Small Engine Troubleshooting Problems? Ask a Mechanic Now.
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Jason, you likely have an air leak. It could be at one of your fittings.
Look inside your oil reservoir. If your oil is foaming or has excessive bubbles, this indicates an air leak.
Thanks for your reply. What about your drive belt? Is it in good condition, and as tight as it needs to be?
This is a troubleshooting question ...
Are you requesting a phone call?
Yes, you are correct. If you like, we can continue on this discussion page.
No problem. I prefer to continue on this page. Does your left side continue to perform well, after 15 minutes?
Jason, I would like express a thought I have.
If a drive belt is slipping, it can sometimes noticeably affect only one side of your hydraulic drive. You stated that your belt is a little oily. If your belt is oily, it is possible that one of your pump pulleys are also a little oily. It is also possible that an oily belt, can begin to slip after it heats up.
A worn/slipping belt can reduce the performance of even a perfectly working hydro drive system ...
As a process of elimination, I would clean the oil from your pump pulleys, and replace the drive belt.
If you had an air leak, you would likely see bubbles, or foaming inside your oil reservoir.
I would definitely purchase an OEM belt.
I would like to confirm something. You put in a brand new pump??
We can continue after you replace your belt. There are no additional fees for us to continue.
Jason, I am back with you. Can you get the model numbers from your pump for me? I would like to take a look at your pump.
Thanks for these numbers. Your original pump blew the lip seal? Now your new pump has blown a seal too?
Can you give me a minute or two, to pull up a diagram of your pump?
When you say blow seal, is the seal actually coming out of the pump, or is it just leaking oil really bad?
I understand now. Due to the fact that you had this problem with both pumps, I am lead to believe that you still have air being sucked into your system.
You have either a hose or a fitting that caused the problem with your original pump.
There is a return hose that allows your oil to return to your reservoir. I would check this hose first.
Yes it is. Also, you want to check that hose for restrictions. Make sure that hose hasn't started to collapsed internally, and restricting your oil flow. A restriction in your return hose can cause pressure to build inside your pump.
Did you remove it and check to see if it is restricted?
I know it is time consuming, but I would double check each hose and fitting. Pressure is definitely building in your pump.
If your hose will spin, this could cause a problem. If it still spins, after you tighten it more, then it will need to be replaced.
If you have not replaced the o-rings, I would replace them.