Drivetrain Finding Tdc? / Identify Stock Cam

5point0stang88 · Sep 5, 2013

The cam I took out, was supposedly advanced as the crank gear was on the key way at the advanced mark.
So of course when I installed my Tfs1 cam, it's in advanced mark.
(I do not have a degree wheel nor do I know how to use one, I'm terrible at math)
I also didn't have a balancer pointer, but have a new one coming in the mail tomorrow so I can see what mark it lines up with.

I also will be getting a piston stop since the heads are on to get it close to tdc.
Being able to rotate the engine over, I shouldn't be having ptv issue? Since I have 1.72 rr installed, I would however like to put the cam at dot to dot position.
When cam dot and crank key way lined up, cyl 1 both lifters on base lobe (comp stroke?) So this should be tdc right?

Also can some one show me a stock cam and can verify this is indeed stock by its markings?

Sent from my SPH-L720 using Tapatalk 4

84Ttop · Sep 6, 2013

A few things:

First, I would ditch the gear driven timing set and grab a standard double roller timing chain setup.
Second, just because you can rotate the motor over does not mean that you will not have a ptv problem, only way to verify the clearances is to check them
Third, I would not advance the cam timing with the gear set. IMHO this needs to go in straight up
Fourth, While dot to dot is technically TDC, the most accurate way to find TDC is with a piston stop

5point0stang88 · Sep 6, 2013

84Ttop said:
A few things:

First, I would ditch the gear driven timing set and grab a standard double roller timing chain setup.
Second, just because you can rotate the motor over does not mean that you will not have a ptv problem, only way to verify the clearances is to check them
Third, I would not advance the cam timing with the gear set. IMHO this needs to go in straight up
Fourth, While dot to dot is technically TDC, the most accurate way to find TDC is with a piston stop

I have new the Comp Cams Magnum double chain roller and was thinking about using it.

Sent from my SPH-L720 using Tapatalk 4

5point0stang88 · Sep 6, 2013

Sent from my SPH-L720 using Tapatalk 4

mikestang63 · Sep 6, 2013

X2 in ditching the gear drive- noisy as hell and robs HP. You should really degree the cam, but if you can't then install it straight up dot to dot. Make sure you put loctite on the necessary bolts- cam thrust bearing.,

elarm1 · Sep 6, 2013

looks purty!

5point0stang88 · Sep 6, 2013

Thanks!
Also I regret to report that the torque wrench I had before, failed me and snapped the head of one of the cam thrust bearing bolts so I just have one.

Sent from my SPH-L720 using Tapatalk 4

5point0stang88 · Sep 6, 2013

Sent from my SPH-L720 using Tapatalk 4

mikestang63 · Sep 6, 2013

5point0stang88 said:
Sent from my SPH-L720 using Tapatalk 4

I highly recommend covering up your exposed engine before all kinds of unwanted material find its way into your motor. For the lifter valley, a cut op piece of cardboard or large rag works. Replace the valve covers so nothing falls down a hole. Tape over the intake openings in the heads with painting/masking tape.

You get the idea... anything open needs to be covered.

5point0stang88 · Sep 6, 2013

Thanks I do use a big towel just for that when I'm not working in there

Sent from my SPH-L720 using Tapatalk 4

mikestang63 · Sep 6, 2013

If it were ME, I'd still have the intake ports covered at least even when you are working, until you are ready to drop the intake on the heads. All it takes is one piece of something to fall in there and you are pulling a head. Make sure you use a shop vac in the lifter valley and around the intake ports before you button it up.

Also... your pan is wide open...

5point0stang88 · Sep 6, 2013

mikestang63 said:
If it were ME, I'd still have the intake ports covered at least even when you are working, until you are ready to drop the intake on the heads. All it takes is one piece of something to fall in there and you are pulling a head. Make sure you use a shop vac in the lifter valley and around the intake ports before you button it up.

Also... your pan is wide open...

True I didn't think about all the ports and having to remove the head, big thanks, I used prior compressed air and towel to get all the debris out. I will be changing the oil of course before I start it. This was a heads cam intake swap and other goodies.

Parts list
Crane Cams 1.72 roller rockers
Gt40p heads
Tfs1 cam
Hardened stock length pushrods
Crane beehive springs
Gt40 intake
Mac long tubes
Mac Prochamber
Spintech Super Pro Streets dumped
Energy suspension tranny and engine mounts
ARP block to mount bolts
Comp cam double chain roller and sprocket
ARP head bolt and stud
Ford racing gasket kit
90 degree spark cable kit

Already have installed are
Underdrive pulley kit
Bypass smog
Electric fan
Hotchkis CC plates
BBK Powerplus 70 mm throttle body
70 mm MAF conversion
130 amp alternator
Dual friction clutch
Rebuilt t5
Weld in sub frame connectors

Sent from my SPH-L720 using Tapatalk 4

Rick 91GT · Sep 7, 2013

Masking tape does wonders covering up the ports. You'll need to drill and extract the broken can thrust bolt you have to have that bolted in place properly

Sent from my XT907 using Tapatalk 2

Gearbanger 101 · Sep 7, 2013

Hardened pushrods aren't necessary for pedestal mounted rockers. If they're in good shape the stock pushrods will be fine. Nor are beehive springs for a TFS1 with 1.7RR. Just pick up one of Alex's spring kits and save your money.

http://www.alexsparts.com/sb-ford-gt40p-e7-drop-in-valve-spring-kit-hyd-roller/

5point0stang88 · Sep 7, 2013

Rick 91GT said:
Masking tape does wonders covering up the ports. You'll need to drill and extract the broken can thrust bolt you have to have that bolted in place properly

Sent from my XT907 using Tapatalk 2

I was hoping not to do that, that I could get by. I do have an extraction kit, just need to borrow a drill since I took mine back

And thanks for the link, the stock length Ford racing ones, done are just a tiny bit short and I can't get the lash out. So I will get the longer ones and shim from that site

Sent from my SPH-L720 using Tapatalk 4

JD1964 · Sep 8, 2013

Many camshafts have advance already built into the profile of the grind. Check the specific cam profiles and include them in the decision of where you put the key.

jAEded · Sep 8, 2013

I know the stock cam you're dot-to-dot when the key-way on the crank is at 12 o'clock, and the dowel pin on the camshaft is at 6 o'clock.

jAEded · Sep 8, 2013

You should get this timing set. http://www.summitracing.com/parts/fms-m-6268-f302

5point0stang88 · Sep 8, 2013

Yes that's why I didn't really want to install it in advanced position, so I did put it in that dot to dot position. It already has advanced 4 degrees
And holy wow lol I only have a mild 302 lol if I spent any money like that I better get a belt drive hehe

Sent from my SPH-L720 using Tapatalk 4

jAEded · Sep 8, 2013

Lol.

I messed up my stock heads pretty good doing that chain. It doesn't have any dots on it or come with instructions. I guess they figure if you're gonna spend that much on a timing chain you know what you're doing?.... I still had my rockers on so there was spring pressure on the cam and it must have rotated once I took the old sprocket off.... It was pretty bad once I started it.

Drivetrain Finding Tdc? / Identify Stock Cam

5point0stang88

Active Member

84Ttop

They make new pistons every day, so why worry?

5point0stang88

Active Member

5point0stang88

Active Member

mikestang63

elarm1

5point0stang88

Active Member

5point0stang88

Active Member

mikestang63

5point0stang88

Active Member

mikestang63

5point0stang88

Active Member

Rick 91GT

Mustang Master

Gearbanger 101

Straight Outta Locash

5point0stang88

Active Member

JD1964

there is enough sticking out to grab on to

jAEded

Active Member

jAEded

Active Member

5point0stang88

Active Member

jAEded

Active Member

Similar threads

Drivetrain Finding Tdc? / Identify Stock Cam

Active Member

They make new pistons every day, so why worry?

Active Member

Active Member

Active Member

Active Member

Active Member

Active Member

Mustang Master

Straight Outta Locash

Active Member

there is enough sticking out to grab on to

Active Member

Active Member

Active Member

Active Member

Similar threads

Privacy & Transparency

Privacy & Transparency