tranny spin on filter

coker6303

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The is directed toward Mike, but anyone can answer:

Does anyone see any benefit with a higher flowing 10micron microglass hydraulic spin on filter for the allison? The would have much less pressure drop accross the filter into the valve body as well as a huge increase in filter efficiency.

Any thoughts?
 

MACKIN

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Which element is that? From what I've read there is no benifit of running anything different then the RED filter. There is NO pressure to gain
 

Mike L.

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Which element is that? From what I've read there is no benifit of running anything different then the RED filter. There is NO pressure to gain

Correct. There is 125 psi going in to the filter and 125 psi coming out. Anything over 126 psi gets dumped to sump by the Control Main regulator valve to keep the solenoids from jamming. If pressure to the spin on is below 125 psi ( ie dirty filter ) the trimm solenoids will not respond correctly and cause all kids of problems. Solenoids cannot operate properly under higher pressure. Solenoids control valve movement and the valves open and close passage ways for the pressure to travel to the clutches.
Wrong place to play around.
 

Mike L.

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The is directed toward Mike, but anyone can answer:

Does anyone see any benefit with a higher flowing 10micron microglass hydraulic spin on filter for the allison? The would have much less pressure drop accross the filter into the valve body as well as a huge increase in filter efficiency.

Any thoughts?

The Allison spin on is 27 micron. How can a 10 micron be higher flowing?
 

Duramax_JP

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Jul 3, 2008
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The Allison spin on is 27 micron. How can a 10 micron be higher flowing?[/QUOTE


I was under the impression that the it's not how many microns that determines flow, but I guess the flow rate. That sounds stupid but am I mistaken? Does the micron count determine flow rate as well as how well it filtrates?
 

coker6303

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Thanks for the info Mike, thats exactly what I was looking for.

As for flow rates, microns don't effect flow rate however, lower micron ratings will choke up much quicker until the system is cleansed to the appropriate level (depends on level of contamination and fluid volume). Flow and pressure drops are dependent on surface area, internal ports, and filter media.

Microglass media typically has a 99.9% single pass rating while the same filter with paper media may only trap 50-60% in a single pass efficiency rating. The means the paper element has to see multiple passes before it filters the oil to specifications. We don't necessarily need 10 micron (may trap too much clutch material) but keeping our fluids clean is very important.

Just throwing the idea out there. There is always a pressure drop across a filter but if it is limited on the down side of the filter then it is negligible. Thanks you all for the input!
 

Mike L.

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The Allison is a very clean trans and you will hardly ever see material in the pan. I know that Allison engineers spent a lot of time with the spin on to get it right because it is so critical in keeping the solenoids working . There is a fine line with this filter and if it is not exactly right you will have problems. They don't want a low micron filter in this circuit.
 

Duramax_JP

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Hey mike, is there any issue with using a spin on from autozone that's not like the designated one you get from the dealer? Just thought I'd ask since I use the ones from autozone
 

ripmf666

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The Allison is a very clean trans and you will hardly ever see material in the pan. I know that Allison engineers spent a lot of time with the spin on to get it right because it is so critical in keeping the solenoids working . There is a fine line with this filter and if it is not exactly right you will have problems. They don't want a low micron filter in this circuit.


Mike while the thread is talking about pressures and the solenoids. I thought I read somewere it not good to do trans flush with a machine. Something about when its refilling or something think I saw that in a TSB from Gm.
 

paint94979

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Hey mike, is there any issue with using a spin on from autozone that's not like the designated one you get from the dealer? Just thought I'd ask since I use the ones from autozone

i wouldn't at all use one from Autozone... the Allison is is frickin cheap man like 12$ and some places they can be found for slightly less... I order mine from Mike:hug: is it really worth saving a few dollars per filter to potentially have a sick Allison?
 

Mike L.

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Mike while the thread is talking about pressures and the solenoids. I thought I read somewere it not good to do trans flush with a machine. Something about when its refilling or something think I saw that in a TSB from Gm.

I have heard that using a flushing machine can cause certain valves to move when they shouldn't and can cause a problem. I have no experience with this and don't want to. Let the Alli pump do the work as prescribed by the engineers.:D
 

Mike L.

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i wouldn't at all use one from Autozone... the Allison is is frickin cheap man like 12$ and some places they can be found for slightly less... I order mine from Mike:hug: is it really worth saving a few dollars per filter to potentially have a sick Allison?

I sell the Allison filters for 10 bucks. I pay 7.90. They are not ceramic coated and I did not make them. They will not solve your overheating problems or make you go faster. They just do what they are suppose to do and not made in China like every other spin on made.
 

Mike L.

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i wouldn't at all use one from Autozone... the Allison is is frickin cheap man like 12$ and some places they can be found for slightly less... I order mine from Mike:hug: is it really worth saving a few dollars per filter to potentially have a sick Allison?


Nick
I'm going to ban you if you don't take that avatar off. If you tell me Chris did it, I will kick his ass and still ban you bro.:rofl::happy2::hug::D
 

paint94979

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Nick
I'm going to ban you if you don't take that avatar off. If you tell me Chris did it, I will kick his ass and still ban you bro.:rofl::happy2::hug::D

Mike, i have no idea who played with my avatar or signature this time:D im changing it right now
 

MadMaxx61

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I sell the Allison filters for 10 bucks. I pay 7.90. They are not ceramic coated and I did not make them. They will not solve your overheating problems or make you go faster. They just do what they are suppose to do and not made in China like every other spin on made.



:happy2: :rofl::rofl::rofl: :happy2:
 

Mike L.

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God I hope Kat is too busy to see this shit.
WWW will flog me to no end if she does.:eek::hail::hug::D