oil pump walked in housing - Page 2

DG Motors · Jul 10, 2009, 03:42 PM

Quote:

Originally Posted by TTP Engineering

549.9457whp and 486.947391tq

just round those numbers up

wevo1985 · Jul 10, 2009, 03:51 PM

well, at the price of the kit for the ams balence eliminator. ill give the stub another chance. with a new housing im sure ill be ok. i know not everyone uses and ams kit and its 300 with no core. if it happens again ill try the ams one.

Steve93Talon · Jul 10, 2009, 04:13 PM

Quote:

Originally Posted by TTP Engineering

So you used a stub shaft and you want to know why it ate through the case?

Because you used a stub shaft, period.

Oh really? I'll be sure to tell all the DSMers who have been running stub shafts for well over a decade without any issues, including myself on every single engine I've ever had up to the EVO.

thebluesky · Jul 10, 2009, 04:27 PM

Quote:

Originally Posted by TTP Engineering

So you used a stub shaft and you want to know why it ate through the case?

Because you used a stub shaft, period.

BS!!

DSMers have been using the stub shaft FOREVER. The only time it would be of concern is on a high rpm engine.

wevo1985 · Jul 10, 2009, 05:06 PM

do they make anything different than the stub shaft for the 1st and 2nd gens? i dont think they do.

TTP Engineering · Jul 10, 2009, 08:14 PM

So you walked the stubshaft and joined the club of tens of others who have done the same thing, come to the forum to ask for advice, only to put a stubshaft back in. Maybe next time you'll get some of that metal in your engine bearings, oil cooler and lifters costing you thousands of dollars before you just fix the real issue.

I swear I don't understand some people.

These are not DSMs.

TTP Engineering · Jul 10, 2009, 08:16 PM

Quote:

Originally Posted by Steve93Talon

Oh really? I'll be sure to tell all the DSMers who have been running stub shafts for well over a decade without any issues, including myself on every single engine I've ever had up to the EVO.

Maybe you should tell me, of course after all of the DSM's I've personally owned we would have no experience in this issue.

Quote:

Drives: 2008 Evolution GSR SSS, 2005 Evolution MR, 2003 Evo GSR, 1995 TsiAWD, 1995 GST, 1995 Tsi 2wd, 1991 GVR4 WW, 1991 GVR4 NBM, 1993 TsiAWD, 1991 Tsi, 1995 RS N20

c kim · Jul 10, 2009, 08:18 PM

R/TErnie · Jul 10, 2009, 08:20 PM

maybe it's not what you said, but how you said it.

TTP Engineering · Jul 10, 2009, 08:22 PM

Quote:

Originally Posted by R/TErnie

maybe it's not what you said, but how you said it.

We are cut and dry and have only the time for the facts here. Not the fluffery.

E VOL IX · Jul 10, 2009, 08:35 PM

Quote:

Originally Posted by TTP Engineering

So you walked the stubshaft and joined the club of tens of others who have done the same thing, come to the forum to ask for advice, only to put a stubshaft back in. Maybe next time you'll get some of that metal in your engine bearings, oil cooler and lifters costing you thousands of dollars before you just fix the real issue.

I swear I don't understand some people.

These are not DSMs.

+1 i wont install a stubby into anything i own

ModenaTwinTurbo · Jul 10, 2009, 08:59 PM

amazing it must be the alum or the clearance on the evo pumps. maybe the type of oil or something.

it is clearly only an issue with evo pumps.

they are about 100 dollars cheaper i dont know if that has anything to do with it or what. but i'm going to my machine shop tomorow with a balance shaft to see if they can reproduce this. i dont have time to send things out at this time.

i really really wish i would have known this earlier, the motors not in the car yet tho. i thank the first guy that posted the ams kit. possibly saved this motor wow. thanks. all other evo motors i ever did were at dealerships so they used balance shafts.

Eddie Rosado

casper980 · Jul 10, 2009, 09:13 PM

don't put the stub shaft back in. Thats just plain stupid.

TTP Engineering · Jul 10, 2009, 09:22 PM

Quote:

Originally Posted by ModenaTwinTurbo

amazing it must be the alum or the clearance on the evo pumps. maybe the type of oil or something.

it is clearly only an issue with evo pumps.

they are about 100 dollars cheaper i dont know if that has anything to do with it or what. but i'm going to my machine shop tomorow with a balance shaft to see if they can reproduce this. i dont have time to send things out at this time.

i really really wish i would have known this earlier, the motors not in the car yet tho. i thank the first guy that posted the ams kit. possibly saved this motor wow. thanks. all other evo motors i ever did were at dealerships so they used balance shafts.

Eddie Rosado

The timing belt pulls up on the stub and with no axial brace in the bshaft bearing location to keep it from pulling up diagonally, it will wear out the case.

ModenaTwinTurbo · Jul 11, 2009, 12:41 AM

Quote:

Originally Posted by TTP Engineering

The timing belt pulls up on the stub and with no axial brace in the bshaft bearing location to keep it from pulling up diagonally, it will wear out the case.

i'm sure this is all correct, proven and tested.

how ever it would always have some sort of deflection.... whats the bearing clearance for that shaft? could someone take the length from the bearing to the gear and see what the total movement would be, with oil pressure, and with out oil pressure.

i think its more of a harmonic balance issue at high rpm than anything.

this shaft even the modifyed one isnt locating the gear to a perfect center, i do believe how ever it is "dampening" its movement.

i'm not knocking it at all, i do believe its very injenious and i kinda always felt wierd about using the g61 shaft... even tho that motor used it stock.

Eddie Rosado