Savage 25 Motor Burp

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Keeper
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Savage 25 Motor Burp

Post by Keeper » Sat Dec 03, 2005 9:11 pm

So I finally got my Savage back from Halgar yesterday.... We took it out and got it running, but had a few problems.

First, It seemed to take quite a while to warm up to point the RPMs were high enough to hit 2nd gear. Maybe 20 minutes of running before it started shifting properly. Towards the end of the run, I'd say around 45-60 minutes of running, the engine started burping. With my finger off the throttle (and on it) it would spurt over and over as though I was gently goosing the throttle. We thought it was a low fuel problems, so we hit the pit and refueled, but the burping lasted for another 10 minutes or so. Then it went away. Any ideas?

Q1: Why did the engine start burping (it was way low on fuel) and not correct itself after refilling the tank?

Q2: Why did it take so long to get it to start shifting properly?

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Halgar
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Post by Halgar » Sat Dec 03, 2005 9:15 pm

It was a surging, not a burping, just for the sake of clarity.

Keeper, what's the engine in it? May help in determining the issue.
I used to think I was indecisive, but now I'm not so sure.

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Keeper
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Post by Keeper » Sun Dec 04, 2005 5:24 am

It's a Savage 25. So it's a .25 I reckon :?

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Post by tmaxxmatt75 » Mon Dec 05, 2005 7:32 pm

You sure it wasn't your throttle servo glitching?
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Halgar
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Post by Halgar » Mon Dec 05, 2005 7:36 pm

I suppose that's possible, but it didn't do it before, in about 45 minutes of running, it lasted 5 to 10 minutes, then went away. It was just odd.
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Post by RcK cRwLr » Mon Dec 05, 2005 7:54 pm

Small pin holes in the feul line are most likely the culprate. Maybe a leak @ the fuel tank .Check the glow plug could be going bad , not likely but always good to check . :twocents:
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tmaxxmatt75
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Post by tmaxxmatt75 » Mon Dec 05, 2005 8:13 pm

It could be an air leak, but sense it went away after a few minutes it was probably the throttle servo glitching. My old t-maxx sat for a year with no use and the servo's went bad in it. :roll:

Best thing to do is have the body off and check to see if you can see the servo moving. If it ain't then it's somethin' else...probably an air leak.
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Post by Bolt_Crank » Mon Dec 05, 2005 11:49 pm

an air leak is possible... but start by changing the plug and fuel lines...

they're not exactly a high cost item :lol: :wink:
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Post by brushlesspede » Thu Dec 08, 2005 2:57 pm

I vote bad plug also.
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Post by tmaxxmatt75 » Fri Dec 09, 2005 4:17 am

Any updates? Curious to see how it's runnin'
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Keeper
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Post by Keeper » Wed Dec 14, 2005 4:15 am

Thanks for the input. I went to the hobby shop yesterday and bought new fuel line, glow plugs and crystals (I'm having radio issues as well). My mom will be in town this weekend so I'll have to wait till next week to start switching out parts and seeing how she runs. I'll keep you posted.

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Post by BloodClod » Tue Dec 20, 2005 2:24 am

Keeper wrote:My mom will be in town this weekend so I'll have to wait till next week to start switching out parts and seeing how she runs. I'll keep you posted.
Hope your mom runs alright...

j/k sorry but that statement just sounded funny to me... I'm wierd.
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Post by Bolt_Crank » Tue Dec 20, 2005 3:41 am

BloodClod wrote:
Keeper wrote:My mom will be in town this weekend so I'll have to wait till next week to start switching out parts and seeing how she runs. I'll keep you posted.
Hope your mom runs alright...

j/k sorry but that statement just sounded funny to me... I'm wierd.
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Re: Savage 25 Motor Burp

Post by buddy77 » Mon Jan 19, 2009 4:31 pm

sounds a tad lean on the low speed and little rich on the high speed . low speed will make it surge like that and the slow warm up is becouse its rich . lean it out the when the temp comes up the richen it a lil

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