Chevy/GMC 6.2L and 6.5L Discussion of Chevy and GMC Trucks with 6.2L and 6.5L Diesel Engines

Vacum Pump/Wastegate Actuator

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Old Feb 14, 2011 | 04:51 PM
  #11  
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I will have to get a EGT gauge then before i build it. I have everything but that then. What temp should the exhaust run. I dont tow anything. Well every once in a while
 
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Old Feb 15, 2011 | 12:01 PM
  #12  
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If you just want to test your wastegate actuator you could check with an automotive air conditioning repair shop which has vacuum pumps that could pull a vac on your solonoid without removing it from the engine. Check the yellow pages.
 
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Old Feb 15, 2011 | 12:11 PM
  #13  
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or you can run vacuum line right from the from vacuum pump to the wastgate
 
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Old Feb 15, 2011 | 02:41 PM
  #14  
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I cant run a line from the pump to the waistgate because i dont have enough vacum. At idle i m only getting 7 inch pounds at start up and about 3 when it warms up and thats right at the pump i didnt test any where farther then taht because if i m not getting it at the pump i wont be getting it past the sol. I think i m going to build the new spring waist gate. I researched it last night and alot of people went to this and from what i read they all loved it. I m going to leave then pump in until i get a shorter belt ordered.I found i can order a shorter one from heath. I think it will be a nice up grade and i should have to worry about the sol or pump or lines ever again I HOPE.
 
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Old Feb 15, 2011 | 03:22 PM
  #15  
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the belt is only 1" shorter after removed vacuum i just go you parts store get belt
 
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Old Feb 15, 2011 | 05:53 PM
  #16  
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Ok i did the mod. i think i might need a lighter spring or a longer rod. THe longest rod i could find was 8 and 7/8ths. So i dont know if it has the spring compressed to much or to hevy of a spring. Tomorrow i m making a longer rod. At about 2000rpms it runs about 7'LBS. when i stomp on it ant it goes over 2000rpms it jumps up to about 11 or 12 LBS. I was told not to ever run it over 15 And 12 is a little to close for me. I didnt do it for the extra power i did it to get my turbo to work. Now that it s working i hope my MPG will go up alittle bit
 
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Old Feb 15, 2011 | 09:31 PM
  #17  
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if you start off with your foot to the floor and it only going 12psi the drop off you doing ok i know mine running about 3or 4 psi at 55mph i will try check the rpms tomorrow for you
 
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Old Feb 16, 2011 | 06:15 AM
  #18  
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OK good to know then i was worried about it. Sounds like mine in set up like yours i get between 3 and 5 at 55mph and when i start off stomping it to the floor iut peaks at 12.
 
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Old Feb 16, 2011 | 08:02 AM
  #19  
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sound like you got it set right
 
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Old Feb 16, 2011 | 08:20 AM
  #20  
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What is this going to do for my MPG. Will get get worst now or will it go up from the turbo working and the motor not having to so hard.
 
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