Tom, welcome to the Caterpillar family. Let me give you some advise in a very nice way. Today
service and repair shops in most cases do not have motorhome owner best interest at heart. This also is the trend of many opions on various forums. Let’s start with your Cat C-9 engine 400 hp and
has what is called a Heui injection system ( does not have an injection pump ). Your injectors are
actuated by high pressure engine oil that is in your oil pan. No injection pump or push rods that operate the injectors. The lack of formal training on this engine operation bring many unwarranted
comments from many mechanics. This is a very excellent engine and has a very good trouble free history in caterpillar view point. The Heui injection system is used on on road and off road equipment
with many thousands of hours of trouble service. Dave Atherton Retired Cat Mechanic
Thanks Dave,
I can't tell you how happy I am to have found you and the folks here.
I read about the fuel pump mod and it made sense to me. I talked to Holt of Sacramento about what the mod was, and the reasoning behind it, they thought I was crazy and told me that they would not do the work period.
I found a mobile mechanic in Placerville that calls himself Catmandoo. He works primarily on Cal Fire and Logging equipment in the area.
I sent him a link to your description of the mod and he thought it was brilliant. He did it for me in a couple of hours and the difference in the way the coach runs is incredible. Thanks for the advice and to everyone here.
Tom
