[Fot] FW: My Pistons "Pop Up" (what should I do)

[malaboge at aol.com]

Henry,

Well Carillo and J&E have been makin those bits for "a while now", so that's
prolly not the problem, but ya never know!.  Are these flat top pistons, or
the units with a "bar" across the top...or even "round top" pistons?  The
"bar" type will definitely protrude above the block.  The "round top" units
will also protrude above the block in the center and the "nose" that sticks
out between the valves on the head has to be slightly modified.  If they're
flat tops and every thing else measures OK, my bet is for decked block setup
for a flycut head...not an unknown setup on an MG motor.
Considering how marginal the head gasket setup is for MGA/B motors (and how
often it is the crux of between session thrashings) I don't think you're gonna
have a lot of success running a "fat" gasket.
Yeah 1622 blocks are getting a little scarce on the ground, so if it were
mine, I'd sell the J&E's and have another set made with a modified pin
position. Or, if there's enuf "meat" on the crown, cut 'em to fit.

ported and relieved, stroked and bored in Nor Cal
Nick






-----Original Message-----
From: Henry Morrison <dos_gusanos at msn.com>
To: fot <fot at autox.team.net>
Sent: Wed, Apr 25, 2012 4:37 am
Subject: [Fot] FW: My Pistons "Pop Up" (what should I do)


From: dos_gusanos at msn.com
o: malaboge at aol.com
ubject: RE: [Fot] My Pistons "Pop Up" (what should I do)
ate: Wed, 25 Apr 2012 05:29:13 -0600


GA 1622 cc Carrillo Rods, J & E pistons,  I didn't deck the block but the PO
ight have.....................Cheers Henry


To: dos_gusanos at msn.com
ubject: Re: [Fot] My Pistons "Pop Up" (what should I do)
rom: malaboge at aol.com
ate: Wed, 25 Apr 2012 02:14:28 -0400

K Henry...
ess up, whats this "brand X" motor?  More info needed here...
irst thoughts include:
ecked block
onger rods
rong pistons
ome hotrodders have been known to setup a motor like this with a flycut head
r????

-----Original Message-----
rom: Henry Morrison <dos_gusanos at msn.com>
o: fot <fot at autox.team.net>
ent: Tue, Apr 24, 2012 8:41 pm
ubject: [Fot] My Pistons "Pop Up" (what should I do)

ello engine rebuilding enthusiasts.  I have assembled the lower end of my
rand X motor and through all my work and measuring, have created a situation
here the Pistons "pop up" about .030" above the deck.  Can I simply deal
ith
his by purchasing a .060" thick solid head Gasket?  giving a .025" to .030"
learance between the top of tht piston and the head?
I'd rather not machine down the pistons but will if that is what it is going
o take.
Cheers, Henry Morrison, New Mexico
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