Hey Folks, can anyone tell if there is a right or wrong way to reinstall a
timing belt?? It's a 1991 1.9, the timing belt lost a few teeth and
slipped, my question is....if I follow the directions and line up the
timing marks on the cam and crank shafts like the manual shows....how do I
know the cam isn't off by 180 degrees??
Is there anyway to check without having to try starting the car?? Or do the
plugs fire at both TDC's?? The electronic ignition has me confused as to
how it's set (no distributor) and I can't seem to find any other
information on it. Thanks
Be careful putting your finger in that hole. You may end up with a shorter
If memory serves me as long as the cam mark is in place you shouldn't have a
problem, however to be sure do the following. Place your index finger
against the hole of the #1 cylinder (closest to the passenger side) Turn the
engine over until you feel the piston coming up on the compression stroke.
This will feel like a big gush of pressure on your finger. The piston needs
to be at the top of the stroke. If you can get it close to the top then you
will be able to finish the process by looking at the crankshaft marker and
aiming it straight up. This will be top dead center. (one other way is to
remove the valve cover and turn cam until both valves on the #1 cylinder are
closed then bring piston to top of cylinder). The camshaft pulley has a
small arrow mark that also gets placed straight up. There should be a small
mark on the head to line it up with. When installing the new belt, be sure
to remove all slack from the right side (front of car). Then release the
spring tensioner and retighten. At this point you want to turn the engine
over three revolutions to be sure the timing is correct. After turning over
check to be sure the marks are still correct.
Hope this helps,
I just finished my timing belt change, What I did in my 95 Ford Escort
LX 1.9L Engine is that I installed a remote start switch ($14 from
auto zone) and let it crank the crankshaft and let it come to a stop
when the crankshaft sproket arrow mark aligned with the oil pump cover
mark, then turn the camshaft sproket using a wrentch and socket to
Iam not a pro. But I think there is no way you can go wrong here. when
u allow the crankshaft to rotate using a remote start, its that the
sproket mark will come to a stop only on the correct position. If u
use a ratchet and socket on the damper bolt, it might be different.
Else I was extremely lucky at that time when I did. I asked the same
question concerned about the 180 degrees. Since I didnt get clear, I
decided to take a chance (what else I will loose a $700 car?) and it
worked well for me. Experts please correct me I am wrong here.
I tried rotating the crankshaft manualy using the ratchet and socket
but coulnt be able to plug the sp#1 hole while doing that. So I
installed the remote start switch after removing all the sp plugs and
wires from distributor and the batterly hooked up. Connected the
remote start at the stater solonoids big wire and small wire. It all
worked up well for me.
By the way u didnt mention what car is yours. Lukily mine was an
non-interfering engine so no damage to the cam heads.
Hope this helps.
A lot of good points there Sam, I'm hoping the belt only slipped a couple
of teeth but knowing how to check which stroke the plug fired on was
bothering me, now if I can get the number one plug out....god they seem to
be stuck tight as can be, I was afraid if I pressed too hard I'd break
them, same thing happened with my truck, I've been told it's something to
do with the alum. heads....btw, the cars a 91 Mercury Tracer that I've only
had for about a month....thanks for the infor....
Oooops, after thinking about checking the timing the way you folks are
saying....I remembered that wont show me the firing stroke, how can I tell
when the electronic ignition is ready to spark the number one plug?? The
manual says it has no moving parts, is there anyway I can test which plug
it's going to fire??
The vehicle has an electronic cam sensor. It is just like a distributor
without the top portion. It's driven from the camshaft. If you set the
camshaft sprocket the way we stated the cam sensor will automatically be set
and will fire on compression stroke. As long as you get the timing marks
set properly you won't have a problem.
Thanks very much John for the help, car started without a problem and
maybe even sounds a little better then before....at first it had me a little
worried but I remembered it was sitting for the last two weeks and needed a
few minutes to warm up, after that....just great....
Thanks to any and all who gave me advice, and no, I didn't use the
number one cylinder to "clip" my fingernails....laughing....Mikal
For anyone interested or who has friends who collect Wee Folk
drawing....visit www.shagshoppe.com/mikals-hart.htm and take copies of
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