18 replies to this topic

[Edington]

Anyone know when they stopped fitting the saw tooth timing  marker onto the timing cover? I'm trying to set up the timing advance accurately with a strobe and my timing cover doesn't have one. 

[nicklouse]

I think the question should be when did they add them. Which I think is A+. Oh the good old days of using a strobe on the flywheel markings.

[Spider]

Did they stop fitting them on the MPI ???

I gotta say, all the A+ covers I've picked up have had them, but the early covers never had them.

[floormanager]

Interesting discussion.  I recently had my recently rebuilt engine on a rolling road.  The first thing the dyno man moaned about was a lack of timing marks on the timing cover.  It's an S engine so it never had them on the timing cover.  I said to the Dyno man that I'd left the brake servo out to help access to the timing marks but he said every engine he builds he puts them on.  Takes about 10 minutes he said.  I've been wondering ever since how you'd do this?

Paul

[nicklouse]

Did they stop fitting them on the MPI ???

I gotta say, all the A+ covers I've picked up have had them, but the early covers never had them.

I had to add a pointer on my A cover.

[nicklouse]

Interesting discussion.  I recently had my recently rebuilt engine on a rolling road.  The first thing the dyno man moaned about was a lack of timing marks on the timing cover.  It's an S engine so it never had them on the timing cover.  I said to the Dyno man that I'd left the brake servo out to help access to the timing marks but he said every engine he builds he puts them on.  Takes about 10 minutes he said.  I've been wondering ever since how you'd do this?

Paul

Put mark on the damper. By marking a know point either side of TDC then dividing the distance. Then add a pointer to suit.

[Spider]

Interesting discussion.  I recently had my recently rebuilt engine on a rolling road.  The first thing the dyno man moaned about was a lack of timing marks on the timing cover.  It's an S engine so it never had them on the timing cover.  I said to the Dyno man that I'd left the brake servo out to help access to the timing marks but he said every engine he builds he puts them on.  Takes about 10 minutes he said.  I've been wondering ever since how you'd do this?

Paul

 

If there's no pointer to start with, I think it'd take a bit more than 10 minutes. First you'll want to fabricate a Pointer, then braze it to the cover in just the right spot, where it's somewhat easy to see. Then fit it up to your engine while building it, before the head goes on, with a DTI and an Degree Wheel, using the averaging method, find TDC, then mark your Pulley. That should be all you should need, though, some guys like to mark the pulley from around 40 degrees BTD to about 10 degrees ATD. There's a few ways to do this, when I have done it I've set up the Pulley in a Dividing Head on the Mill, then used a pointed cutter to put all the marks in, finally stamping the numbers every 10 deg.

[floormanager]

 

Interesting discussion.  I recently had my recently rebuilt engine on a rolling road.  The first thing the dyno man moaned about was a lack of timing marks on the timing cover.  It's an S engine so it never had them on the timing cover.  I said to the Dyno man that I'd left the brake servo out to help access to the timing marks but he said every engine he builds he puts them on.  Takes about 10 minutes he said.  I've been wondering ever since how you'd do this?

Paul

 

If there's no pointer to start with, I think it'd take a bit more than 10 minutes. First you'll want to fabricate a Pointer, then braze it to the cover in just the right spot, where it's somewhat easy to see. Then fit it up to your engine while building it, before the head goes on, with a DTI and an Degree Wheel, using the averaging method, find TDC, then mark your Pulley. That should be all you should need, though, some guys like to mark the pulley from around 40 degrees BTD to about 10 degrees ATD. There's a few ways to do this, when I have done it I've set up the Pulley in a Dividing Head on the Mill, then used a pointed cutter to put all the marks in, finally stamping the numbers every 10 deg.

 

Well, that's what I thought Spider.  It can be done but is not straightforward or easy for an amateur like me with only hammers, sockets and spanners in the tool box.

Thought he was a bit off to start with. He got more friendly throughout the session.  Guess first thing on a Friday morning it was the first annoyance he encountered.  Did a great job by the end though!

Paul

[johnv]

I just put a dab of paint on the pulley and timing cover at tdc..

[OzOAP]

[imack]

Beautifully simple and neat.

[floormanager]

Interesting and good for TDC but what about other marks?

[nicklouse]

Interesting and good for TDC but what about other marks?

You don’t need any more. Adjustable timing light. 

[floormanager]

Interesting and good for TDC but what about other marks?

You don’t need any more. Adjustable timing light.

[floormanager]

Ah ha. More research me thinks. Thank you.