EGR removal for '85 California 300TD
EGR removal for '85 California 300TD
I have most of the engine conversion bugs sorted out from my conversion and am ready to start modifying the engine.
so I'm on to step 1.2 - EGR removal. (for testing purposes off course)
for those who don't know, EGR on the '85 Calif car differs from the earlier cars because it has the "vacuum amplifier" (#125) in the diagram that controls something on the 722.4 transmission. Also this model IP has a few extra inputs compared to the earlier ones (just on late MW pumps or are they all the same?)
The goal is to reduce the vacuum to a minimum.
- remove #60 - EGR pipe, actuator; cap manifolds appropriately
- unplug #71 - ARV
- remove control unit and associated wiring harness (will need to rewire tach,
boost aneroid switchover valve and misc other stuff that's included)
- unplug rack position sensor from wire harness
Still some questions:
This leaves me with a couple switchover valves and the vac amplifier for tranny which though simpler, will still be messy looking.
Do I need the vacuum amplifier?
Which parts of the MW pump do I need to keep hooked up?
'85 California EGR courtesy of Peach Parts
-Christian
Here is a diagram that I made up to remove the EGR and ARV vacuum line in a stock '85 300SD and 300D models. This leaves the transmission vacuum lines intact so it will have the same functionality as the factory.
As far as the MW concerned, just leave #64 unplugged.
.
You can always eliminate it all and revert to a pre-84 system.
(01-17-2010, 05:05 PM)DeliveryValve Here is a diagram that I made up to remove the EGR and ARV vacuum line in a stock '85 300SD and 300D models. This leaves the transmission vacuum lines intact so it will have the same functionality as the factory.
As far as the MW concerned, just leave #64 unplugged.
.
(01-17-2010, 05:05 PM)DeliveryValve Here is a diagram that I made up to remove the EGR and ARV vacuum line in a stock '85 300SD and 300D models. This leaves the transmission vacuum lines intact so it will have the same functionality as the factory.
As far as the MW concerned, just leave #64 unplugged.
.
So? How'd it go? I always envied how much faster my grandma's 84 is than my 85 california.
The first thing I did was follow these instructions and blocked my EGR, didn't notice much of anything. The evil trap ox has to go to see any gains....
(08-13-2011, 03:52 AM)freedivehi So? How'd it go? I always envied how much faster my grandma's 84 is than my 85 california.
(08-13-2011, 03:52 AM)freedivehi So? How'd it go? I always envied how much faster my grandma's 84 is than my 85 california.
Christian,
What's your plan on controlling the VNT? I have thoughts on using the rack position sensor (#64) and commissioning an electronics expert to control it.
.
(08-13-2011, 02:05 PM)DeliveryValve Christian,
What's your plan on controlling the VNT? I have thoughts on using the rack position sensor (#64) and commissioning an electronics expert to control it.
(08-13-2011, 02:05 PM)DeliveryValve Christian,
What's your plan on controlling the VNT? I have thoughts on using the rack position sensor (#64) and commissioning an electronics expert to control it.
(08-13-2011, 08:21 AM)led-panzer The first thing I did was follow these instructions and blocked my EGR, didn't notice much of anything. The evil trap ox has to go to see any gains....
(08-13-2011, 08:21 AM)led-panzer The first thing I did was follow these instructions and blocked my EGR, didn't notice much of anything. The evil trap ox has to go to see any gains....
(08-17-2011, 12:33 PM)freedivehi(08-13-2011, 08:21 AM)led-panzer The first thing I did was follow these instructions and blocked my EGR, didn't notice much of anything. The evil trap ox has to go to see any gains....
Ah yes the trap ox! Where might I find out about eliminating that sucker? Any good threads you could pass along?
(08-17-2011, 12:33 PM)freedivehi(08-13-2011, 08:21 AM)led-panzer The first thing I did was follow these instructions and blocked my EGR, didn't notice much of anything. The evil trap ox has to go to see any gains....
Ah yes the trap ox! Where might I find out about eliminating that sucker? Any good threads you could pass along?
(08-17-2011, 12:46 PM)DeliveryValve Easy, somewhat expensive and keeping the stock look way...
Trap Cat Bypass
The other way is to install Federal manifolds... preferably the non-EGR types. But you'll have to deal with air cleaner replumbing/modifications, reclocking the turbo if possible and oil line issues.
(08-17-2011, 12:46 PM)DeliveryValve Easy, somewhat expensive and keeping the stock look way...
Trap Cat Bypass
The other way is to install Federal manifolds... preferably the non-EGR types. But you'll have to deal with air cleaner replumbing/modifications, reclocking the turbo if possible and oil line issues.
(08-17-2011, 12:33 PM)freedivehi(08-13-2011, 08:21 AM)led-panzer The first thing I did was follow these instructions and blocked my EGR, didn't notice much of anything. The evil trap ox has to go to see any gains....
Ah yes the trap ox! Where might I find out about eliminating that sucker? Any good threads you could pass along?
(08-17-2011, 12:33 PM)freedivehi(08-13-2011, 08:21 AM)led-panzer The first thing I did was follow these instructions and blocked my EGR, didn't notice much of anything. The evil trap ox has to go to see any gains....
Ah yes the trap ox! Where might I find out about eliminating that sucker? Any good threads you could pass along?