Murray 18/46

Replaced the relay only to find it was good.  I suspect there was a grounding problem.  The new relay (12.5/40) has a busted off post on the cable to the starter.  The cable eyelet is under what was the bottom nut.  If this works long term the removed relay is a spare.

The yellow wire goes to the seat switch interlock.   I have doubts that it should be connected to the battey as it grounds out the coil.

Need to replace the shroud.  Air cleaner bolt that holds the cover is broken.

Wednesday, December 16, 2015


Did that but it did not fire.  Did give me a shock!  It is only 30F so not too suprising.  Should replace the dip stick seal.

Murray 18/46 on Youtube

Found this video.  But vids go away so I took a few stills.

Murray 18/46

Swapped in the ignition switch from the 12.5/40.  No joy. Next we try swapping out the relay.

Found a wiring diagram that could be correct for this tractor. link

Because the solenoid is not operating I need to check the switches on the clutch and PTO because they pass the signal from the key switch to the solenoid.

Murray 18/46

The tractor would not start because of a non working starter.  The guys on M.O.W informed me that it would come off without pulling the flywheel.  It did.

The starter was in very good shape just dry and dirty. Starter gear looks good.

Fired the engine with carb cleaner and it sounded good.  Much better than the 18HP on the 14.5/42. Maybe it just has a better muffler?

Tomorrow I will take a look at the fuel system.  Maybe get it running.  Hope it does not need a motion belt too but I think that is the case.  Thinking about that I should take a look so I can get it ordered if need be.

Monday, September 21, 2015

Could not sleep so played from 4 to 6AM.   Could not find the electric impact so I pushed the tractor to the other shop and used air impact to tighten the flywheel nut.  Later I found the electric impact in the tool cabinet.  I don't normally store it there so..

Moved on to the carb.  This carb does not look like it is 18 years old.  Pulled the top which you can do with the base still on the tractor.  Some crud in the bow.  Needle valve seems gummy.  Cleaned the bowl with carb cleaner.

Given that it had carb problem I think I will take it all the way off and run it through the ultrasonic cleaner.






















Pulled the fuel pump.  One of the little springs is missing.  Time for a pump rebuild kit.

Sept 30

Adding the missing springs did not help either tractor.   So time to do a good carb clean.

Hi-Run WD1138 ReplacementTire, 20X10.00-8 4PR have arrived

Ordered 3 of these tires from TSC.  Two for the DYT4000 and 1 to mate with the one from DYT that still holds air.  This mis matched pair may be used on the Murray 46/18 if it comes to life.

I was thinking they would have been a bit stiffer but they are as flabby as most 2 ply.  Having trouble getting them to inflate once mounted.

Cut sticks to hold the sidewalls out.  After resting this way for 2 days the can be mounted.  Tried twice at one day and it did not work.

Unfortunately they are smaller than the Carsile with the same size numbers.  But still good tires at under $50 and they do say they are 4 ply.

This is a comparison between the 20x10x8 Carsile Turf Master and the tires on the rear of the Murray 14.5/42.

14.5/42 with one new tire.  The other wheel got the 20x10x8 that came with the DYT4000.  A little mismatched but not bad.

But his rear end is now making noise.  I don't recall if it started with the tire change.  Should put the small ones back on to see some time.

The DYT4000 got 2 of these new   tires.

Murray Madness and Deck Repair

Found a hornet/wasp nest behind the 18/46's gas tank yesterday.  We killed them with spray and today I took both the 14.5 and 18/46 to the car wash.  The looked much better when wet.  Maybe a wax job some time down the road.


The 14.5 goes to the shop shown above to have its engine removed.   The 18/46 goes to the other shop with the air compressor to continue trying to remove the flywheel.   The starter has failed and need to be removed and fixed.  One bolt is under the flywheel.

The axle bushing is shot on the 12.5/40 so I am going to move the 18HP twin from it to the 14.5/42.   I have the decks off both because I had intended to use the 42 inch deck on the 12.5/40.  In time I plan to fix the axle bushing and repower the 12.5/40 with a single cylinder engine so it can be used with its hood.

The 42 inch deck needed some welding.  Other than the damage to the edge the deck is in overall good condition including the spindles.

There was a break at the discharge chute .  A bit of hammer and dolly work put the metal back where it belonged so I could weld it.

I used the HF 90 Amp flux core for this.  Worked well considering I do not know how to weld.

Rode hard and put away wet.

I used rebar to reestablish the edge of the deck,  To weld this I used the HF welder and should have used the stick welder.

 Need to take more pictures.

Two Hydrostatic Murray's 14.5/42 and 18/46

Picked up two hydrostatic Murrays.  A 14.5 HP OHV 42910X92A and a 18HP opposed twin 46904X92A.  Neither have hoods and the 14.5 is missing its seat and air cleaner.  The twin is said to run but has carb problems.  Local mower repair guy said the most recent owner is hard on equipment.





I don't know much more than that at this point.  Both engines seem to turn over and have compression.

Images from the web.  An example of an 18.46

An example of a 14.5/42