Ask Experts Questions for FREE Help !
Ask

16.5 briggs and stratton...murray riding mower 42 inch cut. no compression???

Asked May 11, 2012, 06:02 PM — 15 Answers
i have a 16.5 murray it will turn over but has no compression and is getting fire took the spark plug out and it dosent have any compression...can someone please tell me whats going on...i have never worked on one this is my first mower i bought and it was used dumb yes i know but please help!!!!!!!!

15 Answers
chriswilliams07's Avatar
chriswilliams07 Posts: 9, Reputation: 1
New Member
 
#2

May 13, 2012, 07:51 AM
could someone please tell me whats going on here
Helpful
ballengerb1's Avatar
ballengerb1 Posts: 25,644, Reputation: 11296
Home Repair & Remodeling Expert
 
#3

May 13, 2012, 07:54 AM


How are you measuring the compression?
Helpful
chriswilliams07's Avatar
chriswilliams07 Posts: 9, Reputation: 1
New Member
 
#4

May 13, 2012, 08:00 AM
Quote:
Originally Posted by ballengerb1 View Post
How are you measuring the compression?
just by hand i dont have any tools like that...
Helpful
ballengerb1's Avatar
ballengerb1 Posts: 25,644, Reputation: 11296
Home Repair & Remodeling Expert
 
#5

May 13, 2012, 08:15 AM


So your removed the spark plug and put your finger/thumb over the opening and when cranking you get nothing along the lines of compression, right?
Helpful
chriswilliams07's Avatar
chriswilliams07 Posts: 9, Reputation: 1
New Member
 
#6

May 13, 2012, 09:56 AM
right no kinda force at all but i kept the spark plug in the coil and put it up to metal and it had fire...just not any kind of compression...
Helpful
ballengerb1's Avatar
ballengerb1 Posts: 25,644, Reputation: 11296
Home Repair & Remodeling Expert
 
#7

May 13, 2012, 09:58 AM


Take a flashlight and look into the spark plug hole while someone else turns over the engine. Do you see the piston topping out inside with each stroke?
Helpful
chriswilliams07's Avatar
chriswilliams07 Posts: 9, Reputation: 1
New Member
 
#8

May 14, 2012, 04:55 PM
Quote:
Originally Posted by ballengerb1 View Post
Take a flashlight and look into the spark plug hole while someone else turns over the engine. Do you see the piston topping out inside with each stroke?
no it looks like it is stuck up if thats what im seein its about an inch or so away from the hole inside...
Helpful
ballengerb1's Avatar
ballengerb1 Posts: 25,644, Reputation: 11296
Home Repair & Remodeling Expert
 
#9

May 14, 2012, 07:28 PM
I think you threw a rod. Use a wooden dowel rod or something similar and see if you can push that piston down toward the crank. If you can and the engine shaft doesn't move the rod is gone. Was it like this when you bought it or did it run?
Helpful
cnmc2001's Avatar
cnmc2001 Posts: 4, Reputation: 1
New Member
 
#10

May 14, 2012, 08:41 PM
Quote:
Originally Posted by chriswilliams07 View Post
i have a 16.5 murray it will turn over but has no compression and is getting fire took the spark plug out and it dosent have any compression...can someone please tell me whats going on...i have never worked on one this is my first mower i bought and it was used dumb yes i know but please help!!!!!!!!
it could have a bad pistion ring or a scored cylinder see if you can see any marks on the pistion or cylinder and let me know what you find out my email is cnmc2001@yahoo.com
Helpful

Not your question? Ask your question View similar questions

 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Add your answer here.

Remove Text Formatting

Undo
Redo
 
Decrease Size
Increase Size
Bold
Italic
Underline
Align Left
Align Center
Align Right
Ordered List
Unordered List
Decrease Indent
Increase Indent
Insert Email Link
Wrap [QUOTE] tags around selected text
Wrap [CODE] tags around selected text
Wrap [HTML] tags around selected text
Wrap [PHP] tags around selected text
Wrap [YOUTUBE] tags around selected text
Notification Type:



Check out some similar questions!

Snapper riding mower with 10.5 hp briggs & stratton mower [ 1 Answers ]

What is the single wire on the throttle control plate for

wiring 14.5 hp briggs and stratton riding mower from 18 hp briggs [ 1 Answers ]

How do you wire 14.5 hp briggs and stratton riding mower when changing it from a 18 hp briggs?

Scotts riding mower 17hp 42 inch cut keeps stalling [ 1 Answers ]

I own a 5 year old scotts riding mower 17HP 42 inc. The mower keeps stalling when I engage the lever for cutting operation. It usually takes me about 5-10 minutes to get it running then seems to be OK. There seems to be a problem with the clutch pedal, but I don't know if this is the problem. I...

Murray Lawn Mower 46 inch cut. [ 1 Answers ]

How to change pulley?


View more Tools & Power Equipment questions Search