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"There are no leaks and the machine functions perfectly. " If there is air in the hydraulic oil, it would not perform as the OP stated - got to be something else. :devilish:

"... started noticing oil venting from the tank cap at a pretty good rate" . I ASSUME (??) that this is the transmission hydraulic oil ???? If so the oil is getting hot & expanding. The extra volume of oil is venting, as it must do. The only ways I can think that this could occur is: Wrong...

From Google; "...... the Vanguard Big Block (810cc to 993cc) is widely considered the quietest and smoothest running engine in its class. [1, 2] The Evidence: Decibel testing reveals a noticeable difference. For instance, in head-to-head real-world tracking, a Vanguard 40 hp EFI engine...

Yes I always use ear protection - Crazy if you don't unless reread profoundly deaf. Still, given the option, I would like to start with quieter mower. :devilish:

When considering, zero turn mowers, with the larger petrol engines, 27 hp and up, which tend to be quieter; Kawasaki ? Kohler ? Honda ? Briggs & Stratton (Vanguard) ? :devilish:

I have ordered the new oil filter so should be replacing the oil early next week - How much effort should I put into removing the old oil ie is it necessary/desirable to try & drain the pumps & motors?? OR Is the amount of old oil (unknown type) remaining such a small percentage, that it will...

Thanks Auto Doc/ StarTech, My origination choice (before confusion set in) was a Full Synthetic + Zinc 15W/50 however the Full Synthetic + Zinc 15W/60 (same oil company) is "On Special Sale" for a lot cheaper. Other than cost saving, I also thought that the higher viscosity may be beneficial...

Hi Auto Doc, Dont know if its the Video or something else but it was almost unwatchable due to advertising breaks. That aside - Zinc would certainly seem to have significant wear reduction characteristics. Remembering that this is an old machine with unknown oil in the hydraulic system (some...

Managed to get into "Bob the Oil Guy" website. If anything it posses more questions than answers. :devilish:

Hi Auto Doc, Thanks for the above however you haven't actually commented on straight 20W/50 motor oil V a synthetic 15W/50 with Zinc. I tried to register on the "Bob the Oil Guy" website - ran into problems, so at the moment unable to discuss the options with Bobs members. Also having...

Totally confused; My local Hustler dealer says I should not use an oil with Zinc additive but recommends a synthetic in the hydraulic transmission. (Both of the oils, mentioned above, have Zinc) The various oil manufactures technical advisors say that this older Hydro Gear system and I...

I have no less than three Mr Funnels - small, medium & large. The first two use a single filter, the last, two filters. Reason for so many is that the small is used on my mowers/stationary engines and the medium /large on my home built aircraft. The small accommodates low fuel flow for small...

Went for the first "drive" this afternoon - transmission works just like new. Will now replace hydraulic filter PN 783936. For the oil I am leaning towards B&S Vanguard Full Synthetic 15W/50 OR Penrite Full Synthetic HPR 15, 15W-60 (best price) Any comments? :devilish:

The photo is identical to mine but not my mower. Mine is aesthetically very poor - will look better when I get the project finished. My thanks to Star Tech, the numbers provided will help me get past this problem. :devilish:

Sorry ILENGINE if I had that information I would have used it myself. For some strange reason both Hustler & Kohler use stick on Model/Serial Number Labels, rather than punching the details into into metal (like B&S & others do) or using a metal label, riveted to engine/frame (even chainsaws...

Hi, Hustlers Super Z, 60" Having trouble finding : Part Number for the Muffler - I am told its a Hustler part, not a Kohler. Alternative to the original part. The original is a vertical muffler with one inlet hole and one exit. Similar (not the same) in appearance to this Kawasaki; I can...

Not helpful - Read my last posr. Thank you in advance for whatever information (Model Number of Muffler Part Number) you are able to provide.

I don't have the Hustler or Kohler Model or Serial Number of my barn find. The engine may be a Kohler CV 745 (FI) 27-30 hp. The back end of my machine is identical to the above photo. I need to replace the muffler. As far as I understand, it's Hustler part NOT a Kohler BUT because I have no...

I don't know if I fit the characterisation of a "flipper". I have never ever purchased a mower of any description. People give me their "basket cases" just to avoid the disposal effort/cost. I either bring them back to life or keep them for spare parts. I have renovated a few push mowers and...

The hydraulic transmission works!!!! When I say that, its with the wheels off, hubs rotate, at a good speed, in both forward/reverse. Is the above test sufficient to determine the condition of the transmission ie could the hubs work, with no load but be weak when asked to move the mower?? This...

"...when the bale is pulled back." What is the "bale" ?- new term to me. Yet to see an engine fitted with a flywheel brake?

Sounds like something causing friction eg string around the blade shaft, something within the engine cooling cowling rubbing against the fly wheel. :devilish:

Just to be pedantic; A wheel is usually made up from several components; Tyre - Outer structure/material in contact with the ground. Rim - Inner frame /structure that supports the Tire & connects with the Hub Hub - Connects the Rim to the axle. Some wheels will have the Rim & Hub in one...

Wow! I have never seen a cutter disk /head/system quite like that. In theory it should work very well. The more cutters the less each has to do delivering more consistent power demand from the engine and a smoother cut. I wonder if some of the problem may be how the cutter head is set up? My...

True!. That contamination (old/new oil) will exist no matter what I do, short of a complete drain. Should the hydraulics work, I will endeavour to drain as much of the old fluid as possible, before refilling with Hustler Synthetic Oil. Hopefully the percentage of old/new oil will be small and...

Thanks Ilengine - I understand what you are saying about the reservoir level. I have changed all the hoses (not the big return at base of reservoir) and there was no oil in them. This makes me think that the oil in the reservoir may be used up in "filling" the system, resulting in...

I am, trying to resurrect a Hustler Super Z. Taking small steps as I don't want to invest too heavily, before knowing what the outcome will be. I am nearly ready to test the hydraulic transmission. It had been leaking badly, so oil level is well below specified "1in from the top of the...

SGKENT has pretty much covered the majority of possible reasons for backfiring. In my limited experience the most common are: Ignition timing Exhaust valve timing Exhaust valve leaking Small leak in exhaust system has been known to cause backfire when engine decelerated fast. Ignition timing...

Well I got the Kohler going this afternoon. Good sign. Had to replace some fuel lines that were leaking fuel out/air in and needed a good big, freshly changed battery to overcome the initial reluctance of not starting for several (?) years. Now that I know its a goer, I have given it a basic...

While it is possible to have a level cutter deck, the blade head/spindle angle should always be slightly lower at the front than the back ie you cut with the front arc of the blade not the rear. When adjusting any cutter you measure the blade height, not the deck, from the ground. :devilish:

Tyre pressures are usually determined by a combination of load (weight) and carcase deformation ie is the tyre contacting with ground at its max "footprint" Too high pressure reduces ground contact (convex cross section) concentrates wear on the centre of tyre and reduces the suspension...

What bit of OUTSIDE the dipstick /fill tube did you not understand.? :devilish:

Faulty choke mechanism most likly. Second - float valve dirty/perished - clean or replace. Float itself unlikly to be the problem unless absorbing/filling with fuel. Distant possibility - something blocking air supply (assuming air filter in good condition). :devilish:

Maaate! - You miss the point. Just check where your dip stick Max level will be on the OUTSIDE of the tube. This will tell you if the cap should be screwed down or rest on the top. :devilish:

Is there a problem with responding to Hustler/Kohler questions??? :devilish: :devilish:

If in doubt; My understanding is, in a vertical shaft engine, the oil level should not be above the split/join in the cancase. Place the dipstick on the outside of the holder, cap resting on the top, observe where the MAX level line relates to the crankcase split. Is the MAX line at or above...

It would be really nice, if some of the resident experts, responded to my questions. :devilish:

Any other engine suggestions (B&S ,Vanguard, Kohler) ? :devilish:

"The bearings are noisier than I like but there is no detectable slop,..." You must have great hearing OR your bearings are in such a bad shape the noise is discernible, over that of the engine. If you have noise, without the engine running, you are turning the blade/spindle by hand, the above...

A mower is just a grass cutting/processing machine (like a harvester). It will only process a certain quantity of grass, for a given forward speed. Go faster than what it can handle & cut quality will suffer. Longer grass (more quantity) requires slower forward speed. :devilish:

All 12V electrical systems are prone to bad earth/ground - check that the ignition system is well grounded - nothing loose or corroded. With all my 12V systems (including my road vehicles) I run additional, to chassis./frame return, dedicated earth/ground wires. I rarely have an electrical...

Good stuff MParr. In particular the location (reservoir) to assess the temperature. Only thing I would add is; This applies to the oil that came with or recommended for, the system - it's not unusual for the OM oil to have been replaced with something diffrent. Added to this is the ever...

Just exploring worst case scenario; What carburetor engine replacement (Kwaka?) for the Kohler CV745 would you suggest? :devilish:

I assume this is a Briggs & stratton engine? As you have just had the carburettor rebuilt , it is likly that the build and or the refitting to the engine, have resulted in the air-fuel mixture being too lean. Most often this is the result an air leak or blocked jet. The B&S numbers you...

"I read that 15W50 is good up to 220 degrees." The optimum (best) temperature operating range varies from oil to oil - ie depends on how its been formulated by the chemical engineers. For best advice on this, check with your hydraulic oil manufacturer. In my limited experience; 93 C (200 F)...

"You have answered your own question" .Its called a "rhetorical" question. :devilish:

Chassis & cutter deck cleaned - took two days. Chassis in good condition. Cutter deck will need to be removed for some of the underside grass flow baffles to be straightened & welded back in place. So far it looks like blades & spindles in good order. Engine has been partially dismantled, to...

It was/is not uncommon in agriculture to have wearing points/blades using bi-metal "sandwiches ". The idea being that one metal provides hardness/resistance to wear, the other impact resistance/structural strength. The way the metals have been combine & shaped, will often result in wear...

Yes electric vehicles have been with us for a very long time. Not sure I agree with "...people preferred combustion engine vehicles more" There has always been a large section of the community who are only intersted in the vehicles ability to carry them from A-B - What motivates it is of no...

Start by checking your tyre pressures - The first "spring" in a wheeled vehicle/equipment, is the tyre wall flexing. Too much pressure and you reduce that flex. As a start point go with the mowers recommended minimum tyre pressure & adjust, if required, from there. :devilish: