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06-25-2016, 04:32 PM #1Junior Member
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- Jun 2016
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New '06 Moomba Outback DD - need some help! Only 3800 RPM
Hello everyone! I just purchased an '06 Moomba Outback DD with 197hrs on it. The previous owner kept it spotless BUT did not handle the basic maintenance. After looking at the corroded stock cap & rotor, I replaced with a new one and MR43LTS to replace the stock 41-993s.
Problem I am having is that it's topping out at 3,800RPM (roughly 38mph). I went ahead and ran some Techron through it and changed the fuel filter...no help.
This is on the stock OJ 13x13 prop. I pulled off the spark arrestor and made sure the throttle body was opening all the way and it is. Temps are about 170 on the gauge and oil pressure is about 70-75psi at 3,000 RPM.
So, what's next?
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06-25-2016, 04:53 PM #2Junior Member
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- Jun 2016
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Sorry, it's the 325 assault engine
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07-03-2016, 05:08 PM #3Junior Member
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- Jun 2016
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I have the same engine in my 2008 and mine runs about the same speed... although my speedometer doesn't work I checked it with GPS and it's around 37 MPH max... right around 3800 RPM's as well... SO I guess maybe this is normal?
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07-05-2016, 08:18 PM #4Junior Member
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- Aug 2011
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- 17
sounds to me like you need to check the throttle cable to see if it has slipped. My 325 assault runs 45mph at 4800 rpm but you cant really go by that bc i think my prop is a different size ( cant remember size and not home) but nonetheless 3800 is not WOT RPM
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07-05-2016, 09:01 PM #52007 Outback - SOLD June 2016
2012 RAM Crew Cab
2015 Subaru Forester
Stuart
"When you first start out with something new, you're always a little uptight." - Don Rickles
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07-15-2016, 09:00 PM #6Junior Member
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- Jun 2016
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How would you go about checking if the throttle cable slipped? Also, is there a way to adjust the cable?
Thanks
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07-19-2016, 05:52 PM #7Junior Member
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- Jun 2016
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- 28