i need help with my rb25det

Discuss the RB20, RB25 and RB26 series engines.
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zman07
Posts: 87
Joined: Wed May 07, 2008 1:02 pm
Car: 1987 nissan 300zx, soon to be rb25det powered

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ok heres a stupid question, but does anyone know the torque specs of the connecting rods and main bearings bed plate. i have all the torque specs for the head, but if someone could help me with the lower engine that would be great.


RB24D
Posts: 182
Joined: Mon Jun 02, 2008 3:47 pm
Car: 1996 rb25det 240

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for the connecting rods 1st torque is 10-12 ft lbs 2nd torque is 60-65 with and angle wrench (not a torque wrench). For the mains it is 34-38 ft lbs but you must torque them in sequence Start in center and do 1and 2 then one to the rightof center 3-4 then one to the left of the center 5-6 and so on .After finished check that the crank turns freely with out binding and make sure you put a little oil on the bolt threads and seats.

Darius
Posts: 4820
Joined: Sun Mar 02, 2003 9:48 am
Car: RB25DET S14 - 665 WHP (SOLD)
Location: Chicagoland

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^^Note: These specs are only for OEM hardware, not ARP.^^

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zman07
Posts: 87
Joined: Wed May 07, 2008 1:02 pm
Car: 1987 nissan 300zx, soon to be rb25det powered

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thanks you guys this really helped me out alot, i appreciate all the help


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