What is the primary difference between a Tecumseh H50 and H70? - Snowblower Forum : Snow Blower Forums
 
LinkBack Thread Tools
post #1 of 7 Old 02-03-2015, 12:07 PM Thread Starter
Senior Member
 
db130's Avatar
 
Join Date: Feb 2013
Location: MA
Posts: 722
Post Thanks / Like
Thanks (Given): 15
Thanks (Received): 64
Likes (Given): 204
Likes (Received): 139
What is the primary difference between a Tecumseh H50 and H70?

I have a H70 longblock that does not have holes for the electric starter(even though the flywheel itself has teeth for the electric starter) -> it may be a mutt.

I may be able to get my mitts on a H50 longblock that does have the starter holes. What's would be the easiest way to make a good H70 out of the 2 engines?


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by db130; 02-04-2015 at 03:35 PM.
db130 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 02-03-2015, 12:35 PM
Senior Member
 
Join Date: Nov 2011
Location: Madison, WI
Posts: 407
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 29
Likes (Given): 1
Likes (Received): 66
Others will have to give you the specifics.. But this I know- The starters are not interchangeable. I 'think' The bore on 5hp is smaller than 7hp- but that is to be verified by the more knowledgeable. Aren't I just a bundle of help.
Geno is offline  
post #3 of 7 Old 02-03-2015, 03:11 PM
Senior Member
 
scrappy's Avatar
 
Join Date: Dec 2014
Location: New Jersey
Posts: 537
Post Thanks / Like
Thanks (Given): 6
Thanks (Received): 39
Likes (Given): 36
Likes (Received): 91
H5 and H6 have the same bore size. The 6 has a 1/4in longer stroke.

The h7 has both a larger bore than the 5 &6 with an even longer stroke.

So really the only thing you could do is make a 5hp block into a 6hp with a new crank/rod and possibly a piston change.
scrappy is online now  
post #4 of 7 Old 02-03-2015, 06:42 PM Thread Starter
Senior Member
 
db130's Avatar
 
Join Date: Feb 2013
Location: MA
Posts: 722
Post Thanks / Like
Thanks (Given): 15
Thanks (Received): 64
Likes (Given): 204
Likes (Received): 139
Upon further review by the seller, it turns out he actually has a H70 for sale and the block has the starter holes on the block. Guys, I appreciate the quick feedback. I think I'm going to pick it up.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
db130 is offline  
Post Thanks / Like - 1 Thanks, 0 Likes, 0 Dislikes
Thanks Duff Daddy thanked for this post
post #5 of 7 Old 02-04-2015, 11:13 AM
Senior Member
 
Duff Daddy's Avatar
 
Join Date: Sep 2014
Location: Boston
Posts: 261
Post Thanks / Like
Thanks (Given): 80
Thanks (Received): 17
Likes (Given): 2
Likes (Received): 15
**** I have been looking for an H7 for a few weeks on craigs list now

96 Mustang - Race car
2005 Mustang - Daily Driver
15 Grand Cherokee Altitude - Mall Crawler
2007 Anderson Open Deck 19ft Trailer
1998 828D John Deere
1996 828D John Deere
2015 D110 John deere
ST724 Ariens not sure of year
1978 Ariens 924000
1964 10ML60D
Duff Daddy is offline  
post #6 of 7 Old 02-04-2015, 11:22 AM
Sid
Senior Member
 
Join Date: Jan 2014
Location: LI NY
Posts: 497
Post Thanks / Like
Thanks (Given): 10
Thanks (Received): 23
Likes (Given): 28
Likes (Received): 33
Does the H70 have the "bosses" [ spots where the holes should be on the block?] If so you could drill and tap holes for the starter. Some starters might need to be shimmed out with a washer or two to make them work. That was my experience.
Sid
Sid is online now  
post #7 of 7 Old 02-04-2015, 12:01 PM Thread Starter
Senior Member
 
db130's Avatar
 
Join Date: Feb 2013
Location: MA
Posts: 722
Post Thanks / Like
Thanks (Given): 15
Thanks (Received): 64
Likes (Given): 204
Likes (Received): 139
no bosses. the flywheel cover even has the telltale holes where the switch for an electric starter was once mounted, but the block cannot accommodate an electric starter:



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
db130 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Snowblower Forum : Snow Blower Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome