TSB 09-05-00, Plenum Gasket Oil Leak (and additional info)
#1
05-22-2010, 07:11 PM
TSB 09-05-00, Plenum Gasket Oil Leak (and additional info)
From Silver_Dodge and master tech:
This bulletin involves the replacement of the engine intake manifold plenum pan gasket.
(A more permanent solution like the Hughes or APS plate is recommended in addition to this TSB.)
http://dodgeram.info/tsb/2000/09-05-00.htm
Although not a TSB, this goes hand in hand with TSB 09-05-00 above.
The Problem:
The plenum plate is a plate on the bottom of the intake manifold, which we call the "kegger" (because it looks like a beer keg cut in half). Dodge and their cost cutting measures made the plenum plate out of stamped steel and then mounted it on the aluminum intake manifold. Due to differences in how steel and aluminum expand and contract, over time, the steel plate will start to rip the gasket between the plate and intake manifold. This allows oil from the lifter galley to seep into the manifold and get sucked into the combustion chamber, causing misfires and pinging, and not to mention the loss of oil.
Another possible cause for this is the intake manifold bolts are rumored to be slightly to long, and don't tighten the plate properly against the intake manifold.
The Solution:
Due to the differences in aluminum and steel, we need to replace the steel plenum plate with an aluminum piece. Both Hughes Engines and APS Precision make new 1/4'' thick aluminum plenum plates. Both come with new hardware to put the plate in, and a new plenum gasket. APS kits come also with a bottle of Loctite and a inproved Mopar plenum gasket over the standard Fel-Pro gasket that Hughes includes. The choice of APS or Hughes is totally up to you.
The Parts:
Here is what is required when replacing the gasket with a Hughes or APS plate -
Plenum Plate - Hughes http://www.hughesengines.com/Index/products.php?partid=22220
or APS http://www.apsprecision.com/
Intake Gasket set w/bolts* - http://www.hughesengines.com/Index/products.php?partid=23039
Throttle Body Gasket* - http://www.hughesengines.com/Index/p...p?partid=24079
(It is recommended that when you do the plenum gasket repair that you do a tune-up (Plugs, wires, dist. cap and rotor), oil change, replace the thermostat and thermostat housing, running a can of Seafoam through the gas tank and through the motor, and replacing the front Oxygen sensor).
* These parts can also be purchased at your local NAPA or favorite auto parts store.
This bulletin involves the replacement of the engine intake manifold plenum pan gasket.
(A more permanent solution like the Hughes or APS plate is recommended in addition to this TSB.)
http://dodgeram.info/tsb/2000/09-05-00.htm
Although not a TSB, this goes hand in hand with TSB 09-05-00 above.
The Problem:
The plenum plate is a plate on the bottom of the intake manifold, which we call the "kegger" (because it looks like a beer keg cut in half). Dodge and their cost cutting measures made the plenum plate out of stamped steel and then mounted it on the aluminum intake manifold. Due to differences in how steel and aluminum expand and contract, over time, the steel plate will start to rip the gasket between the plate and intake manifold. This allows oil from the lifter galley to seep into the manifold and get sucked into the combustion chamber, causing misfires and pinging, and not to mention the loss of oil.
Another possible cause for this is the intake manifold bolts are rumored to be slightly to long, and don't tighten the plate properly against the intake manifold.
The Solution:
Due to the differences in aluminum and steel, we need to replace the steel plenum plate with an aluminum piece. Both Hughes Engines and APS Precision make new 1/4'' thick aluminum plenum plates. Both come with new hardware to put the plate in, and a new plenum gasket. APS kits come also with a bottle of Loctite and a inproved Mopar plenum gasket over the standard Fel-Pro gasket that Hughes includes. The choice of APS or Hughes is totally up to you.
The Parts:
Here is what is required when replacing the gasket with a Hughes or APS plate -
Plenum Plate - Hughes http://www.hughesengines.com/Index/products.php?partid=22220
or APS http://www.apsprecision.com/
Intake Gasket set w/bolts* - http://www.hughesengines.com/Index/products.php?partid=23039
Throttle Body Gasket* - http://www.hughesengines.com/Index/p...p?partid=24079
(It is recommended that when you do the plenum gasket repair that you do a tune-up (Plugs, wires, dist. cap and rotor), oil change, replace the thermostat and thermostat housing, running a can of Seafoam through the gas tank and through the motor, and replacing the front Oxygen sensor).
* These parts can also be purchased at your local NAPA or favorite auto parts store.
Last edited by jasonw; 05-26-2011 at 04:39 PM.