06 tdi brm
- Thread starter fluxcore
- Start date
ss_mini14
Well-known member
Looks like the timing mark is on the timing belt pulley behind the crank pulley. You can pull the valve cover and see when the #1 injector is on its cam lobe though
Nevada_TDI
Top Post Dawg
Manual or auto trans? If manual look on flywheel for notch.
Franko6
Vendor , w/Business number
BRM engine has tooling to lock the crank. You would have to remove the harmonic balancer to use the tool. For rough estimate where the crank is, there is a button on the crank sprocket that can be seen through the harmonic balancer. When that button is about 8 o'clock position, you are near enough to TDC.
Truthfully, what difference does it make? If you are removing the head, take it off! It will become very obvious where the pistons are at that time...
There is a tool set we loan that you need to retime the engine. With the right tools, properly inserted, it's hard to get it wrong.
Here is the bigger question. Why are you removing the head?
Otherwise, on the PD motor, there is no timing mark to be seen on the flywheel. It's there, but it's straight down and covered by the bell housing. It does not matter if it's auto or manual.
Truthfully, what difference does it make? If you are removing the head, take it off! It will become very obvious where the pistons are at that time...
There is a tool set we loan that you need to retime the engine. With the right tools, properly inserted, it's hard to get it wrong.
Here is the bigger question. Why are you removing the head?
Otherwise, on the PD motor, there is no timing mark to be seen on the flywheel. It's there, but it's straight down and covered by the bell housing. It does not matter if it's auto or manual.
JETaah
Vendor , w/Business number
#1 and #4 are at TDC together.
When #1 piston is at TDC of the compression stroke, #4 is at TDC ready for the intake stroke.
hitting valves!
How do you know is #1 is @ compression stroke, if I knew this i wouldn't have a problem.
I have an inserted it and pin the head installed the belt and hid valves @about 12:30 and 8 o'clock. on older VW TDI on back of the engine on the bell housing on top there was o 1" hole to view flywheel and there was a mark on there for a TDI, is it still there. Please.
I installed pin on head & on crank I installed the crank lock, there a hole about 12, o'clock where it installed and fit in with ger below, installed belt, removed pin & lock, Tried to turn CW hit valve @ 12:30 then went CCW to about 8: o'clock and hit valve again. PLEASE explain.
JETaah
Vendor , w/Business number
The position of the camshaft determines this.
Compression cycle will have the #1 cylinder cam lobes at about 10 o'clock and 2 o'clock.
Are you sure you have a crank lock for a BRM and not a BEW engine? That would throw things out. Not even sure if would fit but, maybe.
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Thus is with the head off Please.
BobnOH
not-a-mechanic
And with the head off, you'll see the #1 piston at the top for any needed indexing.
oilhammer
Certified Volkswagen Nut & Vendor
To clarify: the "bottom" half of the engine (crankshaft, pistons) only has UP or DOWN positions, so only two parts of the four stroke engine equation. The camshaft works to provide the squaring of the strokes.
The BRM is a textbook inline 4 cylinder 4 stroke engine. Works exactly the same as 99% of everything else on the road with an inline 4.
Franko6
Vendor , w/Business number
The big question has not been answered. One thing I would never do is remove a cylinder head, assuming valves are bent without first determining if the CAM FOLLOWERS are damaged.
The weak link in the chain of valves is the top of the cam follower (lifter). Any strike hard enough to bend a valve will first damage the lifter. So, a dent downward on a lifter is from an engine speed hit. A lifter bulged up is always from a starter speed hit.
A fractured lifter, we call an 'incidental' hit. The lifter appears flat, but has a circular fracture with radiating fracture lines going out from the center. This damage can be missed on initial inspection, as the fracture will be faint lines at times. This type of damage, if not addressed, causes the top of the lifter to fall off like a trash can lid, slide backward on the head and DESTROY your cam, cam bore, valve, and sometimes a piston and rod.
So, why are we talking about timing of an engine when the real question is do you have a valve bent or a lifter ruined?
Very simply, if you remove the cam and all the valves are not being pushed downward, and the crank can still not be turned over, you have a bent valve.
Stop worrying about an engine's piston location. What difference does that make? If you remove the head, you can time it when it goes back together.
The weak link in the chain of valves is the top of the cam follower (lifter). Any strike hard enough to bend a valve will first damage the lifter. So, a dent downward on a lifter is from an engine speed hit. A lifter bulged up is always from a starter speed hit.
A fractured lifter, we call an 'incidental' hit. The lifter appears flat, but has a circular fracture with radiating fracture lines going out from the center. This damage can be missed on initial inspection, as the fracture will be faint lines at times. This type of damage, if not addressed, causes the top of the lifter to fall off like a trash can lid, slide backward on the head and DESTROY your cam, cam bore, valve, and sometimes a piston and rod.
So, why are we talking about timing of an engine when the real question is do you have a valve bent or a lifter ruined?
Very simply, if you remove the cam and all the valves are not being pushed downward, and the crank can still not be turned over, you have a bent valve.
Stop worrying about an engine's piston location. What difference does that make? If you remove the head, you can time it when it goes back together.