nah I know its small, but its still a $$$$ upgrade that we have no need for at that power level.
injectors = broken crank ?
- Thread starter BIG DIPPER
- Start date
nah I know its small, but its still a $$$$ upgrade that we have no need for at that power level.
My stock turbo was designed for quick spool but she got pretty hot on a hard push. The High Tech turbo has a stainless housing, spools pretty good and once she's up it really cleans up and stays below 1100 deg. It cools down quick to 800-900 as soon as you let off some. That helps alot for the long term. The SS housing is great at holding heat in the turbo. I think Dmax's aluminum heads do a great job of dissipating heat so you can run that motor hotter.
I can smoke like a freight train at will but once I'm in third gear it will hardly smoke at all when I punch it. Fourth is another story. With the TC locked in fourth the smoke comes back because the ECM dumps fuel big time. It knows the TC is locked and adds more fuel. Feels like a rocket when it shifts through the gears an finally locks into fourth it literally launches. I often get a bark during the shift.
I can smoke like a freight train at will but once I'm in third gear it will hardly smoke at all when I punch it. Fourth is another story. With the TC locked in fourth the smoke comes back because the ECM dumps fuel big time. It knows the TC is locked and adds more fuel. Feels like a rocket when it shifts through the gears an finally locks into fourth it literally launches. I often get a bark during the shift.
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so this thread is about a review of the HT 62 turbo now??? A 62 is too small for a duramax so Im not sure why you are trying to sell one to us.
Another thread destroyed, thanks.
ben
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What happens when you have balanced/flow checked injectors and you bend/break a crank? Then what do you blame it on?
Exactly-every little bit helps.
The more data and sharing that gets contributed on this subject will also help expedite a possibly soloution as well if it gets nailed down to one direct contributor as to what is causing the failures. So keep the good stuff coming, and the turbo talk is here : http://www.duramaxdiesels.com/forum/forumdisplay.php?f=79 for those that want to continue the turbo conversation.
Just to waken this thread up some, i broke my crank in my truck a while back when i was at scheids. I have socal diesel balanced 60% over injectors.
super diesel
<<<< Under Pressure
I guess i should have worded it differently, so let me clear this up. My point was i had balanced injectors, and im very happy with them and everything i got from Guy, they were all quality products, but i beleive we need to look else where for the broken crank problems. I dont think unbalanced injectors are causing the cranks to break. As nice as it would be for something simple like that, thats not the problem obviously.
We havent pulled the motor yet, i just havent got the motivation since ive been back, and i figured id make it a winter project to decide what im going to do.
super diesel
<<<< Under Pressure
I was wondering because I've seen a few broke ones now between the 1st and 2nd journals. But with closer inspection, it looks as though the bearing had spun on the #2 journal like mine did. I herd of some spinning the #1 but I haven't seen any yet (in person). The ones I saw had chewed up the bearing so much there was no support and WALLA. Mine (crank) was out of center .005 at that journal after I had spun it. How much does it need to flex before detonation. When you get in there, look at the mains in this location to see if there is any black deposits on either side of them indicating that the bearing failed there first for some reason. My new bearings from Guy have .001 extra clearance for .003 total now.
Oh yea. Forgot to say. I had to not only replace the crank but the block as well. For some odd reason the journal there had closed up about .015 (side to side), but the up and down Dim. was with in about .0005. Yes you read correctly, closed up, as in smaller. Go figure.
Oh yea. Forgot to say. I had to not only replace the crank but the block as well. For some odd reason the journal there had closed up about .015 (side to side), but the up and down Dim. was with in about .0005
. Yes you read correctly, closed up, as in smaller. Go figure.
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i see this happening mostly in lb7 blocks..correct? might there be some more merit now to the LBZ block > lb7 block discussions from a couple years ago?
super diesel
<<<< Under Pressure
I've seen it on LB7s, & LBZs. The block on the LLYs are no different than the LB7 so I'm sure there having it too. I'm sure the LMMs aren't immune either. I have seen pics but no hands in these others yet.