how do you remove a crankshaft bearing caps

M

MR99SVTCOBRA

Formally mr97stanggt
#21
#21
EHA Racing said:
I'm assuming you are replacing the rings?
At a minimum have the block honed (with torque plates) and a good block wash. Have the machinist measure the cylinders with a bore guage and measure your current pistons. That will give you an idea of piston to wall clearance and be the deciding factor or whether you bore it or not.
Click to expand...

do i have to have my new pistons in hand at the time they are boring the cylinder walls or can they just bore it and i can order new pistons oversized to what ever they bored it too
 
teknik

teknik

Well-Known Member
#22
#22
There is a tool you need for the 4.6 and 5.4 engines....it is a block spreader.....it puts pressure on the sidewalls of the block and allows EASY removal and installation of the caps.....no hammers needed.
 
EHA Racing

EHA Racing

Member Plus
#23
#23
MR99SVTCOBRA said:
do i have to have my new pistons in hand at the time they are boring the cylinder walls or can they just bore it and i can order new pistons oversized to what ever they bored it too
Click to expand...
1st step is to measure the block and the existing pistons. If clearance is Ok with just a hone you are set.
If the block needs to be bored you have 2 options.
The big question is: Custom or Off the shelf piston?
If you are buying an off the shelf piston you will need them in hand. Your machinist will bore and hone the block to the proper clearances based on the piston diameter. (not what it says on the box, the ACTUAL diameter).
If you are going with a custom piston then you will need to bore and hone the block 1st and then order the pistons based on the size of the finished bore.
 
EHA Racing

EHA Racing

Member Plus
#24
#24
teknik said:
There is a tool you need for the 4.6 and 5.4 engines....it is a block spreader.....it puts pressure on the sidewalls of the block and allows EASY removal and installation of the caps.....no hammers needed.
Click to expand...
Anything from having to tap a main cap with a hammer is a good thing. Luckily my new Dart block came with a groove in the cap. You stick a small prybay in, add just a hair of pressure and Presto. Dead blow stays in the drawer lol.
 
M

MR99SVTCOBRA

Formally mr97stanggt
#26
#26
EHA Racing said:
I'm assuming you are replacing the rings?
At a minimum have the block honed (with torque plates) and a good block wash. Have the machinist measure the cylinders with a bore guage and measure your current pistons. That will give you an idea of piston to wall clearance and be the deciding factor or whether you bore it or not.
Click to expand...
im replacing everything pistons rings rods crank cams roller rockers springs everything only thing im keeping is the block and heads which i will take to get inspected .....now this is not like a must do project im just keeping my self busy and learning so in the future i dont have to depend on anyone to do my work....my main project right now is my cobra that is where my money is going :awesomework:
 
You must log in or register to reply here.