Also, The engine end of the tacho cable has a square key which slots into the oil pump tacho drive. These wear and then start slipping. If only the inner metal cable is worn just the cable can be replaced. If the oil pump drive fitting is worn it is a pain to fix and at this point you would be considering the electric tacho option. The instrument end can have the same problem with wear...especially if the metal inner cable hasn't been pushed all the way into the instrument. Sometimes they are just a little to short for the outer sleeve and only engage the instrument by a small amount. If it is the instrument that has worn consider moving to a much cheaper electric tacho. I am not sure if the instrument can be economically repaired or if the appropriate part is available.
Rob Thompson (GYT) ----- Original Message ----- From: Angel Jimenez Martin To: [email protected] Sent: Thursday, September 01, 2011 5:53 PM Subject: RE: [DOG mailing list] RPM oscilations Another problem has arisen, the rpm indicator, has begun to large oscillation especially at low rpm I removed the line and apparently is fine, only the part that connects to the indicator I found traces of a substance color like black rubber. Has this happened to someone who can help me?. I don't now when my old Dimona problems disappear. Angel -- Will Bignell PhD Candidate School of Agricultural Science Tasmanian Institute of Agricultural Research University of Tasmania CSIRO Food Futures Flag Ship M: 0418216780
