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Old 07-25-2013, 07:49 PM   #1
jwgstang
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piston ring alignment and torque sequence

hello I am stuck and the helm manual dont say anything about the piston ring alignment and main cap torque pattern... its is 100% bone stock please if anyone could be of some assistance that would be great
thanks
justin


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Old 07-26-2013, 07:36 AM   #2
boardliquid01
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Install the crankshaft.
Position the crankshaft.
Install the main bearing caps.
Position the main bearing shells, clean and free of oil, into the cylinder block and the bearing caps.
Coat the inner side of the bearing shells with engine oil.

NOTE: The connecting rods are numbered starting at the timing belt end. The joined valve recesses on the piston crown face the intake side.

Install the pistons.
Coat the pistons and cylinder liners with engine oil.
Distribute the piston ring gaps and the elements of the oil scraper ring evenly around the circumference (120 degrees).
Compress the piston rings using a suitable piston ring compressor.
Press pistons 1 and 4 with the handle of a hammer into the cylinders. The connecting rod bearing journals for cylinders 1 and 4 must be at BDC.
Position the corresponding bearing shells, clean and free of oil, into the connecting rod and the connecting rod bearing cap.
Coat the inner side of the bearing shells with engine oil.
NOTE: Use new connecting rod bearing cap bolts.

NOTE: Do not fully tighten the connecting rod bearing cap bolts at this stage.

Install the bearing caps.
Rotate the crankshaft through 180 degrees and insert pistons 2 and 3.
Position the corresponding bearing shells, clean and free of oil, into the connecting rod and the connecting rod bearing cap.
Coat the inner side of the bearing shells with engine oil.

NOTE: The crankshaft must rotate freely, if necessary check and adjust the bearing clearances.

Tighten the main bearing and connecting rod bearing bolts.
Tighten the main bearing bolts in two stages.
Stage 1: 25 Nm.
Stage 2: 60 degrees.
Tighten the connecting rod bearing bolts in two stages.
Stage 1: 35 Nm.
Stage 2: 90 degrees.
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