Subaru EJ Series Engine Water Pumps: Over 10 Different Water Pumps?!
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- Опубліковано 14 тра 2022
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I just finished timing belt service on Saturday on my 2002 Forester. I want to say thank you for teaching me how to do it. Installing the new water pump was the only struggle do to the gasket moving around. I got it on the 3rd try. Thanks again👍 I also did the valve cover gaskets, plugs and wires. The spark plug tubes were full of oil. New plugs and wire gave so much power back when it was finished.💪
Sweet man! I did my '10 two years ago. The gasket was a pain!!
Need to address this on my 09 2.5 outback wagon to restore its original power too ! Feeling confident thanks to Mr Subaru’s vids 🤙🏻
I'm sure this was a lot of work. What a great video!
You answered all my subaru water pump questions.
Brilliant.
the closed cast impeller is the better design. i try to use them when ever possible. i used to be able to get NPW brand pumps (which have closed impellers and made in Japan)at my local API but they dont carry them anymore. the stamped open impeller design is less efficient - likely made to cut costs
You can get NPW (Nissan Pump Works) at Napa under the Altrom brand.
@@2003wrx64 good to know, unfortunately my local NAPA (Sanel Auto parts) is by far the highest priced auto parts store in town. i honestly dont know why anyone uses them. i only go there went absolutely necessary. i can still get the NPW pumps online. the F-17 (bottom t-stat non turbo)and F-27(front t-stat non turbo) are the 2 most common
Thanks man! Helped me through my clutch job, water pump n timing belt. Sway bar links, exhaust and basically everything else on my 05 legacy gt
Ahh yes the dreaded 06 Forester water pump was a fun one to figure out. Having the oil cooler on mine is great but that rarer than it should be pump was annoying to get ordered in. Great video with lots of great info thank you Mr. Subaru! 👍👍
Great video. Should clear up confusion for a lot of people.
2019 Sti, 110,000 km. Water pump seized. Overheated before belt broke. Just got it apart. Parts ordered. Thanks for the great videos!
just did the timing belt and pump on my 04 wrx the aisin kits water pump so far works great 10-20 degrees cooler than the stock water pump
Great info Robert we’ll explained too
I'm using your channel as "Subaru College" while I'm looking for one to buy.
I've never owned one, never driven one, I want one SO bad, I was initially intimidated by them, and to be honest I still am to a degree, but as I've heard all my life in the South, "Ain't nothin' to it but to do it."
When I did my 04 Forester XT TB replacement I did the water pump as well and sourced the closed cast impeller from the local Subaru dealer, that water pump was for some reason exactly half the price of pressed steel open impeller in my part of the world, I assume it was older stock and therefore cheaper.
Excellent summary of EJ series. Best I've seen. Does your expertise extend to the EG series, especially the EG33? I'd love to learn more about that.
Thanks 🙏 sir. Love from 🇮🇳 I have 04 Forester 2.0x trim model manual as in India there are no parts available pls guide to get the right parts I want to do timing, Gas kits as oil is leaking on silencer, and clutch kit need to replace also. Thanks a lot ur video help a lot. Keep growing. ❤️
Nice, so when i pull apart my 2006 lgt manual with 200000 miles it will be interesting to see if the previous mechanic used the right pump, and whether the aisin tkf004 is the right replacement part, fun adventures 😁
The Legacy SS/TW EJ22T has two different pumps. The 1991 has 3 ports (21111AA026) and the 1992-94 has 2 (21111AA065) as you mentioned. The '91 Legacy SS was the only 22T with an oil cooler.
Thanks
Thanks for the video! Would it be alright to ever plug/cover one of the unused barbs on a new water pump, based on the unavailability of the correct water pump version/SOA number?
fun fact! The subaru 21111AA065 will fit the 1995 subaru WRX EJ20G with automatic transmission (I cant say for the manuals being that I have an auto)
My head is spinning but better than being a 3 pump chump 🤣
😂 😂 😂
Been there. My 2006 MT Forester's front disassembled to change the timing kit, and the fckn water pump isn't the right one. We ordered two different ones to be sure, and it was the third type.
How many bolts is it on the front plate ez30, 53? Will do next year...making me feel much better about rocker covers, valve adjustment in the meantime...
Holy crap I only knew of like five!
Hi Mr. Subaru, my 150miles 2007 subaru legacy 2.0R MT, has started hesitating during acceleration.... the throttle body been cleaned recently and was running perfectly, but it has now started this scarely thing, am worried 😟 .... what could be the issue
My 2006 Subaru Forester had an engine replacement, it now has an ej25 how do I find out what did this engine come off? Does an open impeller make a huge difference?
So a water pump for a 06 Forester with an Automatic will bolt right in place of a 04 Forester water pump with no problems with the exception of a little change to the oil cooler line and lower raditor hose.
I have a question that someone else has already mentioned here. It's with regards to the pros and cons of the types of impeller used.
Most people say that the cast impeller is either more efficient or cavitates less at high rpm. We'll also see more stamped units that are supposedly more cost effective. Probably because those models were produced in higher numbers???
I see one of the pumps you mentioned was the HV cast unit and seems to confirm this theory. However, I see you showed other pumps also used in turbo applications that have stamped impellers instead. What's your opinion on that? Does this theory carry any weight?
Do all the water pumps bolts patters match up
I might’ve just missed it in the video but what pump is gonna be for an automatic N.A. ej20?
I want to change the Water pump in my 2002 Wrx Sti, would the cast/closed impeller pump be better/more efficient, because the one I have been using is the open impeller pump.
I recently had a customer with 2012 legacy 2.0 cvt with pump close to the 380 pump. But it had straight connections on the side and oilcooler hole in the back. Part number 21111AA460. That pump was hard to find.
Oddball one.
I have a 1986 brat and the waterpump is leaking coolant around the seal any tips on removal and repair?
I thought this video would clear things up but it's only lead to more confusion. I have a 2005 2.5i N/A manual legacy (UK market), im almost certain it's an EJ253 and its got a water pump with 2 barbs on one side... but no turbo, so where does the other line go? when I search for timing belt kits by reg number or make and model I find that half of the kits have one barb and the other half have 2? any ideas whats going on here?
Any problem using a cast impeller to the open prop?
Got a ej20 sohc with open impeller and only can find cast versions.
Why would the water pump be different on a manual versus automatic transmission? I just bought a manual timing kit with 1 barb on the water pump vs the 2 barbs on my old water pump
Now you should do a video on Oil Cooler part numbers LOL
or part numbers to eliminate the oil cooler... on the non turbo cars they serve zero purpose and are very leak prone. here in the north just about every one i see is either leaking oil or the metal pipe rusts out and leaks coolant. oil filter fitting, 1 hex plug and either a non cooler water pump or a rubber cap and the cooler is gone.
@@volks-jager I rarely see leaks there here in the non-rust belt. If anything its the red o-ring on the cooler.
With temps here that hit 110+F, the factory oil coolers especially on cars driven hard (even NA cars) do drop oil temps 15 degrees or more on the track.
In colder climates, these coolers can bring engine temps up faster. They even offered them as a dealer installed accessory kit for Foresters for awhile, mostly for thst purpose or towing.
@@stevemartegani 99.99% of subies up here are not driven hard or used for towing. (and race cars are whole different story). up here they are pretty much the vehicle of choice for Suzy soccer mom, old people and hippies. just about every one i get in with a oil cooler it is leaking oil profusely and when the low mounted metal tube that get hits with tons of salt rusts out you get a catastrophic coolant loss. ive converted well over 100 cars to the non oil cooler setup - simpler and it never leaks.
@@volks-jager Well, sounds like you should design a plastic or aluminum version of that tube and retire off the profits.
@@stevemartegani stainless would be the way too go. and also the metal tube that goes to the heater core - ive replaced so many of those it is absurd. too bad no aftermarket company makes them like that.
What the diferente of open or close water pump rotor or impellers
Are those numbers that you're giving are they on the thermostat housing somewhere? We bought a 2012 Subaru limited outback that I believe had the engine replaced. Is there a way to verify numbers on the water pump housing?
No. P/N isn't anywhere on the water pump.
Thanks for the video! I have JDM 2006 Forester with EJ205 Turbo and already have Aisin TKF-004 Timing kit with included pump: 21111-AA240 (WPF-023). Based on my research, 21111-AA250 should be installed originally. Aisin data sheet states that this kit fits EJ255\257, however, it recommends it for US WRX EJ205. I believe that my EJ205T is the same as 205 WRX EJ205T. However, found a number of reviews of this kit installation onto EJ205T with no issues. I am confused and wondering if I am safe to install AA240 (WPF-023) and TKF-004 Kit in my EJ205 Turbo? PLEASE ADVISE. Thank you in advance.
It should work fine for you.
@@MrSubaru1387 Thanks a lot for the answer!
I bought a whole timing belt kit from Subaru half a year ago for my JDM 1998 Impreza WRX STI, the water pump included in the kit was 21111AA026. Also come with double bearing lower idler, but the factory smallest idler supply was 13073AA200 simgle bearing idler. I know it become double bearing for 2001+ STI with a longer bolt, came back to Subaru they said GC8 only comes with single bearing small idler, wondering should I upgrade or keep it that way?
Always upgrade to the double bearing idler with longer bolt if possible.
Seconded.
Just wondering if the thermostat housing is interchangeable in all the water pumps? some are plastic, some not? How about fitment will some of the water pumps fit another EJ engine?
All these pumps bolt up on any EJ engine. They don't necessarily work, but they'll bolt in place.
The aluminum housing/outlet can be used in place of the plastic ones.
Does anyone have the Aisin part number for the timing belt/water pump kit that comes with the closed back cast impeller pump (bottom exit, one barb) for the ej251??
It’s driving me nuts.
2002 outback calls for TKF-010 but I don’t want the stamped steel impeller.. thanks!!
How often does one replace these? With every timing belt change, say 100k, or only when they fail? How long do they go on average? Thanks. I am asking cause I have a car that is due for timing belt replacement due to age, but mileage is low as I have not been driving much for last two years, ...I have been working from home.
Replace them with the timing belt kit. Rarely do they fail, but it's cheap insurance as to not have an issue while already in that deep.
Subaru Forester 2007
7106 AAL
SUBARU Forester II (SG) 2.0 X AWD Benzin 158 PS / 116 kW EJ204 5 gang manual
aisin subaru timing belt kit?
What about the eg33 water pump can you use ej2x pumps on it ?
No. It's different. I had an EG33 pump on hand, and was going to include it, but stayed all EJ.
@MrSubaru1387 how would you replace a head gasket on a sohc ej22 on a 1997 Subaru Impreza without a engine hoist or engine stand with mostly hand tools ? And where would I be able to flush or bleed the heater core to restore my heating system? I ask because this is my current situation and had just started as a new tech for Subaru and my head gaskets have blew. I don’t know what to do and it’s my daily commuter. Any suggestions or information on doing such without engine removal would be greatly appreciated
I wouldnt you kinda need the cherry picker and stand
@@jonk6137 that’s definitely unfortunate for me. I’ll have to get both then
It can be done with the engine in the car, it's just a much bigger pain.
@@802Garage I like to keep it easy considering I have never done it before
engine stand is dirt cheap at harbor freight. subie engines are very light - a tripod,gantry,garage roof joist or even a good tree and a chain fall hoist or come along will work. DONT do a shitty in the car head gasket job - on the stand is the right way to do it.
I can't help but to wonder if this wasn't a bit of a engineering eff-up from Subaru/FHI's part. Surely there must have been a better way to go around this than having so many different water pumps.
Its not a screw up at all, changing such an inexpensive part to accommodate multiple engine layouts is incredibly smart engineering.
The differences are entirely due to just header layouts, turbo vs non turbo, and whether or not the engine needs an oil cooler. With several options here, you can easily change components and not have to redesign massive expensive parts of the motor.
Better yet, this makes it incredibly useful for aftermarket motor building as you can add or subtract the factory oil coolers with these engines easily, change out to different headers, or even do various things with turbo coolant feed if needed. Just pick the right water pump and it can solve several changes you make.
how do the impeller differences affect performance?
From what I gather, the cast/closed impeller design is supposed to flow more/better than the open design.
I cant find an EG33 water pump, need at least two. Dealers dont have them, Ebay shows incorrect pump on pictures. Any ideas where I can find a genuine pump?
Im at the point of just spamming subaru of north america with emails to get one.
I had to buy an aftermarket pump for my SVX when it died. 😔 💔
Napa has the TWP 42328 pump, manufactured by GMB, available for the EG33.
open vs closed impeller
At least all the impellers are cast and not plastic.
faltaron los ej201....
#3…lol