From:	Jeff Clark
Sent:	Tuesday, December 14, 2004 1:16 PM
To:	Bill Larch (E-mail); Bob Campbell (E-mail); Cathy Devlin (E-mail); Greg Shank (E-mail); Jeff Clark (E-mail); Jim Gutzwiller (E-mail); Jim Matasic (E-mail); Jim Moritz (E-mail); Jim Wells (E-mail); Keith Selby (E-mail); Ken Goshorn (E-mail); Mark Cooper (E-mail); Michael Minotti (E-mail); Pat Fetterman (E-mail); Riccardo Conti (E-mail); Ron Buck (E-mail); Scott Richards (E-mail); Steve Kennedy (E-mail); Wim Van Dam (E-mail)
Subject:	T-12 Minutes of November 23, 2004
Attendance - Ken Goshorn, Jim Moritz, Ron Buck, Bob Campbell, Jim Matasic, Riccardo Conti, Keith Selby, Wim van Dam, Jeff Clark, Pat Fetterman, Greg Shank, Scott Richards (via phone), Steve Kennedy

Membership - no changes.

Minutes of 11/17 - approved.

Review of Test Results - Greg Shank (presentation attached). During his presentation Greg indicated that the wear levels are similar to T-10, as the heavier EGR appears to be offsetting the ULSD fuel effects.

Procedure Review - draft 2 was briefly reviewed. Some changes during the review that will appear in Draft 3:
- the fuel supplier (Chevron Phillips) has been selected
- the part’s list was reviewed and some corrections were made
- Annex 5 was reviewed and settled on 

Intake Manifold Temperature - Riccardo Conti indicated that they have had trouble maintaining temperature through phase I. SwRI also indicated they have some intake manifold temperature control difficulties. Much lively discussion occurred considering the options of changing the set point or using different EGR coolers. XOM will be sending used EGR coolers to LZ, SR will be sending used coolers to PE. Mack will be sending new (different) EGR coolers to all five labs. The intent is to examine if the different EGR (30% increased capacity) coolers do not foul and therefore the intake manifold temperature can be more easily controlled during Phase I. Post meeting comment: Ken Goshorn indicated that the larger EGR coolers are not available as previously thought. Mack suggested using three of the current production coolers instead.

EGR Cooler Cleaning Procedure - SR has cleaned some coolers with soap and water, but they have not tested them.

Ring Wear Measurement Sub-Group Update - Ken Goshorn stated that the ring supplier’s methodology (PT3) traces the bottom side profile before and after test to calculate mass loss. The supplier does not want to release this technique. Ken is looking in to having them measure matrix rings pre and post matrix. Another method to be considered is an SAE standard, which would be the long-term option since the ring supplier will not be able measure wear on an on-going basis. Mack will consider internally how they would like to proceed and they report back to the group.

PC-10 Matrix Oils- the group unanimously approved recommending the use of 820-2 in the PC-10 Precision Matrix. Post meeting comment: This recommendation was accepted by the HDEOCP at the December 7, 2004 meeting.

Dyed Fuel - the group unanimously approved the use of dyed fuel for PC-10 ULSD. Post meeting comment: The HDEOCP approved the use of dyed fuel for all new PC-10 tests.

Next Meeting - to be determined; likely to be in San Antonio in January.

Regards,

Jeff Clark
Staff Engineer
ASTM Test Monitoring Center
6555 Penn Avenue
Pittsburgh, PA 15206
412-365-1032
412-848-8843 (cell)
jac@astmtmc.cmu.edu