Alright Sentra Brothers, Im changing my Timing Chain in about two weeks and at the same time while shes open Im going to put in the JWT cams that they developed for the GA16DE Engine. My questions are this: would I feel a difference in power at all? Has anyone installed the JWT cams in their GA16DE motors? Any problems? and is reliability an issue? Any help would be so greatly appreciated.....If ever there were any questions about Sentras I have, this is the place to get the answers.....Thanks!
By the way shes got 90 K on the odometer so I think it would be wise to change the chain ya think?
Does the owner's manual say anything about cam chain maintenance? Does the factory service manual offer any cam chain maintenance information?
In the case of the SR20, there is nothing about cam chain replacement intervals because the chain is expected to last the life of the engine. Quite a few SR20s are over 200,000 miles on the original chain. I can think of only one SE-R owner in the past four years who had a cam chain break.
I'll wager you will find the same life expectation for the GA16 cam chain.
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Bruce in Houston
'94 Nissan Sentra SE-R w/ $tuff, converting to ITA
'98 Suzuki Bandit 1200S w/ $tuff
'02 Dodge Dakota SLT 4-dr tow beast, stock!
Thanks man.....I was thinking the same thing but wasent sure. I myself havent heard a lot of people that have chained the timing chain at all either, whether they have the SR20 or GA16DE. Thanks again dude!
Yes you are correct that information can be found about the JWT cams here, but it states nothing as in terms of chain replacement or if the chain needs to be replaced at all. Info is on the cams not on the other factors that go along with the changing of the cams. Just advising you....no disrespect.
Originally posted by Sentra GTR-1 Yes you are correct that information can be found about the JWT cams here, but it states nothing as in terms of chain replacement or if the chain needs to be replaced at all. Info is on the cams not on the other factors that go along with the changing of the cams. Just advising you....no disrespect.
Part of your initial question was in regards to whether the power could be felt. So I provided a couple links that provide that information.
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The ecu is not required, but as stated, makes the best use of them.
As far as installation. You do not ahve to replace the timing chain. It simply gets removed from the cam gears. The JWT instructions make it EXTREMELY easy to install them. It just takes time and patience.
the only thing in regards to the timing chain i would replace (since its going to be open) is the upper guides and tensioners. ive had two of these engines and on both they went out at about 110,000 miles.
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95 200sx timing advanced to 15*, custom cai, Stromung exaust (no cat), b&m short throw shifter, rusted out fenders, worn suspension, creaking balljoints, cracked windshield and bad cv axles. your regular hooptie that requires 92 octane.
That's my case as well, landlord. I have had two of these engines and the previous owner (who owned both B12's) told me his chain broke at 111,000 and his wife's broke at 108,000 (which is now my girl's). No more chains here, just a some good 'ol belts. I would change the chain anyway as preventive measure seeing that it will be off......
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You must pay to play! Boost ain't cheap! {x2 B12 Sentras with CA18DET engines}.
The timing chain will not be off if you are talking about a GA16. It will only be removed from the camshaft sprockets. There are actually two chains. On that goes to the crank sprocket and idler sprocket, and one that goes from the other side of the idler to the camshaft sprockets. It simply lays around the idler sprocket and gets re-attached to cam sprockets afterwards. To remove the entire chain assembly is much more involved. I even swapped my cylinder head and the timing chain still did not have to be removed.
If you do choose to change it, it is more in depth than the cam install FWIW.
The Ga16de is of the same nature, but you're correct! Look at it this was, he can change that and anything else while he's working on that side of the motor and it's good preventive maintenance.
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You must pay to play! Boost ain't cheap! {x2 B12 Sentras with CA18DET engines}.
Cam info.
Linear Mode
