Swapping Tecumseh carbs

Reply

  #1  
Old 05-06-14, 07:29 AM
Member
Thread Starter
Join Date: Sep 2013
Location: USA
Posts: 39
Swapping Tecumseh carbs

Hi, I've got a Tecumseh LEV80 3.5 hp lawnmower. It requires a carburetor Tec-640270. I would like to know if I could substitute a Tec-640271 carb. (I can get the Tec-640271 a lot cheaper). They look pretty much the same and use mostly the same parts except the Tec-640271 has a carburetor tube (not the emulsion tube) sticking through the air intake throat side of the carb and also there is a fitting on the top of the carb right at the air intake side of the carb. The Tec-640270 doesn't have these. What is the purpose of that carb tube and that fitting on top of carb? As long as the carb physically matches up and bolts in place, will it work? Thank you.
 
Sponsored Links
  #2  
Old 05-06-14, 09:44 AM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 16,821
There is a lot more to a carb than bolt pattern. Throat diameter (CFM), jet size, throttle connections, etc... make a difference. I doubt anyone will know if you can put one in place of the other, as it's not something that there is a interchangeability guide for or anything like that. If they both are used on a similar sized engine, then chances are it will at least run if everything connects the same.
 
Reply

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