vibration result?HELPplease?

[wbudna1]

hello to allthis list is the greatest.well a couple of weeks ago i post about a vibration problem that i was having. i was busy with getting a job so sorry for the delay in posting. well this is the results from the nissan dealer.I have a the number 5 injector that is open- needs replace- $624.22 to replaceAnd the dealer told me that i need the timing chains-guides replace- $3800.00I have limited money and have experience with working on cars.i was looking over some of the post on timing chain replacement and i wanted to replace them myself to save some money.what all is invloved in doing the job right?how long would it take to replace my guides?what all parts will i need to complete the project?how much money for parts?do you think it can be done in one weekend?i have a 91 with 155000 miles on it. i just bought it about 3 months ago. i want to keep it for a long time. this car is great.thanks for your help.wilford

[maxnix]

If you have the tools, place to work and the experience, both jobs can be accomplished by you.

There are extensive posts, and judging by your questions, you have not read them all. I would encourage you to do that on this Forum and on the Infiniti Mechanic Forum so you can better assess the time and complexity issues.

Doing either in one weekend might be a little ambitious, but they both definitely need to be done before you drive the car any more.

Look to http://www.everythinginfiniti.com for your parts. And be sure to secure a factory service manual prior to either job.

[wbudna1]

whats the minimum parts that i have to replace with the chain guides?thankswilford

[DAEDALUS]

http://www.nissaninfiniticlub....48968Read through for chain guide parts.

http://www.nissaninfiniticlub....=1632Chain guide how-to (without chains).

Why did the dealer say you should replace your guides/chains? Most dealers won't admit they're a problem until after a failure.

http://www.nissaninfiniticlub....49246http://www.nissaninfiniticlub....41049Some injector info. If your hoses are original, it's unlikely you'll be able to replace the injector without removing the plenum and replacing all the hoses. It's definitely not recommended.

[wbudna1]

i dont know why the dealer told me that my guides need replacing, BUT how can they tell that the guides needed replace without taking anything apart?i will order my parts soon and start working on my injectors first then move on to the guides. i hopt i can get it done in three days.thanks for the replys.

[DAEDALUS]

BUT how can they tell that the guides needed replace without taking anything apart?

Exactly. There really aren't any tell-tale signs of failure; if the guides fail and cause a timing chain issue, it's usually sudden. Ask them how they came to their diagnosis.

[maxnix]

i hopt i can get it done in three days.

Patience will be rewarded, grasshopper. Go slow, be correct.__________________Brian1995 Q45 & Q45t & 2000 Q45

Discover the power of the button!

[Jesda]

Im curious as well. I wonder how many customer's theyve had to deal with who endured early guide failures?

The clock is ticking on my Q, which remains parked and covered.

[wbudna1]

I will call then up today and ask why. I when to a southlake nissan dealer in indiana. this is what it said on my statement:check an found #5 fuel injector open- need replace car also has worn timing chains, estimate to repair $3800 must go back to infiniti dealer for repair, need special tools.Can the nissan dealer look my vin and get the history on the car?

[maxnix]

Can the nissan dealer look my vin and get the history on the car?

Good question. If not, call Infiniti Customer Service if no dealer is nearby.__________________Brian1995 Q45 & Q45t & 2000 Q45

Discover the power of the button!

[90Q45blue]

Im curious as well. I wonder how many customer's theyve had to deal with who endured early guide failures?

The clock is ticking on my Q, which remains parked and covered.

FYI: here's the information I got from the service records on the car I just bought.

At 47,712 miles...Cranks but won’t start. Also, loud grinding noise. Tore down engine and found right side timing guide had broken and timing chain had jumped. #8 cylinder valve broken/walls badly scored. Replaced engine.

It can happen at any time.

Nick

[DAEDALUS]

I wonder if that's the one I read about...the one that I mentioned in the other forum that failed around 48k? What are the odds?

[oxs1]

I had the same vibration problem but i had the pistons changed and the rings replaced and it runs smooth now.

[oxs1]

I also forgot to mention that i had my heads resurfaced and my cylinders honed and my injectors blueprinted (cleaned).