Drivetrain 62 kit on its way to M7 ... Yes it is happening
#226
As stated earlier in the thread with regards to the motor being lost... Lets just call it a hunch that more than one piston was lost...
#228
If you are alluding to the fact that 4 pistons were replaced that is correct. The owner opted for a upgraded pistons and replaced them all rather than just the broken one. Call him crazy but that is the way he rolls
Randy
M7 Tuning
#230
I am stoked he put real pistons in it! Lets see some power!
#232
#233
#234
wow... interesting stuff... I am glad M3 is being specific... as I was just going to respond with similar questions..... I am suprised NAM is not asking more... thinking of how overly technical it can get here with DYNOs and WHP.. LOL
So randy... Did you see the motor?
did the pistons melt?
when did this all happen...
I just talk to Peter... and he said nothing... I figured he woulda... but who knows... LOL... I too have seen alot of damage from crank pullies.. crazyness.. but I would think the oil pump going out woulda really been a big deal
So randy... Did you see the motor?
did the pistons melt?
when did this all happen...
I just talk to Peter... and he said nothing... I figured he woulda... but who knows... LOL... I too have seen alot of damage from crank pullies.. crazyness.. but I would think the oil pump going out woulda really been a big deal
Last edited by Tüls; 02-15-2007 at 08:44 PM.
#235
He is not being specific, but out on a fishing expedition, insinuating things like melted pistons etc.
The gear rotor in the oil pump broke in seven pieces, one of the lose fragments got scoped up by the crank hit the bottom of the #2 piston, broke the skirt.....That's it. nothing else was destroyed from the frag. nothing melted or otherwise got destroyed. (this happened as the car idled at 800rpm).
We decided to replace the pistons with some high performance units for added protection and performance.
The car will be back to testing early next week, and when I /we are ready
to give final numbers you the NAM members will be the first to know.
Peter
M7 Tuning
562-608-8123
The gear rotor in the oil pump broke in seven pieces, one of the lose fragments got scoped up by the crank hit the bottom of the #2 piston, broke the skirt.....That's it. nothing else was destroyed from the frag. nothing melted or otherwise got destroyed. (this happened as the car idled at 800rpm).
We decided to replace the pistons with some high performance units for added protection and performance.
The car will be back to testing early next week, and when I /we are ready
to give final numbers you the NAM members will be the first to know.
Peter
M7 Tuning
562-608-8123
#236
I apologize in advance if I missed it on the preceding page, but how did the oil pump gear let go?
- Did one of the gear teeth snap with no signs of wear? In other words was it a spontaneous failure?
- Or Was there already excessive wear on the gear teeth and then one went?
Is there a reason you think that it was related to the crank pulley as opposed to running the engine at elevated RPM? I've seen gear failures due to running beyond the abilities of the pump (friction) and also due to harmonics - I'm wondering what about the broken part tipped the owner off?
- Did one of the gear teeth snap with no signs of wear? In other words was it a spontaneous failure?
- Or Was there already excessive wear on the gear teeth and then one went?
Is there a reason you think that it was related to the crank pulley as opposed to running the engine at elevated RPM? I've seen gear failures due to running beyond the abilities of the pump (friction) and also due to harmonics - I'm wondering what about the broken part tipped the owner off?
#237
He is not being specific, but out on a fishing expedition, insinuating things like melted pistons etc.
The gear rotor in the oil pump broke in seven pieces, one of the lose fragments got scoped up by the crank hit the bottom of the #2 piston, broke the skirt.....That's it. nothing else was destroyed from the frag. nothing melted or otherwise got destroyed. (this happened as the car idled at 800rpm).
We decided to replace the pistons with some high performance units for added protection and performance.
The car will be back to testing early next week, and when I /we are ready
to give final numbers you the NAM members will be the first to know.
Peter
M7 Tuning
562-608-8123
The gear rotor in the oil pump broke in seven pieces, one of the lose fragments got scoped up by the crank hit the bottom of the #2 piston, broke the skirt.....That's it. nothing else was destroyed from the frag. nothing melted or otherwise got destroyed. (this happened as the car idled at 800rpm).
We decided to replace the pistons with some high performance units for added protection and performance.
The car will be back to testing early next week, and when I /we are ready
to give final numbers you the NAM members will be the first to know.
Peter
M7 Tuning
562-608-8123
If I decide to go with the M62, should I replace the pistons?
Seriously, let us know how the whole thing goes!
#238
Randy
M7 Tuning
#240
any pics of the ringlands on the piston with damaged piston skirt?
If you didn't have a melt down, or a ringland failure due to detonation... it shouldn't be too hard to get a pic of this...
ALso, did you guys loose oil presure on the motor? If so... you might want to check the bore on all of those cylinders...
If you didn't have a melt down, or a ringland failure due to detonation... it shouldn't be too hard to get a pic of this...
ALso, did you guys loose oil presure on the motor? If so... you might want to check the bore on all of those cylinders...
#241
I know people talk alot of crap Peter... heck I have been on the recieving end of enough of it being a twincharge guy.. and especially having worked with Fireballed.. yet I remain open to tell people whatever they want to know... if I know the answer that is... LOL.... I really don't think everyone is out to get you... that's kinda the reason I posted.... cause I was wondering the same thing... and people ofcourse think if it's one guy it's an attack.. I am sure others wanna know, and prolly just don't post cause as you an I talked about...everything on NAM always has to be a fire storm...
#242
#243
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huh... uhh well I was thinking that too... cuase if the oil pump failed ...I would think from heat and friction due to lack of oil... that the pistons would either sieze or melt... so.. I dont think he was fishing or insinuating... M3 and Isellem have built some pretty sick cars... including the fastest SC MINI
As for questions relating to the failure, I'm sure we'd all agree those are to be expected. I do think the snide comments & innuendo are uncalled for though. As you mentioned, you've been a victim of the same treatment and can surely sympathize better than most.
Frankly, I'm surprised that M7 is willing to get on here and post about it at all, considering the unforgiving environment on here at times. Kudos, even if it did seem tardy to some.
#244
ha ha yea.... and it's just such a tribute once again to how stout these little motors are... and the abuse they can take...
As I understand it, the car was idling and was shut down as soon as the owner heard a strange sound. Apparently, it didn't have time to melt the pistons or do much/any scoring of the cylinder walls. Correct me if I'm wrong Randy/Peter.
As for questions relating to the failure, I'm sure we'd all agree those are to be expected. I do think the snide comments & innuendo are uncalled for though. As you mentioned, you've been a victim of the same treatment and can surely sympathize better than most.
Frankly, I'm surprised that M7 is willing to get on here and post about it at all, considering the unforgiving environment on here at times. Kudos, even if it did seem tardy to some.
As for questions relating to the failure, I'm sure we'd all agree those are to be expected. I do think the snide comments & innuendo are uncalled for though. As you mentioned, you've been a victim of the same treatment and can surely sympathize better than most.
Frankly, I'm surprised that M7 is willing to get on here and post about it at all, considering the unforgiving environment on here at times. Kudos, even if it did seem tardy to some.
#245
Pic's (if you have them) PLEASE!!! There is a thread for blow / broken motors you can post in. 8200 redline!!! Please, no more apologies or apologists. Lets get back to the mp62 and possibly, some tuning info related to IT. Off to MOP to see the new r56 today and get my 30,000 mi "free oil change" !!! Should be fun.
#246
#247
The rev limiter on that car Bob is over 8 grand, and without having the entire reciprocating assembly balanced for what was being used (EDIT:and that rpm), eventually something is going to give. If you keep your revs more down to earth, you should be fine.
#248
Thanks..... like I said it is the stock rev limiter...... I was talking to dave yesterday and he said for a strreet car that is all necessary and with my driving style (so far anyway) I have to agree..... I would like an 05/05 crank pulley though just to be safe
#249
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1) Stock crank pulleys were built in such a fashion for a reason.
2) It will take a long time/many many miles to know any cause/effects of a lightened crank pulley.
I think its a question of - How long do you intend to keep the car?
#250
What damage have you seen from lightweight crank pulleys?
wow... interesting stuff... I am glad M3 is being specific... as I was just going to respond with similar questions..... I am suprised NAM is not asking more... thinking of how overly technical it can get here with DYNOs and WHP.. LOL
So randy... Did you see the motor?
did the pistons melt?
when did this all happen...
I just talk to Peter... and he said nothing... I figured he woulda... but who knows... LOL... I too have seen alot of damage from crank pullies.. crazyness.. but I would think the oil pump going out woulda really been a big deal
So randy... Did you see the motor?
did the pistons melt?
when did this all happen...
I just talk to Peter... and he said nothing... I figured he woulda... but who knows... LOL... I too have seen alot of damage from crank pullies.. crazyness.. but I would think the oil pump going out woulda really been a big deal