: Hydroboost system installed, can't bleed??
rednecks70 Jul 14th, 09, 9:32 AM I bought the system from Hydratech and followed their instructions but I can't get the air out of the system. When turning the wheel from lock to lock I can hear the air moving through the fluid but rarely see any bubbles coming up through the pump resivoir, in fact I can watch the level go up and down as the wheel is being turned. When I start the car their is a slight whine from the pump but no foam and pump gets smoking hot. Also the pedal goes to the floor and stays there until I get my foot under it and lift it back up. I filled the system with power steering fluid I purchased at Napa that said it was compatible with GM fluid but it is a different color (not red). Any help would be greatly appreciated.
novaderrik Jul 14th, 09, 4:31 PM have you called Hydratech and asked them what they think?
rednecks70 Jul 14th, 09, 4:37 PM have you called Hydratech and asked them what they think?
Yes and I got a recording that says their not dealing with the public anymore.
novaderrik Jul 14th, 09, 6:35 PM nice.. good to see that customer service is still a priority.
vrooom3440 Jul 14th, 09, 6:50 PM The pump should not get that hot...
Check that you have the lines connected up correctly.
Check that you get fluid pumped from the return line. There should be 2-3 GPM pumped through the system at all times. Which means you will need the return line pointed into the steering reservoir during the test or you will A) make a big mess and B) pump the system dry very quickly.
cwilks Jul 14th, 09, 6:58 PM Yes and I got a recording that says their not dealing with the public anymore.
they'd be dealing with "this" public.....thats total BS :yes:
novaderrik Jul 14th, 09, 7:08 PM they don't have a phone number or email address on their contact page- but i did find this:
http://hydratechbraking.com/Hydratech/tech.html
it's kind of stupid that they don't have a phone number- but i've also heard of a lot of people having a lot of problems getting hydraboost setups properly functioning, so maybe they just decided that they didn't want to deal with the general public and shuttle that off to their dealer network. that is kind of a crappy thing to do- especially for the people that bought their systems directly from them maybe years ago that are just now getting their cars running..
rednecks70 Jul 14th, 09, 9:32 PM I'm not sure what they expect me to do since I didn't buy it from one of their dealers. I'll make sure the fluid is cycling and then try to bleed it again. I'm amazed that their isn't an easier way to bleed the system, no valve to open?
rednecks70 Jul 14th, 09, 10:19 PM The pump should not get that hot...
Check that you have the lines connected up correctly.
Check that you get fluid pumped from the return line. There should be 2-3 GPM pumped through the system at all times. Which means you will need the return line pointed into the steering reservoir during the test or you will A) make a big mess and B) pump the system dry very quickly.
I think you hit on something. I tried testing just like you said and freakin nothing comes out, no wonder the pump got hot. I'm just glad that I only ran it for a minute and hopefully didn't do any damage. Anyway I know I have the lines routed correctly at the hydroboost unit but maybe I have them wrong at the steering unit? When I stand at the front of the car the port on the right (drivers side) is the low pressure return line to the pump and the one on the left (passenger side) is the high pressure line that use to connect to the pump but is now the high pressure return from the hydroboost. I'll post a pic.
cobaltchev67 Jul 14th, 09, 11:18 PM Steering unit line routing looks correct. You say you have the lines at the hydroboost on correctly, but just to make sure..... which one is which on your application? Since the hydroboost has an impeller, I'm curious if there's a one-way valve in there also which would prevent all fluid from passing through it the wrong way.
In this article, it shows the inlet fitting nearest the accumulator can, and the outlet fitting near the return line fitting:
http://www.angryamerica.com/chevelles/hydroboost.html
This is how I mounted my hydroboost unit and routed my high pressure lines with the longer line-set. Not my article or information but a very good write-up for you if you have any questions.
rednecks70 Jul 15th, 09, 12:13 AM Steering unit line routing looks correct. You say you have the lines at the hydroboost on correctly, but just to make sure..... which one is which on your application? Since the hydroboost has an impeller, I'm curious if there's a one-way valve in there also which would prevent all fluid from passing through it the wrong way.
In this article, it shows the inlet fitting nearest the accumulator can, and the outlet fitting near the return line fitting:
http://www.angryamerica.com/chevelles/hydroboost.html
This is how I mounted my hydroboost unit and routed my high pressure lines with the longer line-set. Not my article or information but a very good write-up for you if you have any questions.
I have the line coming from the drivers side (closest to the accumulator) connecting to the pump. Then the line from the passenger side (near the low pressure return) connects to the steering unit. Here's another thought, I had the pump housing modified for a second return line and I'm wondering if I screwed something up when reassembling the pump and housing? There was a spring and another piece that had to go into the pump prior to the fitting that goes into the back.
cobaltchev67 Jul 15th, 09, 4:59 AM Yeah, it's possible something is backwards/wrong in there and nothing is getting through....but in your first post you said you could see the fluid level going up and down. I'd say you need to check if any fluid is getting out of the pump, then if it's getting out of the hydroboost. Start at square one before tearing stuff apart.
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