BuiltZMotors Analysis of JoeDirtPharmD engine: warning->DETAILED
08-30-2007, 06:47 AM
#41
Very nicely documented - effort above and beyond the call of duty - kudos. This thread should NOT be locked. Anyone can make a mistake and there can be multiple interpretations of the same finding. GTM should have the opportunity to present their perspective.
08-30-2007, 06:52 AM
#44
Do you guys mic the pistons before assembly? I know you said the pistons were on the shorter diameter side of the tolerance, but I was just curious if you measure them prior to assembly.
Hope everything works out well for all the parties involved.
Hope everything works out well for all the parties involved.
08-30-2007, 06:57 AM
#45
Sponsor
builtZmotors
builtZmotors
Thread Starter
iTrader: (21)
Join Date: Jul 2004
Location: Albuquerque, NM
Posts: 2,780
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by jtabraham
Do you guys mic the pistons before assembly? I know you said the pistons were on the shorter diameter side of the tolerance, but I was just curious if you measure them prior to assembly.
Hope everything works out well for all the parties involved.
Hope everything works out well for all the parties involved.
08-30-2007, 07:02 AM
#46
Sponsor
builtZmotors
builtZmotors
Thread Starter
iTrader: (21)
Join Date: Jul 2004
Location: Albuquerque, NM
Posts: 2,780
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by rcdash
Anyone can make a mistake and there can be multiple interpretations of the same finding. GTM should have the opportunity to present their perspective.
My first question to GTM (which was never answered) was- "What was the measured FINAL BORE SIZE", as I ssumed the piston may have collapsed, as it obviously did!
Last edited by 350zDCalb; 08-30-2007 at 07:29 AM.
08-30-2007, 07:14 AM
#47
Originally Posted by 350zDCalb
thinking back to the original analysis, it was explained to the customer that the boring/honing was too large and the block COULD NOT be re-used..if that isn't the furthest thing from the truth!
"They (GTM) stated that they could not use the current longblock secondary to scoring and machining errors from the previous build, so I will be transporting to them a spare longblock I have on my trip to California this weekend."
Last edited by QuadCam; 08-30-2007 at 07:31 AM.
08-30-2007, 07:16 AM
#49
Originally Posted by THE ROADSTER
+ 1 for the detail write up to defend your company. I have alot of respect for a company when they go through this much to defend them self. Unfortunaly it will cost $$$$ to do so.
08-30-2007, 07:37 AM
#50
Originally Posted by failsafe306
Joedirt, sorry, I like you, but you just wasted $14k. GTM should have mentioned the poor condition of the piston rings, the apparent "shrinking" of the pistons, the bogus valve seal results, and the signs of detonation before passing the blame on to Todd. Almost makes me sick to see how they pulled the wool over your eyes. They're only intent was to put more money in their pocket and trick the forum into thinking that they're God's gift to the 350Z.
man i do hate that for JoeDirt. i just want him to get this thing back together and running right.
good job todd and BZM, hell of an analysis. kudos!
08-30-2007, 07:49 AM
#51
Originally Posted by tig488
they probably didnt look at those things.
man i do hate that for JoeDirt. i just want him to get this thing back together and running right.
good job todd and BZM, hell of an analysis. kudos!
man i do hate that for JoeDirt. i just want him to get this thing back together and running right.
good job todd and BZM, hell of an analysis. kudos!
08-30-2007, 07:58 AM
#54
Originally Posted by THE ROADSTER
I don't think Sam is arrogant, he has alway being straight with me.
08-30-2007, 08:36 AM
#56
Registered User
iTrader: (4)
Join Date: May 2005
Location: Roy, WA
Posts: 738
Likes: 0
Received 0 Likes
on
0 Posts
Todd, excellent work. I think you have proved without question that there were no machining errors with the motor. Your reputation is intact.
I can't wait to hear GTM's response.
I can't wait to hear GTM's response.
08-30-2007, 08:52 AM
#59
glad to see a vender going beyond what a vender would normally do, but isn't it partly because BZM's reputation is on the line due to how public this mess has been? The money and time spent inspecting and rebuilding the engine on BZM's dime would be completely worth it if it clears their name, but in a normal case, I don't know if every customer could expect a fully rebuilt engine free of charge - as rare as a case like that might be
Last edited by sentry65; 08-30-2007 at 08:54 AM.
08-30-2007, 08:55 AM
#60
New Member
iTrader: (13)
Originally Posted by failsafe306
That's fine; I'm not saying they're another VRT or anything. Just seems like he saw an opportunity to make his shop look better all the while making a HUGE buck off an unsuspecting customer, and this thread proves it. Plus I have other issues with GTM besides this, that I won't go into.
id like to see what the 3rd party (g t m) will say about this now
I for a fact like the write up and the detail props to BZM for that....one thing is that i know the dyno runs (sheets) at the local dyno (dynocomp) did not show the lean condition specified and EGTs were fine, all this at the time the engine already started having trouble... since gtm is in question now maybe they can detail that these was also not the case with them if so...
Now as everybody this along write up so some stuff is a lil confusing but , the CYLINDER surface of Cyl #4 doesn;t show any signs of detonation? but the exhaust valve does? but the intake valve doesnt? i dont understand his partfindings? and so the cylinder shrank 0.0015" - what about the remaining 0.0055" of clearance that was found? NOt questioning validity of results just like some clarification THANKS!