air in the hydro system

[Shady Brook]

I just changed my hydro fluid, and filter in my Turf Tiger. I think I have air in the system, as when I engage the levers, it seems to bog down, and take longer to get to full speed. Does this sound reasonable? Also, how should I purge the system? Also, this is a drive shaft driven mower deck, and now for some reason the engine will die when I engage the blades. Does this sound like something that could be related to the hydro? I can not see how, but who knows.

Thanks fellas
Jay

[General Grounds]

:blob3: shady did you fill the oil filter first until it would'nt take no more oil? and are you useing the proper weight oil in the drive system. as far as the engine dyin when you engage the blades you could have something restrict the blades from funtioning, how about the gear box oil have you checked that for seized bearing? Tony

[Shady Brook]

I just discovered what the deal was..... I changed the spark plug, but did not reconnect the plug wire! My question is.... How did it run at all? :confused:

But she is running super now, does not appear to be an air problem. I do hate getting that hydro filter just tight enough, it always wants to leak some fluid.

But then again, I must be ******ed. I don't mind, long is the machine is going.

But just for kicks, how do you purge that hydro system?

Thanks
Jay

[General Grounds]

:blob3: shady, a 2 cylinder engine will run with i cylinder, just not well and have no power, it will even sound weak, this is how we check if a cylinder has gone bad, you would puull the plug boot off and if the engine is still running then you know the side connected is good, if you where to pull the boot off and the engine where to shut down then you would know you have a down cylinder. as far as the hydro sytem goes i usually just drain the resiovoir and change the filter and dont mess with getting the oil out of the system, there are to many places for mistakes then. Tony

[Shady Brook]

Thanks alot General Grounds, that is very helpful. One thing that did cross my mind was, where is the second plug. I mean with two cyliders, you would think there would be two plugs. Oh well, there I go thinking again.

Thanks
Jay

[khouse]

Try operating both levers forward and reverse about 1/2 inch about 100 times. Then recheck the fluid level. This should purge some of the air. Your other plug is symetrically across from your known plug. Can't miss it.

[Shady Brook]

khouse

Shows you how observant I am!:rolleyes:

Thanks for your help.

Oh, one final question. If your filter continues to seap a bit, is it ususally because it is on too tight, or too loose?

Thanks
Jay

[khouse]

If you have problems with that filter sealing then you probably have a scratch or machine error on the surface where the filter seats to the housing. The filter is on the low side of the hydro's so it onlt need to be tightened maybe 1/3 to 1/2 turn past of when the seal makes contact with the flange. Do you always have problems with this filter sealing?

[khouse]

Maybe it's leaking from the filter housing gasket not the filter seal?

[Shady Brook]

So far every time I have changed the filter I get a leak. After jimmying around with it I can get her to stop. Has taken several attempts each time to get it right. I think I maybe going closer to a full turn. My problem is seeing when I initially make contact with the seal. I may have to back it off a bit.

Thanks a bunch
Jay

[sdwally]

Hydro are a closed loop system. They will purge themselves without doing anything else. The hydro pump has a large cavavity which the charge pump will fill full of oil, they actual pump then draws oil from this cavavity. As mentioned above, it is best to pre-fill the new filter.
Oil filter leak - make sure that the gasket is on the filter correctly and that the old gasket is not stuck to the filter head. Lubricate the new gasket with a little oil before installation. If you still have leaks check the filter head gasket area for any scratches or gouges, also make sure filter head gasket area is clean. If you still have leaks try lubricating the gasket with grease(just a little) instead of oil. If you still have leaks the filter head may be warped.

[awm]

i guess if u really got down on it with a filter wrench ,u could squease the seal out of place.it wouldleak then. i just put mine on tight as my grip will do it.never leaks or has a problem.
later now

[Shady Brook]

awm

Thanks for the reply. It took me about 7 times to get it right this time. I usually tighten it down real good by hand, but it always seems to leak. So then I back it off, goof around, back off, tighten up til I get it right. I wish for me that it was just hand tight and be done. Would make it a whole lot easier.

Jay