Does anyone have any suggestions or ideas on what is causing this excessive noise and how to quiet it down? It's really annoying!

Or is it just the nature of these sort of pumps?

Thanks.

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post #2 of 35 (permalink) Old 01-13-2010, 05:36 PM
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Re: Anyone else get excessive gear/ pump noise from a Gen3 type set-up?

What kind of noise? Is this just at start up or all the time?
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post #3 of 35 (permalink) Old 01-13-2010, 06:02 PM Thread Starter
Junior Mint
 
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Re: Anyone else get excessive gear/ pump noise from a Gen3 type set-up?

It's sort of a gear whine or even a pumping noise most prominent at cruising speeds coming right from the front of the engine. It almost sounds like when you pour out a soda to quickly - "plop. plop, gulp, gulp" with a little whurring noise thrown in for good measure. Like an oil pumping noise.

It's weird because it does not make the noise at idle or even if I rev it up. It seems to only happen while under a load.

It's not chassis noise because if I put the truck into neutral while going down the road, it goes silent.

I was hoping it was the result of an oil leak around my seal on the gear pump but correcting that problem helped the truck start quicker for sure but made no difference at all in this noise.

It's really annoying and if it wasn't for this noise it would be a smooth sounding and quiet rig.

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post #4 of 35 (permalink) Old 01-13-2010, 06:05 PM
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Re: Anyone else get excessive gear/ pump noise from a Gen3 type set-up?

Does your ICP fluctuate at all during this?
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post #5 of 35 (permalink) Old 01-13-2010, 06:22 PM Thread Starter
Junior Mint
 
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Re: Anyone else get excessive gear/ pump noise from a Gen3 type set-up?

I have a dual ICP set up and it's a great point you bring up but I no longer have Auto-E so I really have no way to test it.

What are you suggesting exactly? That wild ICP swings are creating alternate loads on the pump creating the noise?

The noise definitely has a rythm to it. Almost in time w/ the motor but slower.

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post #6 of 35 (permalink) Old 01-13-2010, 06:51 PM
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Re: Anyone else get excessive gear/ pump noise from a Gen3 type set-up?

are you positive its the pump making the noise? you have a 42r correct?

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post #7 of 35 (permalink) Old 01-13-2010, 08:57 PM Thread Starter
Junior Mint
 
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Re: Anyone else get excessive gear/ pump noise from a Gen3 type set-up?

Yes but my 42R is definitely good.

I'm pretty positive it's the pump but the only way to know for sure is to remove it, block off all of the oil lines and run the truck like that.

Thanks for your assistance on this guys.

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post #8 of 35 (permalink) Old 01-13-2010, 10:35 PM
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Re: Anyone else get excessive gear/ pump noise from a Gen3 type set-up?

actually im not saying the turbo may be bad or not. A few of the garrett bb turbos have a whine sound to them due to the tolerances of the bearing cartrige and the balancing method used. just throwing it out there. otherwise is there a way to check backlash on your setup pump gear?

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post #9 of 35 (permalink) Old 01-13-2010, 11:26 PM
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Re: Anyone else get excessive gear/ pump noise from a Gen3 type set-up?

Quote:
Originally Posted by Suns_PSD View Post
I have a dual ICP set up and it's a great point you bring up but I no longer have Auto-E so I really have no way to test it.

What are you suggesting exactly? That wild ICP swings are creating alternate loads on the pump creating the noise?

The noise definitely has a rythm to it. Almost in time w/ the motor but slower.

No, don't really have any idea, just figured if a pump issue was there you may see ICP fluctuate... ??
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post #10 of 35 (permalink) Old 01-14-2010, 01:02 AM
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Re: Anyone else get excessive gear/ pump noise from a Gen3 type set-up?

have you checked the back lash on the drive gears?
the top pump on my bts setup is made so you can adjust the lash, and being to tight would definatly cause a wine.

Ross
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