Question about Riding Mowers & Garden Tractors

1 Answer

Bent pushrod on inlet valve,husqvarna rideon mower

What could cause the inlet valve pushrod to keep bending,it is a kawasaki 15hp engine,valve does not appear to be sticking as you can push it in by hand. does anyone have any idea what it could be ?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 48 Answers

It is one of two problems - your engine uses a cam with a plastic gear - this gear has a tendency to move - it will probably need replacement . there is also a chance that the valve seat is coming loose (overhead valve ) which keeps the valve open - check the distance of the valve stems to make sure they are both out the same distance if they are not then when you put a new pushrod in and adjust it the valve will be pushed too far and hit the piston in turn bending the pushrod

Posted on Oct 17, 2008

  • enginedoc Oct 17, 2008

    almost forgot ; theres a chance that the valve guide itself has moved outwards bottoming out the valve - make sure both sides are extended both the same amount

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I HAVE A 24 HORSE Poulan riding lawnmower pro that keeps bending the rods and it has no power. I was wondering if this could be a timing problem.


It a design problem. Where you adjust valves it happen. You need correct valve adjusted, check valve seats they can move. I've had mine 17 years. One problem, adjusted one valve to tighen. Bent a pushrod

Feb 25, 2016 | Poulan Riding Mowers & Garden Tractors

1 Answer

What would cause both pushrods on left cylinder to bend


One ting that cause a push rod to bend is a valve guide that work it way out causing bottoming the spring travel. I haven't seen this person but work with others on finding the problem.

It is strange that both bent would be bent; although a valve that broken free could this too. Since OHV valve guides are generally not available as a replacement part the only solution is to replace the head.

May 27, 2015 | Riding Mowers & Garden Tractors

2 Answers

14 hp kawasaki wont start but backfires through the carberator.


The timing chain has slipped a few link and is out of sync. This happens with a loose chain. Replace chain and re- align with the timing marks

Oct 18, 2013 | John Deere Riding Mowers & Garden Tractors

1 Answer

Battery will not take charge, but can jump start and it runs, but does not keep charge


Possible charging coil under the flywheel issue, or with the retifier, there is a tool called a negative shunt, this will quickly tell you if there is any charge to the battary from the engine

May 06, 2012 | Husqvarna 22HP VTwin Hydrostatic 42" Cut...

1 Answer

Does the spring loaded screw on the carburetor bowl on the 15hp liquid cooled engine adjust the float level?


No. A metal float is adjusted by slightly bending the small metal tangs on the float that hold the retaining pin as it hangs from the main carburetor body . If you feel the need to adjust the level of the float, your normal setting is with the float "level" in relation to the lower carburetor body. That is in it's raised position when it has sealed the fuel inlet by pushing the float needle all the way into it's seat; thus shutting off fuel flow into the bowl.

May 07, 2011 | kawasaki Riding Mowers & Garden Tractors

1 Answer

Engine runs fine til hot.


I think one of the intake valves, or a valve pushrod, is bent or warped. When the engine heats up, the metal expands and the valve starts sticking open. That would cause compression to be lost in one cylinder, reducing available power so things drag when you engage the blades. This would also causes air/fuel to be blown back through the intake. I think you'll need to take it to a small engine mechanic. Good luck! Please rate my solution if helpful, thanks.

Jul 11, 2010 | Husqvarna Lawn Tractor 48" Deck, 23 Hp,...

1 Answer

My lawn mower will not start, it has spark but 0 compression.


A bent or broken pushrod is just a symptom of a larger problem that is causing a valve to hit the piston (or vice versa). Since you say the valves open and close, it's probably not a bent valve shaft, and like you suggest, it's the valve timing which is controlled by the camshaft gear. No matter what, it's not a repair to tackle at home. If the mower's in warranty, take it back for a proper repair -- and consider trying a different shop than last time. If it's out of warranty, you might find a small engine mechanic that can fix it for less than the price of a new motor. Get a good estimate before you say yes.

Jul 02, 2010 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

2 Answers

Backfire - Husqvarna YTH20K46


I find my 2148 runs much happier on the medium grade shell than on the cheaper gas. I did have a nasty POW, which resulted in bent pushrods, or perhaps the bent pushrods caused the POW. After replacing the pushrods, and adjusting same, the backfiring stopped altogether. knock on wood. The 21 is a B&S engine which has a propensity to the bent pushrods. Fortunately for me, my neighbor is a wiz at those fine adjustments.

Mar 22, 2010 | Husqvarna 23 Hp 48" Deck Yard Tractor

1 Answer

Blowing fuses


try unplugging the pto, starting the mower and then engaging the blades. If it still blows a fuse the problem lies in the mowers wiring. If not the problem is the pto. Hope this helps

Jul 13, 2009 | Husqvarna Lawn Tractor 48" Deck, 23 Hp,...

2 Answers

Belts coming off rideon 970


Hello maryswe:

>>This Problem is Usually Caused by a Bad Belt, Pulley or Belt Guard.
>>Check the Belt, if the Belt is Good, then Make Sure All the Belt Guards are Set to within 1/4" from the Belt.
>>If the Guards are Set Correctly, then Check for a Bent Pulley.
You can View the Husqvarna Model List at this Site Addy, http://www.partstree.com/parts/ and Click on the Husqvarna Logo. Now Enter the Model Numbers in the Search Box on the Left and Click Go. Now Select the Model of the Equipment you Wish to View.
Please, Do Not Hesitate, If I Missed Something or you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance.
Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Be Safe and Be Happy. Thanks.

Good Luck

Respectfully

jbridger (John)

May 12, 2009 | Husqvarna Riding Mowers & Garden Tractors

Not finding what you are looking for?
Riding Mowers & Garden Tractors Logo

Related Topics:

228 people viewed this question

Ask a Question

Usually answered in minutes!

Top Riding Mowers & Garden Tractors Experts

Tim Whalen

Level 3 Expert

3056 Answers

Phil Walker
Phil Walker

Level 3 Expert

602 Answers

Wade Mobley
Wade Mobley

Level 2 Expert

448 Answers

Are you a Riding Mower and Garden Tractor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...