Pullling a 304 w/out heads

7

77SSII

Member
Hey all,
I have a newly rebuilt 304 w/50 psi at the block and only 25 at the rocker shaft bases.
The block was line bored and custom cam bearings put in. I don't think they cut the bearings w/the stock grooves or gallery holes.
I want to pull the heads off and do a pressure check in case the head gaskets were put on wrong and are blocking the oil passages.
W/my 28v cordless drill @ roughly 1800 rpm the oil only dribbles out of the heads w/only 25psi...
If I take the heads & manifold off what is the best way to "grab" the rest of the engine to pull it out? Instead of re-assembling the intake/heads just to pull it off again once out.
Thanks!
 
Why the head bolt holes of course. :wink5:

buy 4 shorty 1/2-13 bolts and washers.

Lay the old gaskets on the deck to protect the surfaces then thread the bolts in to the holes through the chain links at the 4 corners. Don't worry about hurting the threads as they are good for thousands of pounds. Tape over the bores just incase you are going to reuse the block, pistons etc.
 
Yes most defianatly,even if you have an old set of head bolts.that will work., but as Robert said,get a few short bolts.Jeff
 
You May not have anything wrong with this engine! The bores in the cam are only aligned at one point in the rotation, you will only get oil at all at this point, and you wouldn't really get full pressure there anyway. The oil for the rockers comes from a cam bearing, which loses some of the pressure there. When I rebuilt my engine the galleries in the block were clogged and it was a chore to fix that. How are you checking pressure at the head anyway? At the plug at the end of the head or have you tapped the gallery at the rocker stand? Do clean out the rocker shafts. There is a thread on here about that. The plug at the end of the head is for a air compressor in hd applications, fyi.
 
chip nimmons said:
you May not have anything wrong with this engine! The bores in the cam are only aligned at one point in the rotation, you will only get oil at all at this point, and you wouldn't really get full pressure there anyway. The oil for the rockers comes from a cam bearing, which loses some of the pressure there. When I rebuilt my engine the galleries in the block were clogged and it was a chore to fix that. How are you checking pressure at the head anyway? At the plug at the end of the head or have you tapped the gallery at the rocker stand? Do clean out the rocker shafts. There is a thread on here about that. The plug at the end of the head is for a air compressor in hd applications, fyi.
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This story has an extensive history not known all.
Thanks for the post but it has been handled.
 
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