how do i get the timing chain tensioner off?

 

which one?

best bet is refer to EM49 on the factory service manual, or EM42

 

i'm having to replace the water pump..so whichever one that is i guess its the front one?.. a while back i posted a thread because my car overheated and have already replaced the thermostat. after doing so i realized i'm not getting any heat and i have a Chiltons service manual which says that probably means the water pump is going out. it's an 06 model.

 

be fore you screw that poor z up take it to an professional.... ac/ alternator/crank pulley. know your belts./ ps. and your waterpump also runs with that belt acessory.

 

wow.... was just looking for some help man, i'm not ignorant. i've already got the belts off and the covers for the water pump and tensioner. I just wanted to make sure i was going about taking it off right, wanna make sure i dont break nothing *hint* "screw my poor z up". my dads a mechanic and is helping me.

 

Fwiw, I have never once seen a water pump go bad on these cars - ever

I would enlist the help of someone who knows engines to better diagnose what the problem is

If you have no heat and the thermostat is working, 9 times out of 10 it is due to air still being in the system. These cars are notoriously stubborn to bleed

Overheating can be caused by tons of things - the last thing I'd ever think to check would be the water pump, as it is purely a mechanical piece - it either spins, or it doesn't, and if the engine is turning, the pump is turning

 

would you like to explain why when i rev it up to 2,000 rpms i get heat and at an idle i get none?

 

because you likely have air in the system, somewhere

 

ok well thanks for the help ill keep an update still. Hate to say your wrong but i'm pretty sure there was no air in it, and what you said about the water pump makes no since. your basically saying the water pump can't fail because the timing chain is making it turn. With that being said your saying as long as a belt driven one has the belt on it turning its working which is not the case. water pumps go out.... they're man made they will break and just because the belt/timing chain is turning it doesn't mean its working efficiently.

 

there for you should know your belts if pops an mechanic..look im not being ignorant all im saying in reality. know what you doing before you mess something up.. i do all my work to my z and i have two. 86 turbo and z33 also.. but what you need to do is make sure you put everything back in place if you think you might for get or secod gues your self a split second label your pats. and it doesnt hurt to have your pops coatch you on what your doing.. my pops is an plumber and he hates the fact i didn't pick up after him dealing with ****.. im a car man to the bone but he doesnt realize he turned me out from a lil boy taking me to the drag events.. so all im saying is dont mess it up and you should be good also asfar as you notgetting heat in the car perform a n radiator flush and you must also kep i mind that this is an reverse flowing cooling system its not standard like most cars from the early days. so make sure you flush your system then drive it around for the coolant todo its thing and you may have to refill it up after driving pls dont take it far while doing this jo unless you want to be stranded goin up and down the block should do it and even going around the block should help you will see ur temp guage jump up to hot but dont panic and just pull over and full you radator or resivoir up..also keep in mind that you you wanto do an 50/50 mixture.. water and coolant .. cause if all coolant i will over heat and i forgot but the z has an special brand im not sure but it should be good aslong as it not premix coolant hit me back or pm me to let me know how it goes and good luck... as sorry for the way i came off..

 

good luck

 

Silver shadow
You say that you have changed the thermostat. After a thermostat replacement in a 350Z you will need to do the full water air purge routine.
As Z1 has pointed out it will not be a water pump causing your o'heating.
99% of all o'heating that can be traced to the water pump are caused by seal & bearing wear that allows water leakage, not impeller failure.
If you have a seal problem there will be water in the oil.
If you have no water in your oil, I can almost garantee that the water pump is not your problem.

 

How are you gonna come in here asking for help, provide no real information other then "i need to take my water pump off", and then be a Douche when people try to help you troubleshoot based on the info you have given us?!?!?!

Grow the F' up!! Did you do a search to see how often people have had to replace their water pump due to it being defective?? I bet you come up with next to nothing!! That should tell you it doesn't often, if ever, go. That would be more valuable information then anything Chilton's is gonna tell you! be lucky there are people like juelz86z3303 are willing to hear the bull$hit coming out of you, and still have the patience and kindness to try to help. I'm gonna leave it at that, you can F' the rest up on your own kid.

 

Oh i love know it alls. In for the future hilarity.

 

I'll 2nd that.

 

juelz i got it and i'll keep an update sounded like you were trying to say the pump was belt driven but its not i musta miss understood what you said. i got it all i'm finishing up when i get back this weekend from college.

 

and chill out halfass.... i was tying to figure out how to get the timing chain tensioner off anyway because i was replacing the water pump. i already have the water pump and everything torn down to replace it so why not go ahead and do it while im there? i never said i wouldnt take into consideration what z1 or juelz said. like i said i'll keep an update and just because they dont normally go out doesnt mean they dont.... its a man made part it will break sooner or later.

 

I would probably return the part, an avoid messing with my timing chain all together. After all that work, I imagine it would be hard to accept though.

 

As you have got yourself this far into the job of replacing the water pump to cure your or others diagnosis of your Z's o'heating. (I suspect you were well underway when you made your 1st post)

Don't now compound the problem by getting the camshaft timing incorrect on the install of the pump & tensioner.

If the Chiltons manual is not specific, ask someone here to post a EM page of the factory manual.

Also carry out the correct coolant refill procedure or you will still have your original problem.

My comments are to help you but I must point out that while you think you are not ignorant some of your comments appear to me & others to show a little bit of ignorance.

I genuinely hope you have a good outcome on this job: Good Luck

 

you have air in the system and don't waste your money putting that pump in. Is it even a nissan pump?