My Tractor Forum banner
Cancel

does a briggs 18 hp twin have a compression release?..can it fail?..

6019 Views 5 Replies 4 Participants Last post by  searstractorfan, 
E
first...forgive my lack of knowledge!...does a briggs 18 hp twin have a compression release??...I have read that some engines have some sort of small valve compression release...and that some others have a lobe on the camshaft...do they fail??...the valve kind seems like it could fail..but can the lobe kind fail?....how would I know if my engine has a compression release without taking apart? Your knowledge would be appreciated..thanks..
Reply
Save
Like
1 - 6 of 6 Posts
LLigetfa
The camshaft lobe type can fail one of two ways. One failure is excessive valve lash that won't let the lobe work and the other failure is the actual lobe wearing down. Lash adjustment is an easy fix but lobe wear requires a new cam.

Are you having cranking problems and if so have you ruled out hydro-locking?
Reply
Save
Like
W
"does a briggs 18 hp twin have a compression release??..."
"how would I know if my engine has a compression release without taking apart?"

One way would be to post the model number of your engine as there are multiple B&S twin cylinder engines with different configurations.

"Lash adjustment is an easy fix "

I think it depends on WHICH engine he has whether it is an "easy fix".

Walt Conner
Reply
Save
Like
searstractorfan
uhm Im wanting to say it doesnt...I can ask my buddy he has the briggs flat head twin manual, unless your briggs is a vangaurd...
Reply
Save
Like
W
"uhm Im wanting to say it doesnt...I can ask my buddy he has the briggs flat head twin manual, unless your briggs is a vangaurd... "

As i said, we need to know WHICH engine he has, model number.

Walt Conner
Reply
Save
Like
searstractorfan
Yes walt2002 but I dont think the vanguard engines even have one. as along with the flat head opposed twins...I dont no of to many modern day engines that have a true compression release...my command kohlers have nothin of the sort on the cams...I have been wrong in the past so please someone correct me!!!
Reply
Save
Like
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
My Tractor Forum
A family friendly forum community dedicated to all Tractor owners and enthusiasts. Come join the discussion about specifications, modifications, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
John Deere Forum Craftsman/Sears Forum Backyard Round Table: L & G Tractor Related Topics Introductions Walk Behind Mowers
Top