How To: KA24DE Valve Stem Seals w/ head on + Video

Basic tech questions such as future setups, different turbo kits, car diagnosis, etc
Post Reply
240drew
Encyclopedia-Nissan
Posts: 1020
Joined: Tue Oct 14, 2008 8:54 pm
Location: Irmo, South Carolina

How To: KA24DE Valve Stem Seals w/ head on + Video

Post by 240drew »

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.

Image
Last edited by 240drew on Tue Feb 18, 2014 9:58 pm, edited 3 times in total.
Image
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
koukidriver
Dont Question My Nissan Knowledge
Posts: 829
Joined: Fri Nov 20, 2009 3:12 pm
Location: Jersey

Post by koukidriver »

+1 on the video I vote it to be a sticky thanks for your input on this subject
User avatar
kxmike87
Knows Some Stuff About 240's!
Posts: 207
Joined: Sun May 06, 2007 11:50 pm
Location: SA, Texas
Contact:

Post by kxmike87 »

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.
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....
ILuvS13s
Encyclopedia-Nissan
Posts: 1102
Joined: Sun Sep 16, 2007 7:44 pm
Location: Lousville, KY
Contact:

Post by ILuvS13s »

I see you used my method for getting the collets out :D Good vid. Might help someone for sure.
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.
RIP Nate Moore (480sx)We will never forget you.


Image
240drew
Encyclopedia-Nissan
Posts: 1020
Joined: Tue Oct 14, 2008 8:54 pm
Location: Irmo, South Carolina

Post by 240drew »

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.
Image
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
ultimase
Dreams of owning a 240!
Posts: 58
Joined: Wed Aug 17, 2005 8:59 pm

Post by ultimase »

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?
240drew
Encyclopedia-Nissan
Posts: 1020
Joined: Tue Oct 14, 2008 8:54 pm
Location: Irmo, South Carolina

Post by 240drew »

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" .
Image
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
User avatar
fos240
Knows Some Stuff About 240's!
Posts: 437
Joined: Wed Sep 21, 2005 10:06 am
Location: boonville, NC
Contact:

Post by fos240 »

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?
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.

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
240drew
Encyclopedia-Nissan
Posts: 1020
Joined: Tue Oct 14, 2008 8:54 pm
Location: Irmo, South Carolina

Post by 240drew »

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.
Image
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
ultimase
Dreams of owning a 240!
Posts: 58
Joined: Wed Aug 17, 2005 8:59 pm

Post by ultimase »

fos240 wrote:
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?
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.

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
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.

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.
User avatar
fos240
Knows Some Stuff About 240's!
Posts: 437
Joined: Wed Sep 21, 2005 10:06 am
Location: boonville, NC
Contact:

Post by fos240 »

that tool looks pretty nice. where did you get it?

frankie
klattr1
Forum Moderator
Posts: 3724
Joined: Mon Feb 02, 2004 10:22 pm
Location: Charlotte, NC
Contact:

Post by klattr1 »

User avatar
fos240
Knows Some Stuff About 240's!
Posts: 437
Joined: Wed Sep 21, 2005 10:06 am
Location: boonville, NC
Contact:

Post by fos240 »

yeah, that one is even nicer! harrrr

frankie
240drew
Encyclopedia-Nissan
Posts: 1020
Joined: Tue Oct 14, 2008 8:54 pm
Location: Irmo, South Carolina

Post by 240drew »

that one does take the cake, i will admit. But mine only cost me 15$ shipped via ebay, so i can't complain.
Image
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
ultimase
Dreams of owning a 240!
Posts: 58
Joined: Wed Aug 17, 2005 8:59 pm

Post by ultimase »

fos240 wrote:that tool looks pretty nice. where did you get it?

frankie
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.

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.
240drew
Encyclopedia-Nissan
Posts: 1020
Joined: Tue Oct 14, 2008 8:54 pm
Location: Irmo, South Carolina

Post by 240drew »

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 :roll:
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.
Image
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
ultimase
Dreams of owning a 240!
Posts: 58
Joined: Wed Aug 17, 2005 8:59 pm

Post by ultimase »

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 :roll:
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.
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.
Super Coupe
Dont Question My Nissan Knowledge
Posts: 961
Joined: Sun Nov 08, 2009 9:00 pm

Post by Super Coupe »

Nice...
240drew
Encyclopedia-Nissan
Posts: 1020
Joined: Tue Oct 14, 2008 8:54 pm
Location: Irmo, South Carolina

Post by 240drew »

having the right tools makes all the difference in the world.
Image
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
User avatar
k12ispl
Knows Some Stuff About 240's!
Posts: 247
Joined: Mon Mar 31, 2008 4:05 pm
Location: Lenoir City TN

Post by k12ispl »

i gotta get my hands on those ! pretty sweet video too, very handy 8)
1993 240sx Coupe 5 Speed
*'91 Ka Rebuild w/ stock internals
*Stage 1 clutch
*Lightweight Flywheel
^July'12-Traded for a '03 zx6r 636

1969 Datsun 1600 Roadster Build
viewtopic.php?t=52915
www.intercarofknoxville.com
johncindy
NooB
Posts: 1
Joined: Sat Jan 08, 2011 4:50 am

interesting...

Post by johncindy »

hey guys,
i have just joined and i like the concept.
sounds good to me!!!!!
User avatar
eazye2000
Encyclopedia-Nissan
Posts: 1358
Joined: Tue Jan 16, 2007 4:32 am
Location: Inverness, FL
Contact:

Post by eazye2000 »

I saw this video a while back, but it doesn't work anymore. Need a password. :(

But I think I got my head together without any issues. We'll see...
Image
240drew
Encyclopedia-Nissan
Posts: 1020
Joined: Tue Oct 14, 2008 8:54 pm
Location: Irmo, South Carolina

Post by 240drew »

Password: boosted
Image
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
240drew
Encyclopedia-Nissan
Posts: 1020
Joined: Tue Oct 14, 2008 8:54 pm
Location: Irmo, South Carolina

Post by 240drew »

Ok Made the album public, i just had to delete some pictures i didnt want my ex-girl seeing my in photobucket. :lol:
Image
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
albertrich
NooB
Posts: 1
Joined: Thu Dec 12, 2013 9:14 pm

Re: How To: KA24DE Valve Stem Seals w/ head on + Video

Post by albertrich »

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.


piston manufacturer
User avatar
Kruked
Knows Some Stuff About 240's!
Posts: 302
Joined: Fri Feb 25, 2011 12:51 am
Location: Someones' sisters pants

Re: How To: KA24DE Valve Stem Seals w/ head on + Video

Post by Kruked »

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.'
Image
240drew
Encyclopedia-Nissan
Posts: 1020
Joined: Tue Oct 14, 2008 8:54 pm
Location: Irmo, South Carolina

Re: How To: KA24DE Valve Stem Seals w/ head on + Video

Post by 240drew »

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.
Image
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
Post Reply