Engine Questions


Old 04-04-02, 07:25 AM
J A Boggan
Visiting Guest
Posts: n/a
Question Sears mower

I have several questions; I have a Sears (Tecumseh) engine; model number 143.975506 5.5hp Eager 1. Can anyone tell me the equivalent Tecumseh model number for this engine. What are the correct intake and exhast valve clearances. Also, how critical are these settings.
Sponsored Links
Old 04-04-02, 07:59 PM
Sharp Advice's Avatar
Admin Emeritus
Join Date: Feb 1998
Location: The Shake and Bake State USA
Posts: 10,440
Hello: J A

There isn't much info provided here as to why the valve settings are being requested? Are you rebuilding the engine?

The valve clearances are extremely critical. If there isn't any real need to adjust them, best not to. Mower engines can run their entire service life without any valve adjustments needed.

Small Engine Forum Moderator
Tom_Bart.....TCB4U2B2B.....Company Enterprises.
Personal Quote:
"If it ain't already broke, don't fix it, tinker with it or $#@&*&%$#@! with it until you do break it!"
Old 04-05-02, 03:04 AM
J A Boggan
Visiting Guest
Posts: n/a
Exclamation Sears mower

I was requesting the information because I have completely rebuilt this engine. I had to reface the valve seats, grind the valves and lap the valves. The mower is newer than I have information on, but with my older information, the best I could tell the clearances were 0.008". Anyway, I set them at this and the engine runs fine. Thanks for your replay.
Old 04-05-02, 06:33 AM
Visiting Guest
Posts: n/a
Give Tecumseh an e-mail and they should be able to tell you in a jiffy.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes