hurstscrambler Posted August 5, 2017 Share Posted August 5, 2017 I have a 1968-1969 Cummins NHCT-270 in an off-brand truck, it seems to have a regular old PT pump on it. The factory mechanical tach is junk and I would like to get a new Stewart-Warner to replace it. Is there any way to tell if I need the 1:1 type or the 1:5 ratio? I'm totally clueless as to how I would figure this out so, I'm hopeful that someone here has run into this. Thanks in advance, Andy Quote Link to comment Share on other sites More sharing options...
j hancock Posted August 6, 2017 Share Posted August 6, 2017 IDK, if no one else chimes in, try Mahoney's in NH 603-642-8483. They used to advertise still having parts and knowledge for older Cummins and PT pumps. Quote JimIt doesn't cost anything to pay attention. Link to comment Share on other sites More sharing options...
hurstscrambler Posted August 14, 2017 Author Share Posted August 14, 2017 I'm glad you brought them up, I will probably give them a ring next week. I was trying to remember them before, when I was after parts. They seemed to be a good, old school shop. I may bring the truck up there when it's done and have them check the engine over. Thanks, Andy Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.