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Juan Ramón Soto Gtz.
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I have 86 ford truck f 150, 4.9 liter l need to know how to

Pregunta del cliente

I have 86 ford truck f 150, 4.9 liter l need to know how to set tdc and distributor cyl 1
Enviada: hace 5 años.
Categoría: Coche
Experto:  Juan Ramón Soto Gtz. escribió hace 5 años.

god afternoon

iam sorry i have some problem with internet,faill my red, but wi need to check first the marck of the distribuitior.TDC is when the piston is at top dead center of the compression stroke. The easiest way to set it at TDC is to remove spark plug number one and insert a slim item such as a pencil or screwdriver into the spark plug hole and turn the crankshaft clockwise with a ratchet or breaker bar as you watch when the piston starts coming up. Remove the pencil or screwdriver and inseret your finger tip into the plug hole to feel for pressure (compression) building up. When you feel compression building up, remove your finger and re-insert the pencil or screwdriver to see when it reaches the top; the piston will be at TDC and the timing marks should be aligned. NOTE: The crankshaft rotates twice, chec must be a mark.

next.if you can check this too,Take out plugs and earth coil lead, place a finger over No1 plug, crank engine
in clicks only until you feel compression build up, then turn engine by hand
until you see the timing mark reach TDC, this will be good enough to set the
distributor for a start then do a timing check.then you got it 10degrees btdc and have the rotor set to spark plug no. 1 but if dont have enough battery to crank it now, try to do with some tools and move it the motor to put the distribuitor with th first ones. y try to helpyou till to the end if you want ok

thanks a lot of you

see you again

Cliente: escribió hace 5 años.
i am trying to put the cyl no 1 to tdc but the marks dont match even when i turn the crankshaft several times the piston stay on the bottom when the marks are aligned.
Experto:  Juan Ramón Soto Gtz. escribió hace 5 años.

ok chek good there is a mark beewen the The #1 cylinder is the first on the left (passanger side).

So passanger side from front to back: 1 ,
2 , 3 , 4

Driver side from front to
back: 5 , 6 , 7 , 8

Match those to the dizzy firing order given in an earlier response.

but. do this again Here's how we've always done it. Pull the valve cover so you can watch the valves, place your finger over the spark plug hole. Rotate the engine until it
stops hissing around your finger AND The valves are both closed. That will be
TDC on the compression stroke. That's where you want it, otherwise you'll be be
180 degrees out. i try to send you some picture.

see you here ok

Cliente: escribió hace 5 años.
i am sorry i probably did not mention that this truck has 6 cyl in line,
Experto:  Juan Ramón Soto Gtz. escribió hace 5 años.
ok. Could be
you're looking at the wrong timing mark.

The back of the damper has a notch in it which is not the
timing mark.
The timing mark is a scribed mark that can be
very hard to see.

Some people use
sand paper on the damper to get the rust
off of it which
makes it easier to find the timing mark. Once you find the
mark use white paint on it so it can easily be seen.

The first picture shows the mark.
The second picture shows the notch.

The third picture shows the notch and the scribed mark.
Looking from the back side of the damper, the scribed mark is
7 1/4 inches in the ccw direction from the notch.

The timing numbers are on a saw tooth
shaped piece of metal that bolts
to the timing cover and is
on the passenger side of the timing cover.

The timing cover also has timing marks engraved in the timing
on the driver side. These timing marks are not used
for a fuel injected engine.

fourth picture shows the timing numbers on the sawtooth shaped
piece of metal

Click this
bar to view the full image.

Click this
bar to view the full image.

Click this
bar to view the full image.

chek this page is in spanish. but here comes pictures about this

chek it i working here to find a solution

see later

Experto:  Juan Ramón Soto Gtz. escribió hace 5 años.

All 4.9 engines have a 153624 firing order. The only difference is the wire location on the caps when they changed to EFI. The 5.0 and the 5.0 H.O. have different firing orders.

chek this too

you have a hold down screw at the 10 o'clock and the 4 o'clock position. Your
rotor turns clockwise. Number one cylinder is at 3 o'clock, just before the hold
down screw at 4 o'clock. Then continue clockwise with 5, 3, 6, 2 & 4.

next......number 1 should be marked on the cap, it has been on everyone of them that i've replaced. if its not on the new cap. it should be on the old one if its the original cap. even the new cap should be marked with a 1 were number 1 spark plug wire should go. have you moved the distributor? or unpluged the tfi, maybe bumped the wires enough to unplug them?

other willbe,see thouse.

It is 1-5-3-6-2-4.
( also , the distributor rotor turns CLOCKWISE , the distributor cap is installed with the marked # XXXXX position facing AWAY from the engine , and the engine cylinders / spark plugs are numbered 1 through 6 , from front to rear )

i hppe i could help you and over all can understand you and here stay i you have a some problems

i hoppeto you see you again