timing belt job went bad

[95-J30tt]

it took me more than 10 hours working with a friend on the timing belt on my j, now it is extremely hesitating, a huge loss of power, and a clicking noise, i checked the allignment of the belt three times, and did the work according to the service manual and the links posted here, i would appreciate your suggestions on this issue, what should i do....... , i hope i wasnt damaging my engine when i turned it on......... P/S the job was to only change the belt

[q45j30guy]

that really sucks. I feel for you and admire your ambition. I gave in and let the dealer do mine which cost me a grand. I know you said you triple checked but sounds like the belt is off 1 or 2 teeth.

good luck

[NismoChi]

I sound like the timing is off. Yo did align the five points that have the alignment marks, right? Not 3, not 4, but 5. one on each cam gear, and one on the crank gear. The one on the crank gear is a little tricky to see. Also , after you line them you, did you turn the crank a couple turn by hand and check and recheck the alignment mark? We have interference engines, I hope you didn't bend any valves. One silly question, you did take out the bolt you put on the tensioner to release the tension, right?

[Ebbtide]

That sucks, and though I never did the job myself, I notice there are timing marks. Can the timing be advanced or retarded on these cars?

[95-J30tt]

thank you for your replies, i did allign the five marks and that was hard to do on the passanger side because one of the sprokets "upper passanger side" spun approx. 10 digrees violently, but i'm sure that it didnt hit the piston..... about the tensioner, i made sure to set it to 4mm before removing the bolt..... i'm investing another 5-10 hours today to allign the belt again, i will remove the timing belt and start from scratch, i took alot of pictures as i was working, so i guess it will help in removing everything again.... i appreciate your input on this matter........ thank you

[yodawill2000]

I cant help you solve this issue but I sure would like to see you post those pictures.All the true blue J owners will be where you are someday soon .

[greenwar]

Dang man. Sorry to hear this. Good luck on fixing the issue and I hope the valves are still ok.

[95-J30tt]

thank you for all your responses, i will post all the pictures and write up the procedure over the weekend, i worked on the issue today, it took me less than 6 hours this time, i opened everything again, got to the timing belt, seemed alligned, but i still took it out to reallign it, put everything back and now the car works without any knocking sound, but there seems to be an issue with the response of the car, the response to the accelerator is slow, the performance is slugish..... when i press the accelerator, the car starts moving quite slower than before the timing job, and all the sudden above 3rpm it returns to normal performace, i would appreciate your input on this matter

[DominickJ30]

You are sill either one tooth off, or you moved you crank angle sensor changing your ignition timing.

Get a timing light.

[95-J30tt]

i was checking my work and i noticed that there is a mark on the crank pully and there are some allignment marks on the bottom metal timing belt cover, and when i turn the crank pully to the zero mark i notice that all the top four sprokets misallign by one tooth,although when i removed the belt last night, all the allignment marks on the crank gear and sprokets seemed fine, i would really appreciate your feedback on this issue

this picture shows the crank pully alligning to the five digrees mark, the picture was taken before i removed the old timing belt, but now, when i allign the pully to the zero mark, all sprokets are misalligned by one tooth counter clockwise, in other words, for all the top 4 sprokets to allign i have to move the crank pully clockwise past the zero mark
Modified by 95-j30t at 8:31 PM 9/1/2006

[elan]

Are you using an OEM Nissan belt ? I remember there was a post several months ago when the problem was due to the marks on the belt been placed wrong. That was not an original belt. When the person replaced it with the OEM one everything went well.

[DominickJ30]

Yea I remember that too. It was a Napa belt.

[NismoChi]

I took this after i put everything back together, and everything align just right. I'm thinking something wrong with the belt ,too.

[95-J30tt]

thank you for your replies, i put in another 5 hours or so doing the job for the third time, and i guess third time is the charm........ the belt is fine, i counted the teeth again, but this time i refered to the picture i posted above because that picture was taken before i removed the old timing belt "when the engine ran fine", so while installing the new belt, i put the crank shaft pully half way back, and made sure that all sprokets alligned while i'm on the five digree mark, and it ended up being that the crank gear is misalligned by one tooth, and that was causing all these problems, now the car is running just like day one, thanks for your feedback and i appreciate all your input, i'll be posting the procedure withen this weekend, i'll also post detailed pictures, i hope it will help avoiding mistakes, and to give people the confidence to do such a job on thier ownBTW, this will probably sound stupid but how can i post multiple pictures in one topic.......??

[yodawill2000]

Great News !!GJ !

[95-J30tt]

i have completed typing the procedure and inserting pictures, the MS word file is approximately 6.5 megabites, i dunno how to post it, your help is appreciated

[yodawill2000]

Do you have any web storage with your internet provider ?

[95-J30tt]

i'm going to check that, so i guess if i do have storage then i can just upload the file in there and provide a link

[cortheal]

hi...my timing belt popped broke etc.....am i screwed with it being repaired? new engine etc...etc.....or will i be ok? and just pay for it?

c

please help anyone!!!

93 j30 160,000 miles

[95-J30tt]

man that really sucks, i'm sorry to hear that, if the engine was on when that happened, the only thing i can say is a new engine these engines are low tolarance, which means that if the timing belt fails for any reason, then the pistons will hit the vavles and damage them... the engine code is ( vg30de )

[cortheal]

hi......i think my timing belt broke...i have 160,000 miles on her.....am i screwed due to the belt breaking in the motor?

please help a man out!!

asap

[cortheal]

hi ...if it was running when i turned it off..it should be ok huh?

i mean it was runing then i shut it off and went inside then went came out in 2 hours and then it wouldnt turn over or on......so it could hvae broke aftr that huh?

damnit i hope.....damn damn damn......no any one who may know...damn,,,,damn

c

[95-J30tt]

ok, first of all, the timing can break without warning at all, it can be at a start up or on a highway...... now when you started the car after the 2 hours, did it sound normal????, or did you hear alot of metal sounds.,..... if it sounded like metal hitting metal then the engine is gone.... if the timing belt breaks in the j, the valves might very well be damaged, however,the valves will tend to seat which means that the valves will close, to be more clear, the valves will tend to go as far away as possible from the pistons, but not in any way assuring that all the vavles were seated, some people are lucky, and some are not......

the only way to check the timing belt, is to open the timing belt covers on each side of the engine, if you see a belt in there, and you can feel that it is tensioned, and you cant push it or pull it out.... then there is nothing wrong with it.the driver side timing belt cover can be removed the easiest, try doing that

[95-J30tt]

to remove the driver side timing belt cover:

unplug the negative battery terminal

loosen the clamps and remove all air ducts from the top of the engine, all the black color ducts

you will be able to access the driver side timing belt cover, fist unplug the crank sensor wire, and the top aluminum hose wires (there are two on the aluminum hoses) and one on the crank sensor

now you need an 8mm socket, 10mm socket, and a 5mm hexagonal socket

there are two 10mm screws holding the wiring of the aluminum hoses to the timing belt cover

there are five screws (5mm hexagonal)

there are three screws (8mm)

start at the top and work your way to the bottom, you wont need to fully remove the cover, just make space so you can see the belt

i posted a picture with arrows referring to the screws locations, i might have missed one or two, but they will be obvious......

[95-J30tt]

i've checked with ISP and i'm only allowed 5MB , the file is almost 8MB, i tried compressing the pics, i only got down to 6MB, i'll keep trying, and i'll post the link here for anyone that needs to know about timing belt replacement

[greenwar]

95-j30t - I am very interested in your write up of the timing belt replacement. If its not much trouble, please email me a copy of the 8mb file to my email address listed on the nico profile.. Thanks.

[95-J30tt]

hi greenwar, i just sent the file to your e-mail, please let me know if it is informative enough

[newboy1]

would you send the file to my [email protected]?

Thank you

[yodawill2000]

and to [email protected] as well ??

Thanks in advance bud.

[95-J30tt]

i just sent it, hope it helps, good luck