Discussion:
Exhaust valve Failure

Please assist.
We have a truck with an ADE 409 diesel engine.
The engine was rebuilt about two months ago and did about 5000 km's.
Two days ago we had the valve clearance set at the agents.
This morning the engine was "locked"
After stripping we found the exhaust valve on No 3 damaged which in turn damaged the piston and sleeves.
Any suggestions, keep in mind it ran for two months and 5000 km's?
  • Posted 15 May 2015 08:13
  • By Mafish
  • joined 15 May'15 - 1 message
  • Cape Town, South Africa
Showing items 1 - 1 of 1 results.
i would be looking at the rebuilders for any warranty on this engine or the 'agents' that did the recent valve clearance settings.

something caused it to drop that valve which shouldn't of happened under normal conditions.
  • Posted 15 May 2015 14:34
  • By swoop223
  • joined 23 Mar'12 - 3,692 messages
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

UN Forklift FD30T-NJM1
HANGZHOU, Zhejiang, China
New - Sale
JLG G12-55A
Morgantown, Pennsylvania, United States
Used - Sale & Hire
Upcoming industry events …
November 4-6, 2025 - Jaarbeurs, Netherlands
November 14, 2025 - Melbourne, Australia
December 10-11, 2025 - Louisville, United States
Fact of the week
The word "robotics" was coined by Russian-born American science-fiction writer Isaac Asimov who first used the word in 1942 in his short story 'Runabout'. He characterised robots as helpful servants and as "a better, cleaner race."
UN Forklift FD30T-NJM1
HANGZHOU, Zhejiang, China
New - Sale
JLG G12-55A
Morgantown, Pennsylvania, United States
Used - Sale & Hire
Movers & Shakers
Kai von Berg Kai von Berg
VP sales Europe, EP Equipment Europe
Group president - Vancouver operations, Columbia Machine
Business development manager - UK, IRE, BENELUX, Tyri Lights
President and CEO, Wajax Corporation
UN Forklift FD30T-NJM1
HANGZHOU, Zhejiang, China
New - Sale
JLG G12-55A
Morgantown, Pennsylvania, United States
Used - Sale & Hire
Global Industry News
edition #1254 - 30 October 2025
In this week’s Forkliftaction News - As an industry, our focus is often on key economic indicators such as productivity and profitability, but we all know our sector simply wouldn’t exist without the skilled operators who bring the machinery to life... Continue reading
Editorial calendar - planned features
CONSTRUCTION FORKLIFTS
HANDLING GOODS IN THE COLD
LOADING/UNLOADING FREIGHT
BROWNFIELD AUTOMATION
FORKLIFT ATTACHMENTS
BATTERY AFFORDABILITY AND LIFETIME
FORKLIFT SAFETY