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Nissan Pathfinder Broken Timing Belt

11 messages,  Last post on Apr 28, 2009 at 5:10 AM

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#1 of 11 Broken timing belt by dave120 Dec 30, 2006 (5:10 pm)
Have a 1992 Nissan Pathfinder VG30E engine. The timing belt broke and I am sure that the crankshaft has moved without the camshafts moving. The shop manual states that the valves maybe bent if this happens. Two questions. #1 Is there a way to tell if the valves are bent without pulling the heads?? #2 to install a new belt what is the procedure to aline the crackshaft with the two over head camshafts to get the engine back into sync ?? Replies to this message: medley (Jan 19, 2008 3:24 pm)
#2 of 11 timing chain-pathfinder V6 2005 by jm1770 Feb 18, 2007 (11:05 am)
where is the location of timing mark for pathfinder v6 2005. or how to do the timing of it ( chain)...thanks in advance
#3 of 11 2002 Pathfinder Horrible Squealing noise when it starts! help! by gmanpath Jun 20, 2007 (6:38 pm)
Im about to take the thing in to be checked. We replaced the belts on my 02 pathfinder because they were cracked (it was at around 47K miles). Since then every time i start theres a horrible squeal. We made sure the tension was good, the pully's are aligned, nothing out of the ordinary, except for that noise. I checked power steering fluid, brake fluid, AC still works, so it cant be that. My dad thinks its a water pump, but honestly i think this is something minor. Would cleaning the pullys help? what do you suggest, i'm stumped Replies to this message: lz7hb9 (Sep 26, 2007 6:10 pm) raysz28 (Nov 01, 2007 6:59 pm)
#4 of 11 Re: 2002 Pathfinder Horrible Squealing noise when it starts! help! [gmanpath] by lz7hb9 Sep 26, 2007 (6:10 pm)
Replying to: gmanpath (Jun 20, 2007 6:38 pm) It's definitily the water pump. I am going through the same problem. The car made the sqealing noise when started only for a few seconds then it went away. The water pump completely gave out a few months later. I couldn't figure it out earlier but when the water pump really started leaking water, it was a dead give away. Currently I am in the process of changing the water pump. The problem is the crankshaft pulley bold. I can't figure out which direction to turn the bold to loosen it. I checked out the service manuals but it only says to take the pulley out. No mention of how to take the pulley bold out. I tried using a impact wrech but that didn't take it out. I only had a 9 gallon compressor. I am trying to use a strap wrench I bought at B & B hardware, here in Los Angeles CA on washington Blvd. Very difficult tool to find. I was using a 1/2inch breaker bar but that broke. Now I am getting a 3/4 inch breaker bar and try with that. I also read in some forum that some cars open the crankshaft pulley bold by turning towards the right so I plan to call the dealer tomorrow to confirm. I'll update the forum with the instructions on that. Takeing all the belts and brakets out are easy. Oh by the way, I own a Infiniti QX4 1998. Same engine principle I would think though. I am personally wondering how you were able to take the pulley bolt out in your pathfinder. Also, I am thinking of changing the timing belt while I change the water pump. Any suggestions ? Replies to this message: raysz28 (Nov 01, 2007 6:59 pm)
#5 of 11 Re: 2002 Pathfinder Horrible Squealing noise when it starts! help! [lz7hb9] by raysz28 Nov 01, 2007 (6:59 pm)
Replying to: lz7hb9 (Sep 26, 2007 6:10 pm) Any resolution on this issue? i am having the same problem with mine. it seams the outer portion of the crankshaft pulley has come loose from where the power steering pump attaches. I cant tell if there is a rubber plug that expands to hold the two pieces together or not. can you tell me what you did to fix this problem?   Thanks, Ray
#6 of 11 Re: Broken timing belt [dave120] by medley Jan 19, 2008 (3:24 pm)
Replying to: dave120 (Dec 30, 2006 5:10 pm) i can almost guarantee that the intake valves are bent. there is "0" clearance for them. i am speaking from experience, cost me $900 to repair it and i got some deals on labor..... just take one valve cover off and you will notice nothing will be moving with rockers losened..... sorry!
#10 of 11 TimingBelt by nissanshift Jul 20, 2008 (9:55 pm)
The Belt of timing should be watched much like you would watch a four year child. Kids get into things, and if you don"t watch your Belt for timing ,you could be getting into your engine. for the non wrench turning peeps THE SHOP WILL BE TAKING A CHUNK OUT OF YOUR POCKET!!!!! I say this because I failed to watch my 93 timing belt and now I"m punished from driving till i put my extra Motor in . my org. motor ran like a top,and then the timing belt broke and now don't run at all.                                         Get it muddy 4WHEELING           Life is short NissanShift 4LOW

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