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my oilpump exloded

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    #1

    my oilpump exloded

    well i was at the dragstrip
    doing a 20psi pass.
    topend of 4th gear, i'm doing 120mph 7200rpm and havent went through the traps yet. definaly an 11 second run... oil light came on, and oil pressure gauge
    went to 0. I hit the brakes and shut it down... coasting through the traps at a 13.1 at 98mph...
    I didnt take it apart yet, but i'm pretty sure the oilpump broke. was on 7k on it...
    i ordered a prodrive H22a oilpump gear.
    I think this happed due to me using a aluminum crank pulley.... i'm putting an OEM one on for now...

    So moral of the story is the aluminum crank pulleys really do destroy oilpumps...
    12.5 at 114.6mph 15psi
    11.7 and 11.5 20.5psi
    F22a1
    60-1 td06h turbo
    Darton mid sleeves
    85.5 wiseco 8.8:1 forged pistons
    Crower pro billet rods
    Custom ported head.
    KMS valves
    F23 headgasket
    ARP H23 headstuds
    H23 upper intake manifold
    F22a6 lower intake manifold
    Intake manifold is gutted
    AEM EMS 1040u
    FIC 850cc injectors
    Walbro 255 pump
    H23 manual trans
    Prelude shifter assembly
    Forbidden short throw
    Nitrous Express Kit installed, never used on this motor
    Tags: None
    #2
    thanks for the heads up i didnt know that aluminum crank pulleys will mess up the oil pump

    Comment

      #3
      0 oil pressure means the oilpump is broken, or the pump pickup came off. The pump is shattered. I'll have pics tomorrow. If you read around honda-tech you will hear that every person who used the honda N1 racing pulley had an oilpump break. A few people had the exact same twice or 3 times, still using the pulley.
      I'm going back to OEM for now, but ATI, i think, aftermarket balancer is in my eyes...
      12.5 at 114.6mph 15psi
      11.7 and 11.5 20.5psi
      F22a1
      60-1 td06h turbo
      Darton mid sleeves
      85.5 wiseco 8.8:1 forged pistons
      Crower pro billet rods
      Custom ported head.
      KMS valves
      F23 headgasket
      ARP H23 headstuds
      H23 upper intake manifold
      F22a6 lower intake manifold
      Intake manifold is gutted
      AEM EMS 1040u
      FIC 850cc injectors
      Walbro 255 pump
      H23 manual trans
      Prelude shifter assembly
      Forbidden short throw
      Nitrous Express Kit installed, never used on this motor

      Comment

        #4
        Well, Im not going to say that the unorthodox pullies are to blame.. but the oil pump was on its way out in my h22. Coincidence or not, the pullies had been on there for a year or two.

        Comment

          #5
          And yet people really think that all these storys are "urban legends".

          Comment

            #6
            i didnt take the pump out yet, thats for tomorrow... but i did take off the t-belt assembly.
            Guess what i noticed.

            I think because the crank pulley was aluminum, it had a tendency to deform, and flex around. When i took it off a few things didnt look right, which were ok when i put this motor together.

            The crank key was physically twisted.

            On the crank there is a shim, then the cam pulley, then the balancer shaft pulley, then the harmonic balancer
            It appears to me due to the aluminum crankpulley flexing around there was very large rough looking wear spots on the crank tbelt pulley and balancer shaft belt pulley where they sit toegther. If you sit them on each other it is very obvious they can rock back. They are no longer sitting correctly and are trash. I need to get new ones and a new keyway, and i have an OEM balancer i'm putting on.

            Tomorrow i need to drop the oilpan to take off the pickup... and take off the oilpump...
            12.5 at 114.6mph 15psi
            11.7 and 11.5 20.5psi
            F22a1
            60-1 td06h turbo
            Darton mid sleeves
            85.5 wiseco 8.8:1 forged pistons
            Crower pro billet rods
            Custom ported head.
            KMS valves
            F23 headgasket
            ARP H23 headstuds
            H23 upper intake manifold
            F22a6 lower intake manifold
            Intake manifold is gutted
            AEM EMS 1040u
            FIC 850cc injectors
            Walbro 255 pump
            H23 manual trans
            Prelude shifter assembly
            Forbidden short throw
            Nitrous Express Kit installed, never used on this motor

            Comment

              #7
              oouuucchhhh bro... that really blowzz ass.... i'm guessin you tow your car to the strip then? i can see how if the crank pulley is a smaller diameter and spins all the components at a higher speed than they are meant for in stock trim, much less at 7200rpm when theyre made for maxx of 6800ish, how it can destroy any one of those components... lightwieght is great and it improves certain aspects of things, but if its not as strong and reliable as the stock counterpart, then whats the point? if it was like titanium or something and completely stock specs, then theres a poiint to it cause its even more reliable than the stock cold rolled steel, but aluminium on vital parts of the engine doesnt seem too smart imo.. esp if you said you already read that ppl in other forums blew thier oil pumps with one.....

              Comment

                #8
                Originally posted by ChroNicBoosT
                but aluminium on vital parts of the engine doesnt seem too smart imo.. esp if you said you already read that ppl in other forums blew thier oil pumps with one.....
                Other than the fact that most newer engines/blocks ARE aluminum. Its not what its made of in this case, its how well it was engineered.

                Im swapping out my UR one for a stocker so I dont have to do another oil pump replacement down the road.

                Comment

                  #9
                  If your running an aftermarket aluminum pulley, it will most likely shatter your oilpump in the near future. Honda crank pulleys contain the polyurthane surrounding in them to dampend harmonic vibration. Of course the N1 pulley doesn't contain that bushing which leads to peeps having problems with ther oil pump as well. My buddy ended slapping on his UR crank pulley on his built teg motor after I installed the prodrive oil pump gear and it ended up shattering as well.
                  Carlos
                  My Members Ride Page

                  Comment

                    #10
                    LOL hes tried so hard and come so far in the end it doesnt even matter

                    Comment

                      #11
                      Originally posted by h22sparkle
                      LOL hes tried so hard and come so far in the end it doesnt even matter
                      I dont understand why EVERYTHING you say on this forum has to be negative or putting somebody down. If you dont have something nice to say, bite your tongue and go elsewhere.

                      Comment

                        #12
                        i deffffff wouldnt say everything... sparkle is madd chill... hes actually a damn cool guy if u talk 2 him, and hes not really bein negative, its more like simply quoting a linkin park song... lol... but 4 real sparkle deff hooked me up w/ sum wikkid info and hes a very knowledgable frendly guy... if he was tryin to be disrespectful with that comment i think he woulda phrased it much diffrently...

                        Comment

                          #13
                          Originally posted by ChroNicBoosT
                          i deffffff wouldnt say everything... sparkle is madd chill... hes actually a damn cool guy if u talk 2 him, and hes not really bein negative, its more like simply quoting a linkin park song... lol... but 4 real sparkle deff hooked me up w/ sum wikkid info and hes a very knowledgable frendly guy... if he was tryin to be disrespectful with that comment i think he woulda phrased it much diffrently...
                          I understand that he knows quite a bit, but I dont think I have read very many posts where he actually puts the knowledge to use. He usually makes comments like "guess you shouldnt have gone turbo", "you wish you were as fast as me" etc, not sure if he's still in High School, but thats what it sounds like. If you arent going to help.. dont post.

                          Comment

                            #14
                            I'm sure it is possible that the pulley contributed to this problem. I don't see how you could make 3-4 times the stock horsepower an engine is designed to put out and expect a stock oil pump to hold up to those demands though. I know the pulleys aren't as strong as stock, but even if they were you couldn't seriously expect a stock oil pump to hold up for very long. Not a bright idea to fully build an engine then leave out something vital like that...

                            Comment

                              #15
                              Originally posted by Fearit22
                              I'm sure it is possible that the pulley contributed to this problem. I don't see how you could make 3-4 times the stock horsepower an engine is designed to put out and expect a stock oil pump to hold up to those demands though. I know the pulleys aren't as strong as stock, but even if they were you couldn't seriously expect a stock oil pump to hold up for very long. Not a bright idea to fully build an engine then leave out something vital like that...
                              The only problem is that nobody offers upgraded ones for the h22. Go figure that they make them for f22, but not the h. The only thing that is offered is an upgraded gear, and some other custom mods that you can do with a washer or two.

                              Comment

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