Re: Re: Re: 230 head bolt torque

Posted by Stan(VA). on January 06, 2002 at 17:13:44 from (207.172.228.7):

In Reply to: Re: Re: 230 head bolt torque posted by TerryC (MO) on January 06, 2002 at 16:01:48:

4 rods, 3 mains. The rods usually are allready stamped with a number on one side of the cap and the rod (1-4 front to back of motor) which helps make sure you don't try to put the cap on backwards also. If they're not, get a punch set and do it before you risk mixing them up. I would recommend only 1 cap or 1 main at a time to help minimize the chance of swaping by accident.

On checking whether they were swapped in the past, just look for damage! Usually oil pressure starts almost normal when cold, but drops badly when warmed up. On a rod you will often find a spun bearing and/or metal shavings from the sides being offset. Along with noticing a number 1 rod with a number 4 cap or so forth.
The mains are a little tougher. Usually not numbered (in my experience) and able to hide the abuse a little better. Check for excess clearance at the front or back of crank. Start with a loose fan belt and then pull back on the belt to take up the slack. You can sometimes hear an audible clunk as the crank comes up in it's journal or watch the crank pully for any vertical movement. Do the same at the back by prying up gently under the flywheel. The main with the thrust bearing is obviously differnet and less likely to be swapped if the last guy was just checking clearances like you are doing.
And if you are going to use a jack as sugested, get it settled first and don't move it during the bearing check. If the crank is moved any it will distort your reading.
Stan(VA).

Follow Ups:

• Re: Re: Re: Re: 230 head bolt torque ralph 19:21:32 01/06/02 (0)

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