Stihl SH55 Blower Engine Tear Down - HobbyTalk
HobbyTalk Forum for Diecast Collectors, Modelers, Slot Cars, & Radio Control
Home Forums Photo Album RC TrackFinder Catalog Donation/HobbyTalk Supporter

Welcome to the HobbyTalk forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, view attachments, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us. Forgotten your password? Click here!

NOTE: Once you register and are logged in this welcome section will no longer be visible.

Go Back   HobbyTalk > Small Engine Repair > Small Engine Repair 2-Cycle
Register Classifieds Help/TOS Members List Calendar Mark Forums Read

Thread Tools
Old 01-28-2010, 06:38 PM
Captgerryf Captgerryf is offline

My Photos
Join Date: Jan 2010
Posts: 12
Stihl SH55 Blower Engine Tear Down

Went ahead with the tear down of the Stihl SH55 Blower engine without an exploded view because these documents are apparently closely guarded secrets by Stihl and their dealers.

Found out that the needle bearings where the piston rod attaches to the crankshaft had come out of the bearing housing and locked up the piston. No scoring to the walls of the head, but will have to replace the piston, rings, piston rod and bearing.

Does anybody know if these come as a unit or as separate parts? What can I expect to pay for the entire set up?

What is the best way to get the rod off of the crankshaft? It looks like I have to remove at least one of the crankshaft bearings in order to drive out the pin that secures the piston rod to the crankshaft? Is that correct?

What is used as sealant between the top and bottom halves of the crankshaft casing. It looks like some type of grey sealant and it probably needs a light coating on the face of the joint between the top and bottom halves before I put it back together?

Thanks for any help.
Reply With Quote
Sponsored Links
Old 01-28-2010, 06:48 PM
geogrubb geogrubb is offline
Elder Statesman

My Photos
Join Date: Jul 2006
Location: Missouri
Posts: 1,690
First, welcome to the forum;
If you will send me your email address by PM (personal message) I will send you the info you need. Have a good one. Geo

Last edited by geogrubb; 01-28-2010 at 06:52 PM..
Reply With Quote
Old 01-28-2010, 09:46 PM
30yearTech's Avatar
30yearTech 30yearTech is offline
Top Dog

My Photos
Join Date: Sep 2006
Location: Central Texas
Posts: 6,032
The crankshaft and connecting rod is a complete assembly. You cannot separate the halves and service the crank pin or rod. They can be pretty expensive, so make sure everything else is still good before you replace the parts. You may want to check and see if a short block is available, as it may be cheaper then replacing the crankshaft, piston and rings.
Reply With Quote
Old 01-29-2010, 12:26 AM
rotti1968 rotti1968 is offline

My Photos
Join Date: Apr 2009
Posts: 333
The cost of the parts will exceed more then half the cost of a new unit to repair . i wouldnt put any time or money into this if this came into our repair shop for repair, i would advise the customer to buy a new unit from us and poss offer a trade in credit. we are a full line stihl dealer and those units other then minor repairs are just not cost effective to sink money into.
They use a product called dirko as the sealant on those halves.If that bearing failed on this unit more then likely the crank seals failed and caused the damage. I would guess it was the fan side seal as these are the ones under the most stress. the crank shaft alone retails for $101.00 approx. that does not include your piston,rings,crank bearings and seals your looking around another 70.00 to 80.00 in those parts to approx.They dont offer a short block for this unit.
Reply With Quote
Old 01-29-2010, 07:34 AM
Captgerryf Captgerryf is offline

My Photos
Join Date: Jan 2010
Posts: 12

Thanks for all of the replies. Made my decision a lot easier to toss this out. I hate when the cost of replacement parts force us to become part of a "throw away society".

Got the unit from my brother and figured I might get it running again, but not at the prices you have listed.

Guess I'll stick with my Echo backpack blower although this would have been a nice backup blower for those small jobs in tight places.

Thanks again.
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

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

Forum Jump

Featured Sponsor
You Can Sponsor
A HobbyTalk Forum

HobbyTalk® Sponsors
Collectables Corner
DieCast Alley
Global Diecast Direct
Mini-Motors Inc
The Toy Peddler
Toy Car Aution
Modeler’s Brand
ParaGrafix Modeling Systems
TenaControls, LLC
Radio Control
B-Fast RC
Dirt Cheap RC
Discount RC Tires
Irrgang Racing Service
Lefthander RC
P1 Hobbies
SMC Racing
Thunder Racing
Trend Times
TQ Racing
Windtunnel Racing
Slot Cars
AFX Racing
Slot Magazine
Sponsored Events

Become a
HobbyTalk® Supporter

Advertise on HobbyTalk®

Powered by vBulletin®
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
All times are GMT -4. The time now is 05:39 PM.
HobbyTalk® is a Registered Trademark of HobbyTalk Ltd.
All other logos and trademarks on this site are property of their respective owner.
Advertising positioning by Digital Point