DieselEngineTrader's FREE Diesel Engine Forums

new topic search Categories login View Yanmar Engines

Thread Title:

Low Oil Pressure 4TNE84-SA

Created On Sunday December 18, 2011 20:12 Diesel Talk
Diesel Talk Forum

Diesel Talk Forum
Posts: 1
Joined: Dec 2011

Note Sunday December 18, 2011 20:12 View thread in raw text format
Diesel Talk
I have a low oil pressure problem with my Mustang 2040 skid steer. The engine is a 4TNE84 Yanmar with 3600 HRS. The oil pressure light and buzzer are not always on, but rather flutter indicating almost low too almost good pressure. The oil level has always been perfect with 5W-40 Shell Rotella T6 synthetic oil. I have checked the pressure sensor and it is operating correctly. This problem has slowly gotten worse. Before, the oil pressure light/buzzer would flutter for about a few seconds after startup, then go away with no operation problems. Now the light/buzzer indicator are acting up more often. I am looking for advise to go forward in finding the problem. According to Yanmar engine troubleshooting the next step is adjust, check or replace the pressure control valve, however, i can not find that part in the parts diagram or its location in or on the engine. The engine does not act abnormal for the engine hours on it. Just a very, very small puff of white smoke at startup and on a very fast throttle up. This machine is not used every day. At most 1-2 hours a week. I would very much appericate any help in solving this problem. Thank you.
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum
Young & Sons Inc.
Young & Sons Inc.
Young & Sons Inc.
Luoyang Diron Parts Trading Co.,Ltd
Diesel Sales
Advertize on Diesel Engine Trader

Customer Testimonials


Subscribe to our mailing list to get all the latest DET news.as well as daily or weekly notifications of new engines and spare parts listings.

'Congratulations on your increasing traffic at web page. I keep several address slips I've made up for your web page and have had occasion to hand out 25-30 to persons needing an engine or having one to sell.'

Cal Harvey, Triangle Agriculture

'The engine was on other sites, but we received the most calls from DieselEngineTrader.com. We sold it to the first caller-from DieselEngineTrader.com. Also, there was a waiting list on the engine if the first sale fell through! Thanks for the great service!'

Fran Trapp, South Carolina, USA

'DieselEngineTrader.com is working good for us - we're selling engines worldwide!'

Mark Johnson, Bobby Johnson Equipment Co., Inc., Oil City, USA