Question about 1990 Lexus ES 250

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Lexus es 250 1990

I put the timing belt on an the car now runs rough do the mark on cam 1 & 2 face up the bottom on what

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  • manish jay Feb 06, 2009

    no i thought it was cool to take off and replace

  • manish jay Feb 17, 2009

    the lexus was a problem but i got it, the car had to be set by the h-balancer dont know why but it work car runs fine thankz everyone that tried

  • yadayada
    yadayada May 11, 2010

    Buy a factory manual my friend. U where very lucky on this one.

  • diamanteguy May 11, 2010

    be thankfu lthis isn't an interferance engine (if it was you would of just trashed the heads and maybe a piston)

  • yadayada
    yadayada May 11, 2010

    WELL U SCREWED IT UP SO NOW SOMEONE ELSE CAN FIX IT. IF U ARE GOING TO DO A JOB LIKE THIS BREAK LOOSE WITH SOME CASH AND BUY A USED MANUAL OFF EBAY, REALLY A SMART THING TO DO.

  • yadayada
    yadayada May 11, 2010

    DID U FOLLOW THE FACTORY REPAIR INSTRUCTION MANUAL.

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The marks on the cam sprockets point up and they should align with the marks on the rear timing belt cover (behind the sprockets)

Posted on Feb 06, 2009

  • James morgan
    James morgan Nov 08, 2013

    there are 2 marks on the right hand side.A strait line and 1 round mark which one is the right one

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Lexus sc430 had code for bank 1 timing had belt replaced now has codes for both banks repair shop said it was from having brought them aftermarket belt said ok for them to use factory belt still runs


They didn't get the timing correct. One tooth off will pop a code. Causes rough running. In my case the tensioner didn't put enough tension on the belt. I had to take it back apart and pry on the tensioner to get the pressure up, then lock it down.. Got rid of the codes(both sides).

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Yeah, it's time for the timing belt. The crank and the cams sensors have to be on the the exact timing marks. When the belt gets old and start to stretch, it will pop the code. If you do it yourself, get a manual for it and follow it to a "T"

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How to put back the timing belt


line up the lines on the belt with the dots on the sprockets and you cant miss.there is also two small dimples on the cover behind the cam sprockets that you can use to line up dots on face of cam sprockets with.the belt should have marks to indicate which side faces outward toward front of vehicle.turn crankshaft until dot on its sprocket is in roughly the five oclock position.align solid line on belt with this dot(area of belt with words on it will need to be between cam sprockets.i find it helpful to wedge a piece of cardboard between belt and lip on oil pump to hold belt in position on crank sprocket.next align the next solid line with the tooth on the DRIVERS cam sprocket that has the dot on it.....this shoul be roughly two oclock position.lastly align the hashed line on belt withdot on passenger side cam sprocket....this will be in roughly the 11 oclock position.loop remainder of belt behind tensioner pulleyand set tension.as long as themarks on the belt line up with marks on sprockets properly you cant miss.

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I have a lexus es 300 with same problem i changed timing belt , tensioner new sparolugs new water pump, and wen i first started runs real smood but once is hot i drive for a 10 minutes fail again i put my...


Lexus Is very particular on thier settings for the timing.It has to be on the mark, with no slack. They will run, But if the belt is not super tight it will throw timing faults. When I do timing jobs I use a pry bar and put as much pressure that I can on the belt tensioner.before I tighten it down. This assures me that the is no slack and actually stretches the belt. very little stretch, but it does. Since I started doing this I haven't had any problems with any timing jobs that I do.
Good luck

Feb 24, 2011 | 2000 Lexus ES 300

1 Answer

Timing belt is one tooth off on both cam pulleys and crankshaft after i rotate motor 720degres


i think you will have to be more specific here as iam not sure exactly what you mean ,if the timing belt has marks on the back for timing then as you turn engine the belt will only align up with these marks once every 500 or so turns ,so long as the marks are correct to start with and none of the gears have moved when appluing the tension to the belt then their is nothing to worry about ,just make sure the bottom pulley nut is tight and you applied some locktight on the thread then no problem ,if you had put white paint on the gears/backplate then you see that when you turn the engine they line up again but the white lines do not

Feb 22, 2011 | 1992 Lexus Es 300

1 Answer

I need timing marks trying to install new belt


the crank sprocket has an indention in it and it lines up with the small protuding dot on the block. the cam gears have recessed marks in them, and they line up with the v shaped cutouts of the back of the timing cover.

Oct 07, 2009 | 1994 Lexus Es 300

1 Answer

NEED THE TIMING MARKS ON MAIN CRANKSHAFT LEFT CAM SHAFT TIMING MARK AND RIGHT CAM TIMING MARK TO SET THE TIMING ON A 1993 LEXUS ES 300


Sorry for the delay.
I am personally going back to answer your unanswered question. I do not know if you still need the answer, but I am going to answer it in case you still do.

Click on the following direct Link. It has the Timing Belt/MARK(S) Diagrams that you will need, complete with Instructional and Directional Diagrams.

Again my apologies...
Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

http://www.2carpros.com/car_repair_information/year/1993/make/lexus/model/es_300/1993_lexus_es_300_timing_belt_diagram_marks.htm

Jun 30, 2009 | 1993 Lexus Es 300

1 Answer

Timing belt settings


the tension setting for the belt?

or the timing marks? the timing marks differ. best set cyl. no 1 to tdc.. take out no. 1 spark plug and put sumthin long and thin down the hole.. like a long quarter drive extension.. and check to see that cyl 1 is at tdc.. then set your cam to the OT marks marked on the cam pulley and rocker cover... then you have to set the distributor also.. slacken the 13mm bolt for the dizzy clamp... you will find a line on the lip of the dizzy body.. this needs to align with the middle of rotor arm tip... (sumtimes a mark on the roror arm tip)... tension belt and your timing is set.. set your timing incorrectly and the car will run rough and not rev past 5k...

Sep 26, 2008 | 1993 Volkswagen Golf

1 Answer

Trying to set the timing on this car with a new engine,please help.


timing belt replace v6 engine turn the crankshaft clok wise slowly and make sure that nothing is stoping it for turning, until the key on the mark reach 12 o clok (TDC) the piston no 1 is att the top dead center .if the piston stop before reaching the top dead center ,,,,,one valve or two are open and the cam have to be ajust so dhat valve can close up,,,,,, so after the crank alignement ,the two cam marks at LEFT CAM 2 o clok right cam10 O CLOK ,,,note the belt slack must be on the tensioner side

Aug 03, 2008 | 1990 Lexus ES 250

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