lynnmor 7,321 #26 Posted July 28 12 hours ago, RED-Z06 said: Assuming the head is planed flat, doesn't take alot to shadetree plane a head uneven. I wish i had access to a bridgeport, ive got 3 or 4 heads that need it but are holding for now. I have a Bridgeport and believe me it ain't all that easy to find a way to clamp the head, with no distortion added, so that it is in the best possible position to make the cut. Many automotive machine shops now use a special belt sander to flatten heads, our little heads would take 1/10 of the time it takes to make out the bill. 1 Share this post Link to post Share on other sites
RED-Z06 2,221 #27 Posted July 28 35 minutes ago, lynnmor said: I have a Bridgeport and believe me it ain't all that easy to find a way to clamp the head, with no distortion added, so that it is in the best possible position to make the cut. Many automotive machine shops now use a special belt sander to flatten heads, our little heads would take 1/10 of the time it takes to make out the bill. Years ago my cousin had a 5hp briggs gokart, he pulled the cooling tins off because "it looked cooler". Well it got so hot the cylinder and piston melted together. I ended up with it, rebuilt it 0.020 over. the head was so warped that you could see daylight through it snugged down. I had a thick sheet of glass and i planed and planed..it would always blow in a different spot. I put a different head on and my problems went away. Flat planing by hand is difficult because of uneven force. 1 Share this post Link to post Share on other sites
TractorEd 633 #28 Posted July 28 I have turned the block upside down on a surface plate with wet sand paper and, in a figure 8, planed any distortion out. Worked quite well actually. 1 1 Share this post Link to post Share on other sites
John2189 454 #29 Posted July 28 Are you sure the head bolts isn’t bottomed out? Share this post Link to post Share on other sites
fourwheelhorseman 298 #30 Posted August 14 Unless I’m looking at it wrong…There is a huge gap, looks to me like a severely warped head. Share this post Link to post Share on other sites
Mike'sHorseBarn 2,999 #31 Posted August 14 17 minutes ago, fourwheelhorseman said: Unless I’m looking at it wrong…There is a huge gap, looks to me like a severely warped head. And it was, but it's been planed and all is good now! 1 1 Share this post Link to post Share on other sites
RED-Z06 2,221 #32 Posted August 14 2 minutes ago, Mike'sHorseBarn said: And it was, but it's been planed and all is good now! How much had to come off Share this post Link to post Share on other sites
Handy Don 12,281 #33 Posted August 14 12 hours ago, Mike'sHorseBarn said: And it was, but it's been planed and all is good now! 12 hours ago, RED-Z06 said: How much had to come off Gotta pay attention to this because there isn’t a lot of clearance between an open valve and the head above it and touching is, well, bad. 1 Share this post Link to post Share on other sites
Mike'sHorseBarn 2,999 #34 Posted August 14 I'm not sure how much they took off, he didn't say. I just know that when I bolted it on and fired it up, nothing bad happened. 1 2 Share this post Link to post Share on other sites
