|
|
|
|
| Author |
|
|
Registered
Join Date: Dec 2001
Posts: 193
|
Crankshaft Removal Questions....
I am dropping my motor (944 N/A) to have the crank ground due to a spun rod bearing.
Is there any special tools or procedures I should note or is a simple R/R procedure? I am most curious about the relationship with the oil pump. It will make more sense once it's on a stand, but any help here would be appreciated. Thanks! Pete |
||
11-22-2005, 01:14 PM
|
|
|
Registered
Join Date: Feb 2001
Location: Viera FL
Posts: 5,642
|
If the engine is out and on a stand, it is fairly easy. You will need to remove the crank pulley, timing gears, etc. You will aslo need to remove the oil pump drive gear, and the oil pump as well.
Then you remove the oil pan. Do yourself a big favor at this point and turn the motor upside down on the engine stand. You will see the bolts for the bearing cradle at this point, Remove the bearing cradle, and the crank lifts right out. Careful, it is heavy Grind, magna-flux, micropolish, and make sure the oil journals get cleaned out completely. If you have a good machine shop, you can get additional oil journals drilled into the crank. AFJ
__________________
Es geht nicht darum wie schnell man faehrt, sondern wie gut man schnell fahren kann. Ihr Brunnen der nutzlosen Porsche Information |
||
|
11-22-2005, 05:16 PM
|
|
|
Registered
Join Date: Aug 2001
Location: Brighton UK since 11/2012
Posts: 3,170
|
If the rod bearing has spun then the will likely be metal shavings throughout the engine. This means complete strip and cleaning is required. Including the oil cooler, whether the internal or external type.
It's usually cheaper to find another used engine and start from there.
__________________
From November 2012; Precision Porsche Specialist Sussex UK, +44 (0)1825-721-205 2001-2012 Gerber Motorsport Inc. 206-352-6911 07.15.06 1996 Ducati 900SP. Suprisingly enough, it's red 08.16.09 1999 Kawasaki ZRX1100. Green. |
||
|
11-22-2005, 06:03 PM
|
|
|
Politically Incorrect
Join Date: Aug 2005
Location: Hoover, Alabama
Posts: 1,494
|
If you have an engine problem, like a spun bearing, that generates little bits of metal, you might want to consider replacing the oil cooler and oil pump WHILE YOU'RE AT IT. I'm not exactly sure of the oil flow path, but I believe it's like this: The dirtiest oil (from the pan) is sucked up through the pickup screen, that may have a bypass hole/valve/flap thingy (like 'merican cars), then through the pump then through the cooler and finally the filter. The pump may be damaged and I don't think the screen and cooler can ever really be completely cleaned of said metal bits with just solvent because of all the nooks and crannies. I welcome anyone with more experience to please jump in with comments or suggestions to offset my residual newbieness - but I don't think I'm too far off the mark on this.
__________________
Edek '87 924S '91 535i |
||
|
11-23-2005, 09:35 PM
|
|
