Sophomore Rider
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Post by dude on May 9, 2013 19:48:03 GMT -5
I need a new oil pump for a 139qmb. Its the on with 16/33 tooth gear. I can find the 22/47 tooth one.
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Post by carasdad on May 9, 2013 21:04:03 GMT -5
I need a new oil pump for a 139qmb. Its the on with 16/33 tooth gear. I can find the 22/47 tooth one. May have one...will look tomorrow..parts bins are put away for the night. How do you know you can get 22/47 vice 16/33. Just curious as I have never seen a parts dealer that lists that info. In order for me to get info such as that on many different parts... I have to ask my wholesaler to pull the part and count teeth...weigh the item...measure the item..or find out whatever info I need on something..cause as I said..I never see pertinent info such as that posted on their websites. Is this a QJ 4T engine btw? |
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Sophomore Rider
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Post by dude on May 9, 2013 21:08:43 GMT -5
I think SD sells it. It's the one the gear bolts to the pump. The other one the shaft is pressed in the gear.
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Post by carasdad on May 9, 2013 21:20:19 GMT -5
I think SD sells it. It's the one the gear bolts to the pump. The other one the shaft is pressed in the gear. What is the diameter in mm of your oil pump gear? Do you need just the pump..or gear as well? |
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Sophomore Rider
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Joined: Feb 24, 2013 10:04:01 GMT -5
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Post by dude on May 9, 2013 22:57:36 GMT -5
I think SD sells it. It's the one the gear bolts to the pump. The other one the shaft is pressed in the gear. What is the diameter in mm of your oil pump gear? Do you need just the pump..or gear as well? Not sure dia. But it has 16 teeth and it bolts on to the oil pump. IJust need the pump.The 22 tooth the shaft is pressed on the gear and just slides into the pump. |
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Post by carasdad on May 9, 2013 23:07:30 GMT -5
K...will look for one in the morning.
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Post by triker on May 9, 2013 23:44:27 GMT -5
I got a 33 tooth gear and oil pump to match from parts for scooters. The drive gear on the crank will have 16 teeth and the pump driven gear will have 33 teeth. the 33 tooth gear is held on to the pump shaft with a nut.
Roy
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Post by onewheeldrive on May 9, 2013 23:47:58 GMT -5
2 things. Oil pump gears need labeled properly, and so do crankshafts.  The time it takes to put a simple description of an essential part to a scoot, will save many emails. A site with specific details is more likely to get my money.  |
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Post by carasdad on May 10, 2013 7:25:17 GMT -5
 100% agree. Also after your IT folks add a product to your page...have a Tech verify the info..have seen several sites with incorrect info...i.e. one lists QMB139 roller weights as 18X14 and 9-17 gram. So I called them..and they guy said.."That is what they are for that engine".... D8
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Post by carasdad on May 10, 2013 19:05:56 GMT -5
K...will look for one in the morning. Sorry..a 'No Go' on the pump...just have 2 of the ones ya don't need.  |
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Post by onewheeldrive on May 10, 2013 23:34:30 GMT -5
The last two oil pump gears(not the actual pump) I've had, didn't even bolt on like the first one I had did. They sit in the engine case---like how the starter bendix gear fits into the cvt cover. Is that the new thing now? Something to consider when ordering one..
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Post by triker on May 11, 2013 4:08:42 GMT -5
The locator dowel pins are in different locations on the two pumps. The pump on the left in the photo uses a 47 tooth driven gear and the pump on the right uses a 33 tooth driven gear. Notice the location of the dowel pins.  Roy |
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