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I`m having trouble getting timing set on my 94 tracker i get tdc and the valves are closed but the cam shaft sproket is 180degrees out

Posted by johnnydsmith on

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Anonymous

  • 10 Answers

SOURCE: timing zx2 escort TDC ?

The cams have a notch in the back of them (facing driver's side) in which fits a flat piece of steel to lock the cams in place. The notches are not exactly centered on the camshaft, meaning that it's impossible to set them 180 degrees out, because then the flat piece of steel that is supposed to be inserted to lock the cams in place simply won't fit because the top of the cylinder head will get in the way. I highly recommend getting a Hayne's or Chiltons manual if you don't already have one. It should explain this process under the Timing Belt Replacement instructions. The cam lock tool (that flat piece of steel) can be purchased at ZXturner.com:
http://zxtuner.com/product.sc?categoryId=23&productId=191

Posted on Jun 29, 2008

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Anonymous

  • 10 Answers

SOURCE: had a cambelt break on

Its because your pistons on 1&4 are up top that is why your bent valves got bent you are doing exactly the same thing so turn the crank back 15degrees position your cam and reset your crank,it seems to me you may be out of your depth lets hope not or it may be expensive

Posted on Apr 25, 2009

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junmag

Jun Magno

  • 175 Answers

SOURCE: cam timing with no colored links on chain!!

buy a new chain to make things easier

Posted on Jun 02, 2009

Cary

  • 114 Answers

SOURCE: 1997AudiA6Quatro2.8L-aligning cam and crankshaft for timing belt

You must find the cam lock bar and crank lock pin to do this job properly, otherwise you can bend some valves and that becomes expensive..the front crank damper has a mark to line up with a mark on the timing cover for #1 TDC, but the cam lock bar is what aligns the cams into position. The crank lock pin is helpful but not 100% necessary...

Posted on Sep 16, 2009

BCAS1298

Alexander Mimun

  • 3092 Answers

SOURCE: 94 nissan pathfinder. 3.0V6. timing belt change,

Hope this help's you.2632ba3.gif

Posted on Jun 28, 2010

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1 Answer

Hi trying to set the timing on my j1 elantra its a 16 valve and each cam has two marks on it.so my question is what positions should the cam lobes be at when timing is supposed to be correct.thanks


no 1 piston tdc
the cam lobes for no 1 piston should in such a position so that a slight turn of the cam shaft one way makes the exhaust start to close and the inlet start to open or the other way the inlet start to close and the exhaust start to open
this is known as valve rock or valve overlap and occurs when the cam shaft is properly timed to the tdc position of the piston
for a twin cam engine the cam lobes position will be the same operation just that the inlet cam rock will be for the inlet cam and the exhaust cam rock will be for the exhaust cam

Dec 29, 2016 | Cars & Trucks

1 Answer

I believe the timing marks no longer line up after replacing my timing belt. How can I determine if correction is needed? How do I correct timing mark alignment?


there is a method but you will have to have an understanding of valve timing
in an engine regardless of number of pistons when number 1 piston is TDC not firing, then the exhaust valve will be open and ready to close and the inlet valve will be closed and ready to open
so bring the piston up and near tdc
as you approach tdc you will see the exhaust start to close and at the same time the inlet valve will start to open
if you rock the crank back and forward slightly at tdc you will see that the valves are rocking
this is valve rock and indicates the cam is in time with the crank
it is only necessary to do it with no 1 piston
It doesn't matter how many cam shafts ( one cam shaft can be inlet valves only and the other can be exhaust valves only) there are, it is the exhaust and inlet valves for no 1 piston that you are looking at
how do you get tdc-- remove a plug and with a piece of wire place the end on the piston crown and as the piston comes up the wire will be pushed out as you rock the piston the wire will move in and out and the point before movement is tdc
probably as clear as mud unless you are engine savvy

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1 Answer

On 84 porsche 944 can the flywheel be spin around to ot without the camshaft spining since the camshaft is set to tdc.


crank shafts are set to tdc cam shafts are set for valve timing
if the crank shaft is turning but the cam shaft is not then the timing belt/chain has broken

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2 Answers

How to set camshaft timing


you should have bought a Chilton or Haynes manual. most cars and trucks are all different and have a set way to set them. if you broke the chain or belt and bent a valve. you will need to do expensive repairs pulling the heads to change valves. not sure what car you have or why you pulled the timing off. so I cant be sure what to tell you.

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1 Answer

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hmmm check cam and crank pulleys for stamped dot and use straight edge to line up and have # 1 cyl TDC and and both valves closed on #1.............

Mar 18, 2014 | 1952 Bentley R

1 Answer

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Make shore valve timing is correct compression test all cylinders same new spark plugs set ignition timing check ignition leads and vacuum hoses adjust tappets .make sure crank shaft on TDC cam shaft on number one cylinder valves close and cam pulley on marks belt tide fit distributor firing number one cylinder line up rotor and distributor cup lead to that .

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1 Answer

No just finished a valve replacement on 92 geo tracker 8v eng. set crank to TDC on #4 cyl and the cam to the proper alignment notch on rear valve cover and installed the new timing belt. However after all...


When timing belts are installed, the normal position of the crankshaft is for #1 cylinder to be at TDC. Here is a picture of the timing belt routing and the timing marks.

chuckster57_44.gif

Jun 04, 2011 | 1992 Geo Tracker

1 Answer

Timing points


On almost ALL Chevrolets Timing Marks are the Top Gear is your Cam Sproket,The DOT on the Casting goes straight Down at 6-a Clock, Then your Crank Shaft Sproket Goes Straight up at 12 A Clock. So the Dots are Meeting Each Other. This Will be TDC Top Dead Center.

d_hubbs

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1 Answer

Where can i find the timing mark for a 1996 bmw 316


Hi, to set the timing you should turn the No.1 piston to TDC, then turn the cam to where both valves on No.1 are close. The timing mark on the sproket should now be in line with the mark on the cilinder head. With No. 1 still on TDC fit the chain.
After fitting turn the engin a few times by hand to make sure there's not a valve pushing against a piston.

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1 Answer

I need to know where the timing marks are supposed to be on a 1986 Honda Accord 1955cc engine


looking at cam sproket front, it will be to the left hand side in line with the valve cover surface and crank shaft pointer on timing cover TDC should be white pointer no worries mate

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