Re: What is this?


[Follow Ups] [Post Followup] [Dodge Power Wagon Forum]


Posted by Paul (in NY) on Sunday, August 10, 2003 at 10:13PM :

In Reply to: Re: What is this? posted by Todd Wilson on Sunday, August 10, 2003 at 9:12PM :

Nope....heat exchanger off the pump to help cool the engine coolent. Early Fire Engines
did not run heat exchangers, rather ran a little water off the pump right into the cooling system to help cool. Radiators had a overflow to dump extra water. We had a 1929 Sanford with a Waterous 500 gpm rotary gear pump. It had extra cooling as above.
Modern equipment run stainless marine heat exchangers.

The purpose of injecting a small amount of oil in a rotary gear priming pump is to help better provide positive displacement. As the water mixes with the small amount of priming oil, at the discharge, you will see a milky/foam discharge from the priming pump. The oil has done its job before it is milky/foamy. Exhaust priming does not use oil injection.

Paul




Follow Ups:



Post a Followup

Name:
E-Mail:
Subject:
Message:
Optional Link
URL:
Title:
Optional Image Link
URL:


This board is powered by the Mr. Fong Device from Cyberarmy.com