VA KA24DE mechanically locked timing tensioners - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

B144 · 12-02-2014, 04:52 PM

Up for sale are NEW mechanically locked timing chain tensioners. I buy new tensioners and perform the modifications. Utilizing stainless steel set screws no concerns over corosion/rust/strength. Check out the youtube video below for demonstration on a mock up block. To view a discussion over theory of design, visit this link http://www.ka-t.org/viewtopic.php?f=40&t=61864

$225

paypal [email protected]

Thanks for looking!!!!

VIDEOS demonstration below on a mock up block
I tried to embed the videos. heres the direct links. help me if you can

stock unlocked
http://www.youtube.com/embed/Zw7ZIKu...yx5tm70uj4htpQ
modded/locked after setup
http://www.youtube.com/embed/UfCWfrd...yx5tm70uj4htpQ

Sr20SilviaS13 · 12-03-2014, 06:10 AM

Have you actually tested these on a running engine for an extended period of time or under loads? Something tells me you will chew through guides and these are going to be noisy as fuck.

B144 · 12-03-2014, 10:34 AM

There is still oil pressure being applied to the back side of the piston forcing it against the chain like in the stock setup. This keeps it off the set screw. Factory tensioners of the same design (SR20, F20c,F22c, K20, K24 ect ect) are quiet as they are assisted by oil pressure.

S-Verteen · 03-17-2015, 03:32 PM

I just installed a set of these, copied the design and will be forcing much air through the engine. It will take time to post results 3mm of lash is my preset and its a 6062 turbo.

S-Verteen · 05-29-2015, 09:42 AM

The car is running megasquirt and was a little togh to start before. Since the mod it seems to pop off a little easier and quicker. Hope to get to the dyno soon and get back with more positive results.

DAGeorgie · 03-28-2017, 07:07 AM

has anyone tried this? i know many cars have ratchet lock tensioner like sr20 k20 etc. i have not found anything except info from this guy selling them.

Woodz · 03-29-2017, 10:31 PM

In theory sounds legit. Glws

S-Verteen · 06-30-2017, 02:35 PM

Tuned the car at 10psi 93oct 272s so far so good just working out any issues before cranking the boost. I ruined 1 set of these trying to make them 225 is a good deal lol

jumboflan · 07-01-2017, 03:53 PM

I took my timing chain cover off and made sure the tensioners were free of gunk and sliding in its piston freely. Sometime when lazy people don't change oil for 10k or more miles it gets gunked up. And, you have to inspect the chain tensioners. Mine were good. but that was 10 years ago. I should probably crack it open to make sure oil squirters work.

S-Verteen · 08-28-2017, 11:14 AM

Just wanted to put up results after the dyno yesterday 559 wheel hp 470 torque with these tensioners. Need bigger injectors now!

Dyno: Larssens Diesel Performance

Tuning: Admin Tuning / Mocef

S-Verteen · 08-03-2018, 07:44 AM

Just tore the engine down to do 12mm head studs and bigger valves. Virtually no wear on the tensioners after numerous dyno pulls, 2 drift events and some street driving.

rogues13 · 08-03-2018, 07:13 PM

Would there be any benefit of running these on a stock motor?

TheRealSy90 · 08-04-2018, 08:34 AM

I don't see why there wouldn't, since horsepower doesn't really have an effect on timing hardware, and other engines (sr20 for example) have mechanically locked tensioners from the factory which these are just emulating.

rogues13 · 08-04-2018, 11:45 AM

Quote:

Originally Posted by TheRealSy90

I don't see why there wouldn't, since horsepower doesn't really have an effect on timing hardware, and other engines (sr20 for example) have mechanically locked tensioners from the factory which these are just emulating.

Thank you. I am trying to fix the “marble in tin can issue right niw and just saw this” I havent bought any new tensioners yet soo.. Would there be an advantage of running it on stock?

hooligans661 · 08-06-2018, 12:33 AM

That is awesome!! I might be interested haha...I’ve just added a secondary spring to mine that I’ve picked up at Home Depot. It’s a little smaller in diameter than the original one so it fits right through and about the same tension more, less..Hopefully it helps a little when I get my motor up and running lol.

12-02-2014, 04:52 PM	#1
B144 Join Date: Feb 2007 Location: va Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	KA24DE mechanically locked timing tensioners Up for sale are NEW mechanically locked timing chain tensioners. I buy new tensioners and perform the modifications. Utilizing stainless steel set screws no concerns over corosion/rust/strength. Check out the youtube video below for demonstration on a mock up block. To view a discussion over theory of design, visit this link http://www.ka-t.org/viewtopic.php?f=40&t=61864 $225 paypal [email protected] Thanks for looking!!!! VIDEOS demonstration below on a mock up block I tried to embed the videos. heres the direct links. help me if you can stock unlocked http://www.youtube.com/embed/Zw7ZIKu...yx5tm70uj4htpQ modded/locked after setup http://www.youtube.com/embed/UfCWfrd...yx5tm70uj4htpQ

12-03-2014, 06:10 AM	#2
Sr20SilviaS13 Zilvia Junkie Join Date: Aug 2010 Location: Derry NH Age: 35 Posts: 359 Trader Rating: (4) Feedback Score: 4 reviews	Have you actually tested these on a running engine for an extended period of time or under loads? Something tells me you will chew through guides and these are going to be noisy as fuck. __________________ I do motor swaps in exchange for lunch.

05-29-2015, 09:42 AM	#5
S-Verteen Leaky Injector Join Date: Jun 2013 Location: Quad Cities Posts: 96 Trader Rating: (0) Feedback Score: 0 reviews	1st start The car is running megasquirt and was a little togh to start before. Since the mod it seems to pop off a little easier and quicker. Hope to get to the dyno soon and get back with more positive results.

03-29-2017, 10:31 PM	#7
Woodz Leaky Injector Join Date: Nov 2015 Location: 90638 Posts: 147 Trader Rating: (2) Feedback Score: 2 reviews	KA24DE mechanically locked timing tensioners In theory sounds legit. Glws

07-01-2017, 03:53 PM	#9
jumboflan Zilvia Junkie Join Date: Jun 2008 Location: San Francisco Age: 43 Posts: 327 Trader Rating: (2) Feedback Score: 2 reviews	I took my timing chain cover off and made sure the tensioners were free of gunk and sliding in its piston freely. Sometime when lazy people don't change oil for 10k or more miles it gets gunked up. And, you have to inspect the chain tensioners. Mine were good. but that was 10 years ago. I should probably crack it open to make sure oil squirters work. __________________ Im immune to bullshit....so put your shovel away.

12-03-2014, 10:34 AM	#3
B144 Join Date: Feb 2007 Location: va Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	There is still oil pressure being applied to the back side of the piston forcing it against the chain like in the stock setup. This keeps it off the set screw. Factory tensioners of the same design (SR20, F20c,F22c, K20, K24 ect ect) are quiet as they are assisted by oil pressure.

03-17-2015, 03:32 PM	#4
S-Verteen Leaky Injector Join Date: Jun 2013 Location: Quad Cities Posts: 96 Trader Rating: (0) Feedback Score: 0 reviews	I just installed a set of these, copied the design and will be forcing much air through the engine. It will take time to post results 3mm of lash is my preset and its a 6062 turbo.

03-28-2017, 07:07 AM	#6
DAGeorgie Join Date: Mar 2016 Location: hampton NH. Age: 41 Posts: 18 Trader Rating: (0) Feedback Score: 0 reviews	has anyone tried this? i know many cars have ratchet lock tensioner like sr20 k20 etc. i have not found anything except info from this guy selling them.

06-30-2017, 02:35 PM	#8
S-Verteen Leaky Injector Join Date: Jun 2013 Location: Quad Cities Posts: 96 Trader Rating: (0) Feedback Score: 0 reviews	Tuned the car at 10psi 93oct 272s so far so good just working out any issues before cranking the boost. I ruined 1 set of these trying to make them 225 is a good deal lol

08-28-2017, 11:14 AM	#10
S-Verteen Leaky Injector Join Date: Jun 2013 Location: Quad Cities Posts: 96 Trader Rating: (0) Feedback Score: 0 reviews	Just wanted to put up results after the dyno yesterday 559 wheel hp 470 torque with these tensioners. Need bigger injectors now! Dyno: Larssens Diesel Performance Tuning: Admin Tuning / Mocef

08-03-2018, 07:44 AM	#11
S-Verteen Leaky Injector Join Date: Jun 2013 Location: Quad Cities Posts: 96 Trader Rating: (0) Feedback Score: 0 reviews	Just tore the engine down to do 12mm head studs and bigger valves. Virtually no wear on the tensioners after numerous dyno pulls, 2 drift events and some street driving.

08-03-2018, 07:13 PM	#12
rogues13 Leaky Injector Join Date: Mar 2018 Location: North Carolina Posts: 73 Trader Rating: (1) Feedback Score: 1 reviews	Would there be any benefit of running these on a stock motor?

08-06-2018, 12:33 AM	#15
hooligans661 Zilvia Junkie Join Date: Jan 2010 Location: CenCal Age: 40 Posts: 336 Trader Rating: (11) Feedback Score: 11 reviews	That is awesome!! I might be interested haha...I’ve just added a secondary spring to mine that I’ve picked up at Home Depot. It’s a little smaller in diameter than the original one so it fits right through and about the same tension more, less..Hopefully it helps a little when I get my motor up and running lol.