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Crack Front iron n blow oil pump

Old 03-25-14, 03:37 AM
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Crack Front iron n blow oil pump

Last year, i was complain to my Team. with loose of oil pressure at end of front straight way
(from 120-100)

this years first event the condion get worse. with even lower Pressure n very hight oil temp

after a lot time spend under the car we find out.. the Oil pump crack into half !!!!!!!!!!!!!!!

that really sucks.... n i never heard this kind of problem before. and because race is about start in
24hr so i neeed to rush 700KM to get a oil pump from friends

another old nighter.... finally get it done. n ready to go to pratice before the race

Kaboom... with ligh load.. n about sec gear turn. i see the low oil psi sign.... n smoke

n i was like **** now what.............. park the car at safe zone n wait for the tow truck to tow it back

n this is what i find.. a Crack front iron... anotther thing i never experience before.............

i am totoal speechless ... hopely my accsump will save the engine .....

any thoght on this n possible upgrade so this wont happeand again ?

thanks for your time
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Old 03-27-14, 08:10 AM
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Had you been running the plug on the oil feed for quite sometime?

Was the oil pressure abnormally high before?
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Old 03-27-14, 02:21 PM
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Assuming the plug is straight threaded and not tapered (taper will split the cast front iron), and isn't over-torqued... That part of the iron is weak as it has a dowel going longitudinally into it. Add a bolt going down and another bolt going in from the side..there you go. Why is there a socket head plug in there anyways, from the factory it was plugged.

What do you have bolted to the side of the motor via that aluminum bracket? Is it heavy or a stressed member?

Is the motor solid mounted to the frame or are you using rubber or polyurethane motor mounts?

Most likely the oil pump sucked something in and cracked.
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