Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Visit our tractor and agricultural equipment communities:
Ingersoll Forum
Case IH Forum
Combine Forum
Hay Forum
JCB Forum
John Deere Forum
Kubota Forum
Mahindra Forum
Massey Ferguson Talk
New Holland Forum
Valtra Forum
Yanmar Forum
Zetor Forum
Farming Forum
Forums
Other Brand Skidsteer Forums
New Holland Skidsteer Forum
LX565 Erratic Engine RPM on Shibaura N844
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support SkidSteer Forum:
Message
<blockquote data-quote="elmouca" data-source="post: 133921" data-attributes="member: 19336"><p>I've been experiencing erratic engine speed under load on my LX565 with N844 engine. I finally figured it out but it took much longer than it should have. Below are my steps to help others trouble shoot.</p><p></p><p>1. Possible fuel / air delivery problem:</p><p>a. Replaced both fuel filters</p><p>b. Checked air filter and intake for obstruction</p><p>c. Added fuel pressure gauge to output of lift pump to monitor pressure during abnomaly</p><p>d. Inspected throttle linkage</p><p></p><p>2. Verify Governor Operation</p><p>a. Governor linkage internal to engine</p><p>b. Remove front engine cover with DIY puller to remove crankshaft pulley. There are some hidden retaining bolts on cover, so be mindful if it doesn't come off easily.</p><p>c. Inspect governor linkage </p><p>d. Some wear observed but not enough to validate syptoms - Replaced governor components despite no obvious cause</p><p>e. Re-assemble </p><p>f. Installed new oil seal for crankshaft with 3D printed seal driver.</p><p>g. Found Max Fuel Adjuster and Max RPM Adjuster to have been tampered with. Not field serviceable and must be replaced with sealed adjusters. Decided to reset both adjusters to the middle of the range instead of replacement.</p><p>h. Packed oil pump with assembly lube</p><p>i. Installed painted front engine cover. It is a bit tricky to align the oil pump into the pin in the engine cover. </p><p></p><p>No more erratic engine speed following repair. Unknown what was the root cause but the Max Fuel Adjuster and Max RPM adjust should not have been tampered with. If anyone needs the drawing for the puller or seal driver, please let me know.</p></blockquote><p></p>
[QUOTE="elmouca, post: 133921, member: 19336"] I've been experiencing erratic engine speed under load on my LX565 with N844 engine. I finally figured it out but it took much longer than it should have. Below are my steps to help others trouble shoot. 1. Possible fuel / air delivery problem: a. Replaced both fuel filters b. Checked air filter and intake for obstruction c. Added fuel pressure gauge to output of lift pump to monitor pressure during abnomaly d. Inspected throttle linkage 2. Verify Governor Operation a. Governor linkage internal to engine b. Remove front engine cover with DIY puller to remove crankshaft pulley. There are some hidden retaining bolts on cover, so be mindful if it doesn't come off easily. c. Inspect governor linkage d. Some wear observed but not enough to validate syptoms - Replaced governor components despite no obvious cause e. Re-assemble f. Installed new oil seal for crankshaft with 3D printed seal driver. g. Found Max Fuel Adjuster and Max RPM Adjuster to have been tampered with. Not field serviceable and must be replaced with sealed adjusters. Decided to reset both adjusters to the middle of the range instead of replacement. h. Packed oil pump with assembly lube i. Installed painted front engine cover. It is a bit tricky to align the oil pump into the pin in the engine cover. No more erratic engine speed following repair. Unknown what was the root cause but the Max Fuel Adjuster and Max RPM adjust should not have been tampered with. If anyone needs the drawing for the puller or seal driver, please let me know. [/QUOTE]
Verification
Post reply
Forums
Other Brand Skidsteer Forums
New Holland Skidsteer Forum
LX565 Erratic Engine RPM on Shibaura N844
Top
