chana1634 Posted November 20, 2022 Share Posted November 20, 2022 Hellow everyone can anybody tell me the torque on a 2007 mp7 engine for main bearings and rod bearing. Nad also this caps on tbe rod bearing look lime they broke rouhg and not sure what happen does any body seen somwting like that. Thanks to all Quote Link to comment https://www.bigmacktrucks.com/topic/70729-mp-7-mains-and-rods-bearing-torque-spec/ Share on other sites More sharing options...
Joey Mack Posted November 21, 2022 Share Posted November 21, 2022 you may get better results, if you move this post to the engine and transmission topic board... someone may post the torque procedure.. it is several steps, and finishes with torque turning,, ( Degree's) jojo Quote Link to comment https://www.bigmacktrucks.com/topic/70729-mp-7-mains-and-rods-bearing-torque-spec/#findComment-515598 Share on other sites More sharing options...
Vmac3 Posted November 21, 2022 Share Posted November 21, 2022 Crankshaft Mains Step 1. 150 ±20 N•m (111 ±15 lb-ft) Step 2. Angle tighten 120° ±5° Crankshaft Main bolts are only to be reused 4 times. Connecting Rod Bearing Caps Step 1. 30 ±3 N•m (22 ±2 lb-ft) Step 2. Angle tighten 180° ±6° Connecting rod bolts are only to be reused 4 times. If you are reusing the connecting rod bolts, then a light coating of oil on the threads and under the bolt head are to be applied. If you are replacing the bolts with new ones, they are coated with phosphate and oil and they must be installed dry. The information above was taken out from the engine manual. If the bolts broke you may want to find the problem before reassembly. Also, those connecting rods are fractured rods, if they were de-torqued they will loose their strength. Those rod caps are an exact fit, if they move around the fracturing will not be the same and they can/will fail prematurely. V 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70729-mp-7-mains-and-rods-bearing-torque-spec/#findComment-515615 Share on other sites More sharing options...
chana1634 Posted November 21, 2022 Author Share Posted November 21, 2022 thanks guys i appreciate you guys the information. Quote Link to comment https://www.bigmacktrucks.com/topic/70729-mp-7-mains-and-rods-bearing-torque-spec/#findComment-515638 Share on other sites More sharing options...
Mackpro Posted November 21, 2022 Share Posted November 21, 2022 The connecting rods are “ Fractured Fit” on MP engines. They freeze and break them when they are whole. So they have a rough look where the lower and upper meet. Quote Link to comment https://www.bigmacktrucks.com/topic/70729-mp-7-mains-and-rods-bearing-torque-spec/#findComment-515639 Share on other sites More sharing options...
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