How To: KA24DE Valve Stem Seals w/ head on + Video
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How To: KA24DE Valve Stem Seals w/ head on + Video
Update 2/18/2014 Changed link to video to a working link one of my buddies informed me it was messed up. Also password has been removed however if it should ask you its the same.
EDIT: PASWORD FOR THE VIDEO IS: boosted
Several things are necessary before you go about doing the stem seals.
-Seals (Felpro, beck arnley, or oem are the best to name a few. I know the felpro's and beck arnleys are viton rubber the originals in the 240 were not viton so I can't vouch for the oem seals) Local autoparts store will have to order them or rockauto will typically have a full head kit for the KA for around $50 + shipping
-Keeper Remover
http://www.amazon.com/Lisle-36200-Magne ... 819&sr=8-1
-Compression tester fitting, that will mate to your sparkplug hole. This should have a female 1/4" npt fitting that will screw on to a reel extension for a air compressor.
Harbor freight, northern tool, tractor supply... those kinds of places will carry them for a decent price. You can also purchase the male air chuck again 1/4" npt.
-Decent set of wrenches, and a 5" extension.
-Pin Magnet (not needed but nice to have)
Things you should know: The workings of a DOHC cam system, how to reset your cams when your reinstall, and dizzy timing. If you don't understand this please don't attempt.
Second keep all the lifter buckets, in order, as well as the cam caps. Do one valve at a time and take your time. Set aside a sunday to do it. As not to screw anything up. It only took me about 3 hours and that was with plenty of drink breaks and bs'ing with the neighboors about why my air compressor wouldn't stop going off.
Warning: Compress your cylinders with air before you try to take the valve spring out.
EDIT: PASWORD FOR THE VIDEO IS: boosted
Several things are necessary before you go about doing the stem seals.
-Seals (Felpro, beck arnley, or oem are the best to name a few. I know the felpro's and beck arnleys are viton rubber the originals in the 240 were not viton so I can't vouch for the oem seals) Local autoparts store will have to order them or rockauto will typically have a full head kit for the KA for around $50 + shipping
-Keeper Remover
http://www.amazon.com/Lisle-36200-Magne ... 819&sr=8-1
-Compression tester fitting, that will mate to your sparkplug hole. This should have a female 1/4" npt fitting that will screw on to a reel extension for a air compressor.
Harbor freight, northern tool, tractor supply... those kinds of places will carry them for a decent price. You can also purchase the male air chuck again 1/4" npt.
-Decent set of wrenches, and a 5" extension.
-Pin Magnet (not needed but nice to have)
Things you should know: The workings of a DOHC cam system, how to reset your cams when your reinstall, and dizzy timing. If you don't understand this please don't attempt.
Second keep all the lifter buckets, in order, as well as the cam caps. Do one valve at a time and take your time. Set aside a sunday to do it. As not to screw anything up. It only took me about 3 hours and that was with plenty of drink breaks and bs'ing with the neighboors about why my air compressor wouldn't stop going off.
Warning: Compress your cylinders with air before you try to take the valve spring out.
Last edited by 240drew on Tue Feb 18, 2014 9:58 pm, edited 3 times in total.
Cars
1996 240sx KAt28- Sold
1992 240sx RB20- Sold
1995 240sx RB25neo- Sold
1993 240sx 2jzgte- Sold
Current:
2006 Toyota Tundra
1995 240sx 2jzgte BWs366
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interesting way but i already have the JWT valve spring compressor. no air compressor needed and i dont know if that tool would work with dual conical springs setups since they are much stiffer.
good way to get them out though and nice write up and video.....i would like to see if that can be used with dual springs set ups.
good way to get them out though and nice write up and video.....i would like to see if that can be used with dual springs set ups.
Mike
S14 Kouki Conversion
Fully built KA24DE
BC V3 Cams
SR20 clutch Backing it(the irony)
T3/To4e with dual ball bearing GT CHRA
Z32 MAF
Nistune at 14psi and rising
1000cc Injectors-Precision Turbo
Self_tuned
and more....
S14 Kouki Conversion
Fully built KA24DE
BC V3 Cams
SR20 clutch Backing it(the irony)
T3/To4e with dual ball bearing GT CHRA
Z32 MAF
Nistune at 14psi and rising
1000cc Injectors-Precision Turbo
Self_tuned
and more....
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I see you used my method for getting the collets out Good vid. Might help someone for sure.
RIP Nate Moore (480sx)We will never forget you.240drew wrote:will someone go thru and show me how to wipe my ass? I am really confused, does the paper go in? ( I am just kidding) I am a bit bored.
R34SR wrote:save a tree, drag your ass on the grass.
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Yea, and the keeper installer was a great investment. I was completly shocked that the valve didn't fall down into the cylinder... it would have been my luck that it would have. Someone suggested to another user that it would be easier to take the head off to do it. Rather than pulling the head off this 240 like I had done in the past which as many know is a time consuming job I just figured what the hell. If it doesn't work my sunday job turns into a sunday monday tuesday job. (including work and school) But I don't see how someone can say taking the head off is easier than doing it that way.
Cars
1996 240sx KAt28- Sold
1992 240sx RB20- Sold
1995 240sx RB25neo- Sold
1993 240sx 2jzgte- Sold
Current:
2006 Toyota Tundra
1995 240sx 2jzgte BWs366
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that may have worked fine but, think about all the heating and cooling the valves have been through. One sharp jolt to a valve would break them.If you knocked the collets out, sure you would have a piston to hold it up, but when you reinstall the valve you are hammering your valve into the head of the piston. Say you broke one, you probably wouldn't know until you started the motor. Then your stuck doing a new valve and taking the head off, at least quite possibly 4 new valves, a piston and you may get away with a hone. My pistons were all rotated at 1/2 way, so as to aviod this issue, the other way to do this without a compressor is to thread some rope down into the cylinder, that just screams FOD, i opted to go another route using compressed air as it seemed the safest option. That being said, I didn't mind if a valve fell into the cylinder, I just prefer it not too, had that happened i would just make my life a bit more "FUN" .
Cars
1996 240sx KAt28- Sold
1992 240sx RB20- Sold
1995 240sx RB25neo- Sold
1993 240sx 2jzgte- Sold
Current:
2006 Toyota Tundra
1995 240sx 2jzgte BWs366
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the piston doesn't touch the valve at tdc. yes they are interference engines, but the valve would still drop some. without using air pressure or some other way of keeping the valve closed, i don't see how you could get the collets to come out. looks like it would just push the valve open. plus if they did come out, the valve would fall and you'd never get them back in.ultimase wrote:Odd, when I did my valve seals all I needed to do was rotation the piston in that cylinder to TDC and the valve wouldn't budge. I had the compressor ready, and the fitting for the spark plug as well, but I figured I'd give it a try. Didn't budge. Maybe it's different for an altima?
anyways, to the op, good job on the vid. it could have been more clear (better lighting), but it still gets the point across.
frankie
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I was really looking for my tripod, but the little fairy that steals all kinda a crap from my room made it disappear... and as for lighting, i have no defense it was crappy and i agree it could have been much better. owell.
Cars
1996 240sx KAt28- Sold
1992 240sx RB20- Sold
1995 240sx RB25neo- Sold
1993 240sx 2jzgte- Sold
Current:
2006 Toyota Tundra
1995 240sx 2jzgte BWs366
Actually it might have something to do with the tool I'm using. It's a leverage tool, not the punch you guys are using.fos240 wrote:the piston doesn't touch the valve at tdc. yes they are interference engines, but the valve would still drop some. without using air pressure or some other way of keeping the valve closed, i don't see how you could get the collets to come out. looks like it would just push the valve open. plus if they did come out, the valve would fall and you'd never get them back in.ultimase wrote:Odd, when I did my valve seals all I needed to do was rotation the piston in that cylinder to TDC and the valve wouldn't budge. I had the compressor ready, and the fitting for the spark plug as well, but I figured I'd give it a try. Didn't budge. Maybe it's different for an altima?
anyways, to the op, good job on the vid. it could have been more clear (better lighting), but it still gets the point across.
frankie
http://www.amprotools.net/Product_List. ... &mode=show
I don't remember if the valve dropped that much, but this tool pretty much allowed me to push down the springs quite a bit. I didn't have any trouble getting the keepers back onto the valves.
The weird thing was that link I posted was actually available at one time at autozones. No luck getting it anywhere near here. I ended up buying a identical one on ebay. The JWT one was temping, but I figured was only going to be useful for Nissans, since this is a bit more universal if I ever need to do it again on another car I have the tools.fos240 wrote:that tool looks pretty nice. where did you get it?
frankie
Really was quite useful, and made the entire process pretty easy to do. When I went back through again because I was paranoid and forgot if I tapped the first few down with a rubber mallet it only took me a few minutes to get everything apart and back together again.
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those spring compressors are great... the only issue is they cost about 120$. again i did this for much less including parts and shipping.
Full head set-40$ beck arnley
Keeper remover-15$
air hose with adaptors-25$ -that was the price of my compression tester as well for the fitting to the spark plug.
magnet-1.99 i think i may have over paid
air compressor- if you really want to count it would boost the price by a bunch but i already had that, and its not entirely nessicary.
Full head set-40$ beck arnley
Keeper remover-15$
air hose with adaptors-25$ -that was the price of my compression tester as well for the fitting to the spark plug.
magnet-1.99 i think i may have over paid
air compressor- if you really want to count it would boost the price by a bunch but i already had that, and its not entirely nessicary.
Cars
1996 240sx KAt28- Sold
1992 240sx RB20- Sold
1995 240sx RB25neo- Sold
1993 240sx 2jzgte- Sold
Current:
2006 Toyota Tundra
1995 240sx 2jzgte BWs366
Well new they're about 120, ebay wasn't nearly that much. I do feel it was worth it though. Too bad I didn't see you wanting to do this before you bought the tools, I probably could have been convinced to "rent" it out as it's just sitting in my tool box right now. Nice vid nonetheless.240drew wrote:those spring compressors are great... the only issue is they cost about 120$. again i did this for much less including parts and shipping.
Full head set-40$ beck arnley
Keeper remover-15$
air hose with adaptors-25$ -that was the price of my compression tester as well for the fitting to the spark plug.
magnet-1.99 i think i may have over paid
air compressor- if you really want to count it would boost the price by a bunch but i already had that, and its not entirely nessicary.
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i gotta get my hands on those ! pretty sweet video too, very handy
1993 240sx Coupe 5 Speed
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*'91 Ka Rebuild w/ stock internals
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^July'12-Traded for a '03 zx6r 636
1969 Datsun 1600 Roadster Build
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interesting...
hey guys,
i have just joined and i like the concept.
sounds good to me!!!!!
i have just joined and i like the concept.
sounds good to me!!!!!
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Re: How To: KA24DE Valve Stem Seals w/ head on + Video
The piston doesn't touch the valve at tdc. Yes they are interference engines, but the valve would still drop some. Without using air pressure or some other way of keeping the valve closed, I don't see how you could get the collets to come out.
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Re: How To: KA24DE Valve Stem Seals w/ head on + Video
No need for a pressure regulator to maintain the flow of air?
You know, somebody actually complimented me on my driving today. They left a little note on the windshield, it said 'Parking Fine.'
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Re: How To: KA24DE Valve Stem Seals w/ head on + Video
I did not use a pressure regulator the cams are all out leaving the valves all closed so the only point of exit is around piston rings and valves so its very unlikely to cause issues. I have a larger compressor 30gal but only 5 cfm and it kicked on many times while it was feeding the cylinder it never got below 60psi. I would say at a minimum have a 6 gallon tank, it probably wouldn't take more than 30 psi to keep them up to where you could removed the collets, and much less just to hold the valve in the head... Yes I realize this is an answer to an old post.
Cars
1996 240sx KAt28- Sold
1992 240sx RB20- Sold
1995 240sx RB25neo- Sold
1993 240sx 2jzgte- Sold
Current:
2006 Toyota Tundra
1995 240sx 2jzgte BWs366