I need a pic of the main caps for an ld9. Im assembling my bottom end and need to know what direction they go on, i dont wanna put them on backwards...... thanks
01' Z24 5 speed
422whp/400wtq
T4 Turbocharged
Built LD9
HP Tuners
damn man i had to dig out my pics to be for sure! LOL
#1 starts at the front of the motor, which is by the timing sprocket. THEN to get the right direction you need to set them up if you were to be reading them from the transverse front (oil filter side)
but anyways, heres a couple pics for reference...
If it takes forever.... I will die trying. Underdog Racing
you wouldnt happen to have a pic to compare how the piston and rod go together compared to the stock ones would you? i cant figure out how to put them together and i dont want to get it wrong lol
01' Z24 5 speed
422whp/400wtq
T4 Turbocharged
Built LD9
HP Tuners
Anyone happen to know the torque sequence for the main caps?
01' Z24 5 speed
422whp/400wtq
T4 Turbocharged
Built LD9
HP Tuners
bump. i would like to get this finished today
01' Z24 5 speed
422whp/400wtq
T4 Turbocharged
Built LD9
HP Tuners
best advice i can give... go buy a haynes manual. it will SHOW you the torque sequence...
If it takes forever.... I will die trying. Underdog Racing
Brad, where did you get the "special" main caps ??
Jason
99 Z24
LG0/LD9 for Life
10 Year Bash Veteren
I believe he had them made by the machinist that does most of his work.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
theres hundreds of people on this site that have built the ld9 motor, not 1 person knows the torque sequence and specs for the crank?!?!
01' Z24 5 speed
422whp/400wtq
T4 Turbocharged
Built LD9
HP Tuners
Publikdstrbnce wrote:theres hundreds of people on this site that have built the ld9 motor, not 1 person knows the torque sequence and specs for the crank?!?!
Off the top of my head. No I don't. Sounds like you got in over your head. Get the manual and do it right.
FU Tuning
Blwn LD9 wrote:Brad, where did you get the "special" main caps ??
yeah, mike had it right. had them done along with the 2.3 oil pump swap he does as well... i figured extra insurance with the gutted crank so why not.
If it takes forever.... I will die trying. Underdog Racing
I like those Brad, looks sick.
~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD AUTOMATIC!!
328 HP
306 TQ
I checked alldata.diy.com and my Haynes manual and it does not list a tightening sequence for the main caps. I will check my GM manuals later today
Jason
99 Z24
LG0/LD9 for Life
10 Year Bash Veteren
This is all I found...
Crankshaft Bearing Cap Bolts................................................................................15 lb ft + 90°
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
Usually I would start on the center main cap and then the next two then the two outers...I am not a professional engine builder but that is what I have always been told.
There is no specific sequence that needs to be followed, just have to start with the center #3 and work your way out. For the record, if anyone is using arp main studs instead of the stock bolts, they need to be torqued to 80 ft lbs. Not the stock specs
01' Z24 5 speed
422whp/400wtq
T4 Turbocharged
Built LD9
HP Tuners
Publikdstrbnce wrote:There is no specific sequence that needs to be followed, just have to start with the center #3 and work your way out. For the record, if anyone is using arp main studs instead of the stock bolts, they need to be torqued to 80 ft lbs. Not the stock specs
Digging up another old thread, but is that correct?
80ft/lbs seems like a lot compared to the factory of 15 ft/lbs +90*
"Oil Leak ? What oil Leak ? Oh, Thats Just The Sweat From All The HorsePower!!"
Nice pics Brad.
I checked alldatapro.com
15 ft. lbs + 90 degree turn. I'd torque them all to 15 then go back and turn all 90 degrees. Hope it spins over good for you.
I'd check your bearing clearances before you just go with it.
The block and caps will be line honed with the studs installed to make sure all is well.
"Oil Leak ? What oil Leak ? Oh, Thats Just The Sweat From All The HorsePower!!"
