Changed the water pump, timing belt now it won't start

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Changed the water pump, timing belt now it won't start - 8/16/2007 6:37:17 PM    raycam2kx   Posts: 15 Joined: 8/16/2007 Status: offline I Changed the water pump, timing belt ( and other belts)  and the auto  tensioner  adjuster.  Now my truck won't start. I triple checked my timing marks and rotated  the pulley  at least 3  times to  make sure  the  auto adjuster  tightened  the  timing belt. When I first tried to start the truck it sounded like it was going to start  but nothing.  Now it  just won't start. Anyone experience this or know what my problem is. 95 Montero LS 3.0 122k Post #: 1

RE: Changed the water pump, timing belt now it won't start - 8/18/2007 10:54:37 PM    matthew_m75   Posts: 46 Joined: 2/17/2007 Status: offline if you're absolutely sure your timing marks are right on after the belt is tensioned then that makes it difficult. only thing i can think of is that when you were wrenchin around u might have messed up the crank position sensor otherwise nothin u did should prevent it from starting (in reply to raycam2kx) Post #: 2

RE: Changed the water pump, timing belt now it won't start - 9/8/2007 8:37:29 AM    raycam2kx   Posts: 15 Joined: 8/16/2007 Status: offline Thanks for the reply. Internet problem now I'm back online. I have a mechanic friend helping me and hedid the proceedure  from the beginning and he said I might have damaged valves or pistons. (I doubt it though). Could there be fuel flow or electrical problem? (in reply to matthew_m75) Post #: 3

RE: Changed the water pump, timing belt now it won't start - 9/8/2007 10:25:30 AM    jpmontero98 Posts: 3326 Joined: 2/7/2007 From: when a man and women fall in love, the man........ Status: offline dont doubt....if ur timing is off u may have damaged the vavles.......could be misfires check all ur lines make sure theyre connected _____________________________ 1999 Nissan Altima GXE KA24DE, Mods: NOTHIN TO SEE HERE MOVE ALONG! My list of **** to do my CarDomain (in reply to raycam2kx) Post #: 4

RE: Changed the water pump, timing belt now it won't start - 9/8/2007 8:29:21 PM    raycam2kx   Posts: 15 Joined: 8/16/2007 Status: offline What can I do to check for damaged valves?  (in reply to jpmontero98) Post #: 5

RE: Changed the water pump, timing belt now it won't start - 9/8/2007 8:53:01 PM    jpmontero98 Posts: 3326 Joined: 2/7/2007 From: when a man and women fall in love, the man........ Status: offline u got to take off ur cam/valve covers and pull them out...they could be bent.... check these out valve study thing this helps too _____________________________ 1999 Nissan Altima GXE KA24DE, Mods: NOTHIN TO SEE HERE MOVE ALONG! My list of **** to do my CarDomain (in reply to raycam2kx) Post #: 6

RE: Changed the water pump, timing belt now it won't start - 9/8/2007 8:53:38 PM    jpmontero98 Posts: 3326 Joined: 2/7/2007 From: when a man and women fall in love, the man........ Status: offline no easy way to check...u still gotta take the upper half of ur engeine apart _____________________________ 1999 Nissan Altima GXE KA24DE, Mods: NOTHIN TO SEE HERE MOVE ALONG! My list of **** to do my CarDomain (in reply to jpmontero98) Post #: 7

RE: Changed the water pump, timing belt now it won't start - 9/8/2007 10:09:36 PM    matthew_m75   Posts: 46 Joined: 2/17/2007 Status: offline except for taking off the intake plenum checking compression is a decent way to tell you if you got a serious problem (BENT VALVES). remember an engine needs 3 things to run and if nothing else works u gotta start checking the basics fuel: fuel pressure, injectors, fuel regulator, fuel pump, fuel filter, or fuel supply and return lines clogged or pinched, also your car may have an inertia safety switch that may be tripped ignition: check for misfire might even doublecheck timing even if it is electronic, check your coils, wires, plugs, crank position sensor, cam position sensor compression: make sure you've got good balanced compression to all cylinder. if not it's probably gonna cost you by the way did you replace the belt out of maintainence or because the engine jumped time. if you never heard any kind of clanking while turning the engine over you probably don't have bent valves. and i dont know about you car but a lot of engines with timing belts are made so that the pistons can't come in cotact with the valves even if the pistons are at the top of the cylinder and valves are open < Message edited by matthew_m75 -- 9/8/2007 10:14:54 PM > (in reply to jpmontero98) Post #: 8

RE: Changed the water pump, timing belt now it won't start - 9/9/2007 5:53:47 PM    raycam2kx   Posts: 15 Joined: 8/16/2007 Status: offline I replaced the timing belt while installing a new water pump. The old one was bad. (in reply to matthew_m75) Post #: 9

RE: Changed the water pump, timing belt now it won't start - 9/10/2007 9:37:02 AM    matthew_m75   Posts: 46 Joined: 2/17/2007 Status: offline Well if you did bend the valves it would be obvious because when you crank it, the engine would sound very oddly smooth because there would be no compression. To have bent the valves your timing belt would have had to be considerably off. Most likely you either have the timing belt a couple of notches off or you forgot to reconnect something you disconnected. When you put the timing belt on did you make sure that you lined the timing marks up so with tension they were in the right spot because if you lined it up w/out tension as soon as you released the tensioner it would have moved 2-3 notches wich sounds like your problem. The fact you said it tried to start tells me that you probably have fuel and spark which leaves compression and timing, making the alignment of the timing belt suspect. I don't know if your Monty has a distributorless ignition or not but if it does make sure you didn't harm the crank or cam position sensors and that all your coil packs are working If you're certain about your timing marks then thing that is gonna tell you the most about whats going on is a compression test. Bent valves will give you a reading at or close to zero, if the timing belt is off then compresion will be much lower that specified, and if its perfect on all cylinders then you know that the timing belt isn't the problem. If that all checks out pull a plug, touch it to the engine and crank the engine to see if you got a good blue spark. if that checks out spray some starter fluid in the intake, and if that works you know you're not getting fuel. An engine needs fuel, spark, timing, and compression. Its one of them (in reply to raycam2kx) Post #: 10

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