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-   -   retarded oil pump question (https://www.homemadeturbo.com/general-discussion-6/retarded-oil-pump-question-60206/)

Reddy 04-25-2006 12:25 AM

retarded oil pump question
 
If you reverse the rotation of an oil pump will it still function and just flow in the other direction? Or do the pumps only work if they rotate in the direction they were designed for?

Tatakai 04-25-2006 12:29 AM

Re: retarded oil pump question
 
im pretty sure they're made to go one way..

HMT-Admin 04-25-2006 12:29 AM

Re: retarded oil pump question
 
Not sure how well it will work with the pressure relief valve.

Theres just a little spring in there that basically sets the pressure. If you reverse it, how will it be able to control pressure?


con 04-25-2006 12:30 AM

Re: retarded oil pump question
 
depends on which style oil pump you speak of.

Reddy 04-25-2006 12:41 AM

Re: retarded oil pump question
 

Originally Posted by highroller54
depends on which style oil pump you speak of.


Here's the pump:

http://www.hmt-tv.com/hmt/matt/Banshee/DSC00879.JPG


http://www.hmt-tv.com/hmt/matt/Banshee/DSC00882.JPG

kain 04-25-2006 12:45 AM

Re: retarded oil pump question
 
reversing flow will not work.

HMT-Admin 04-25-2006 12:47 AM

Re: retarded oil pump question
 
What regulates the flow on that? can you see a spring/diaphram anywhere?

Reddy 04-25-2006 12:51 AM

Re: retarded oil pump question
 

Originally Posted by AbaZ
What regulates the flow on that? can you see a spring/diaphram anywhere?


What you see is what is there. There's no spring or anything. I'll go double check...

Tatakai 04-25-2006 12:51 AM

Re: retarded oil pump question
 
i assume this is for a car yes?

wouldn't reversing the flow, suck up oil around your head and shoot it out your pickup :S

Reddy 04-25-2006 01:04 AM

Re: retarded oil pump question
 
Ok here's this fucker completely disassembled:


http://www.hmt-tv.com/hmt/matt/Banshee/DSC00883.JPG



Originally Posted by Tatakai
i assume this is for a car yes?


You assume wrong. Its for my project, pump goes here:

http://www.hmt-tv.com/hmt/matt/Banshee/DSC00874.JPG


Its for a 2-stroke application everything's custom


jinxy 04-25-2006 02:49 AM

Re: retarded oil pump question
 
im pretty sure reversing the rotation would reverse the flow since you're reversing the mechanical operation of the pump.

salesmonkey 04-25-2006 03:13 AM

Re: retarded oil pump question
 
just curious of why you want to reverse the flow? or is that the only way you can get it on?

Random Hero 04-25-2006 03:53 AM

Re: retarded oil pump question
 
I know this doesnt really relate to the oil pump's flow.. but

2stroke with an oil pump? help me

88crxSi 04-25-2006 06:12 AM

Re: retarded oil pump question
 

Originally Posted by Random Hero
I know this doesnt really relate to the oil pump's flow.. but

2stroke with an oil pump? help me

turbo banshee.

con 04-25-2006 09:18 AM

Re: retarded oil pump question
 
I dont think it will work perfectly because the timing is different, (when the oil enters and leves the pump but that doesn't mean it wont pump enough oil to keep a snail lubed. I would just make a bench tester for it 8)

baldur 04-25-2006 10:03 AM

Re: retarded oil pump question
 
it'll work fine in reverse, but the flow will be reversed.

kain 04-25-2006 10:24 AM

Re: retarded oil pump question
 
unless its a spring type oil pressure regulator tyhats hidden in the block somewheres, nice way t ---- something up in a hurry,

Reddy 04-25-2006 12:05 PM

Re: retarded oil pump question
 

Originally Posted by salesmonkey
just curious of why you want to reverse the flow? or is that the only way you can get it on?


space is limited, it would fit better if I could mount the gear the other way. I have to fit this whole thing in the space below the shiney thing (water pump):

http://www.hmt-tv.com/hmt/matt/Banshee/DSC00872.JPG



Originally Posted by Random Hero
I know this doesnt really relate to the oil pump's flow.. but

2stroke with an oil pump? help me


think of what website your on. :1

Tatakai 04-25-2006 12:46 PM

Re: retarded oil pump question
 
so are you just trying to rig up an external pump type deal? if thats the case i don't think it would matter which way it spins, but I don't know anything about springs/diaphrams controlling the flow :1

Reddy 04-25-2006 02:07 PM

Re: retarded oil pump question
 

Originally Posted by Tatakai
so are you just trying to rig up an external pump type deal? if thats the case i don't think it would matter which way it spins, but I don't know anything about springs/diaphrams controlling the flow :1


Its not exactly "rigging" I'm using an Rz350 sidecover and machining the oil injection pump shaft to fit a Honda 300ex oil pump to get the pressure I need. I just need to make the shaft on the right look like the shaft on the left and I'm done.

http://www.hmt-tv.com/hmt/matt/Banshee/DSC00881.JPG

Reddy 04-25-2006 07:45 PM

Re: retarded oil pump question
 
any other input?

accordepicenter 04-25-2006 11:01 PM

Re: retarded oil pump question
 
drive the oil pump with an electric motor. You can pre lube before you start the engine up too

Reddy 04-25-2006 11:06 PM

Re: retarded oil pump question
 

Originally Posted by accordepicenter
drive the oil pump with an electric motor. You can pre lube before you start the engine up too


Lol, this whole pump setup is to avoid an electric pump. They take up too much space, weight and draw too much electricity

hotrex 04-26-2006 12:21 AM

Re: retarded oil pump question
 
your mother has a pegleg, and the bitch walks in circles

Reddy 04-26-2006 12:30 AM

Re: retarded oil pump question
 

Originally Posted by hotrex
your mother has a pegleg, and the bitch walks in circles


Maybe, but at least I never slept with Lumberg.

hotrex 04-26-2006 12:33 AM

Re: retarded oil pump question
 
i sleep with everything

Reddy 04-26-2006 12:36 AM

Re: retarded oil pump question
 

Originally Posted by hotrex
i sleep with everything

I know. Thats why you have a gift that keeps on giving of painful blisters :S

hotrex 04-26-2006 12:42 AM

Re: retarded oil pump question
 
your father sampled that first hand

JonDouglas 04-26-2006 01:14 AM

Re: retarded oil pump question
 
I think that since it is a gearator style pump that it will be fine.

krustindumm 04-26-2006 01:54 AM

Re: retarded oil pump question
 
It uses reed valves on the intake and a port on the exhaust. It will work just fine.

Cray91 04-26-2006 03:47 AM

Re: retarded oil pump question
 
With no regulator aparent my vote goes for using it either way. The flow will be equivilent either direction.

Reddy 04-26-2006 02:45 PM

Re: retarded oil pump question
 

Originally Posted by krustindumm
It uses reed valves on the intake and a port on the exhaust. It will work just fine.


wtf does that have to do with anything? ???

krustindumm 04-26-2006 05:47 PM

Re: retarded oil pump question
 
nothing really, I was high as ----.

However, if you look at the inlet side opposite the outlet porting the blockoff (to stop it from reverse flow) is nearly lined up with the center of the shaft. You may loose some efficiency, but it will work.

Anywya, if you want it to work perfect, why not an idler gear? You might even be able to run it off the water pump gear.

Reddy 04-26-2006 09:07 PM

Re: retarded oil pump question
 

Originally Posted by krustindumm
You might even be able to run it off the water pump gear.


Its already designed. Its running off the crank gear. I'm machining the shafts this weekend

Tatakai 04-27-2006 12:50 AM

Re: retarded oil pump question
 
oh, i completely forgot to post.

i asked my autoshop teacher, and he couldn't get his head around the question of "WILL IT WORK: YES OR NO?" but yes, it will work. he kept asking me why you need an oil pump on a 2 stroke lol :S

Reddy 04-27-2006 01:58 PM

Re: retarded oil pump question
 

Originally Posted by Tatakai
oh, i completely forgot to post.

i asked my autoshop teacher, and he couldn't get his head around the question of "WILL IT WORK: YES OR NO?" but yes, it will work. he kept asking me why you need an oil pump on a 2 stroke lol :S


some people just comprehend the awesomeness of it ;)


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