Double base gaskets????
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,553
Likes: 3,309
From: Cental, MI
So both of those gaskets came off of one cylinder base The one doesn't even look used.. As for the cylinder heads yeah they're stock and no it doesn't look like they've been milled so you're good to go.. What I would do though while you got it all apart I'd mock up each cylinder back onto the block and see where your piston sit's in the cylinders maybe we can figure out why there was two gaskets but do it with nothing no gaskets put the cylinders back on and measure how far your pistons are in the hole, or possibly even above the cylinder deck.. If you take four pieces of 3/4-in PVC pipe 1-in long put them on the studs and then use the head bolts torque the cylinder down to get an accurate reading of the piston in the hole. 10 - 15 foot lbs should do it..
Yup... both gaskets were on one base. He had it torn down and put back together but hadn't torqued anything down. given that the head gaskets didn't look all that great, my buddy and I figured we ought to check the base gaskets. That's when we found the two gaskets on each base. couldn't think of why he would of done that but figured I'd ask here and see if anyone had any ideas.
I will mock it up to check the deck height/clearance and see if that was a concern... but hell, maybe he had seeping before and thought this would be good insurance against it? FIIK!
I will mock it up to check the deck height/clearance and see if that was a concern... but hell, maybe he had seeping before and thought this would be good insurance against it? FIIK!
Gee Wizz... That Internet pictutre sure looks Stock to me!!!!! Geeeze
Last edited by Racepres; Mar 2, 2020 at 08:30 PM.
Seasoned HDF Member
Joined: Mar 2010
Posts: 20,958
Likes: 7,486
From: Poolville
No nothing against claying, always good to know where the pistons are though..
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,553
Likes: 3,309
From: Cental, MI
I guarantee that with "non-OE" Parts I can get good Squish and still Biff the Valves!!!
Only on a Known Stock Engine would I even consider a cam change, let alone a Deck Adjustment
Last edited by Racepres; Mar 5, 2020 at 07:04 AM.
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,553
Likes: 3,309
From: Cental, MI
Various points at the Valve heads and Piston to Head get a small ball of Clay.. Proper tools are required to check piston to Valve clearance... but Must be done IMO especially with an Engine that has Pushed out a Valve Guide!!!!
Good Job for a Seasoned Indy!!!!
Shovelhead
https://www.hdforums.com/forum/shove...and-stuff.html
EVO
https://www.hdforums.com/forum/engin...clearance.html
Good Job for a Seasoned Indy!!!!
Shovelhead
https://www.hdforums.com/forum/shove...and-stuff.html
EVO
https://www.hdforums.com/forum/engin...clearance.html
Last edited by Racepres; Mar 6, 2020 at 09:20 AM.
Road Master
Joined: Jan 2020
Posts: 934
Likes: 1,050
From: So Calif
Why haven't you contacted the seller you bought it from to ask him some of these questions? WHY did he tear it down? It wasn't just to put a cam in, unless he needed more clearance. Were you planning on just bolting it all back together? Too many unknowns here. You need to closely check everything (top end, and bottom) on this before you assemble. It is a lot easier to do now, than find out the hard way!
Cruiser
Joined: Oct 2012
Posts: 167
Likes: 12
From: florida
just a guess
So.... I bought a 96 evo for a build, and have found that there are 2 base gaskets under the jugs???? One is beaded and the one on top is a plain paper gasket. Can anyone tell me why someone would do this instead of a single gasket?
Also, thinking about using a cometic rubber base gasket... Anyone have experience with these? Worth it?
Also, thinking about using a cometic rubber base gasket... Anyone have experience with these? Worth it?
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