I have had poor shutdown on my 300CD for a while until I found that the vacuum take off from the brake booster vacuum line was virtually blocked. The brake booster worked fine (indicating good vacuum, so with the vacuum poor (vacuum gauge in instrument panel) it only left the off take being blocked as the cause of poor ancillary vacuum. While trying to remove the vacuum hose from it, I broke off the hose barb.
I fabricated a reducing Tee from readily available brass fittings and installed it in the main vacuum line and connected the vacuum ancillaries to it. The shutdown is immediate, the vacuum accessories work correctly, including the HVAC Vacuum pods and the seat back locking vacuum pods (on the passenger side only - I need to investigate this soon).
Here is a photo of the Tee installed in the vacuum line. Sorry for the poor focus.
The tee was made from a 12mm * 10mm reducing Tee and a 3mm * 8mm in line reducer. The 8mm end of the inline reducer was a close fit inside the 10m leg of the reducing Tee. A little bit of silver solder and it was made. Total cost around $15 including silver solder and gas.
I fabricated a reducing Tee from readily available brass fittings and installed it in the main vacuum line and connected the vacuum ancillaries to it. The shutdown is immediate, the vacuum accessories work correctly, including the HVAC Vacuum pods and the seat back locking vacuum pods (on the passenger side only - I need to investigate this soon).
Here is a photo of the Tee installed in the vacuum line. Sorry for the poor focus.
The tee was made from a 12mm * 10mm reducing Tee and a 3mm * 8mm in line reducer. The 8mm end of the inline reducer was a close fit inside the 10m leg of the reducing Tee. A little bit of silver solder and it was made. Total cost around $15 including silver solder and gas.
Comment