M42 cam timing

Post Sun Feb 22, 2015 6:05 pm

On the cam sprockets where should I put the bolts.
Because there's an adjustable part about 5MM on each side of the bolt if it's in the middle .
I put it in the middle of the sprockets and seems to have abit of a slight delay on the throttle.
Would this be the problem ?

Post Sun Feb 22, 2015 6:47 pm

Loosen the bolts again. Lock both cams in place or at least set them to be exactly right. Set TDC by locking the crank though the hole with an 8 or 9mm drill. Then retighten the bolts.

Post Sun Feb 22, 2015 6:51 pm

Ok .
So inlet valve open exhaust valve shut.
Should I set the inlet to just as it's about to lift the valve or during.as in the valve lifted high as I can.
Where do I lock the crank?

Post Sun Feb 22, 2015 7:35 pm

No, set the cams with the proper locking tool. Lock the crank via the hole in the back of the block.

Post Mon Feb 23, 2015 12:09 am

Find me a cheap one for an M42 please while I look.

Post Mon Feb 23, 2015 12:06 pm

35.99 for Something I'll use for 2 mins

Post Mon Feb 23, 2015 1:37 pm

You could sell it on for slightly less once the 2 min is up
Or make one....

Post Mon Feb 23, 2015 1:40 pm

Simple straight edge will do the job.

Post Tue Feb 24, 2015 9:44 am

So how do I trap the timing at TDC.

Post Tue Feb 24, 2015 10:39 am

Straight edge across the flats on the cams.

Post Tue Feb 24, 2015 10:41 am

I believe there is a procedure involving the alarm remote. The alarm obviously needs to work......

Post Tue Feb 24, 2015 2:47 pm

Alarms off it's all started previously.
And they say there good alarm my arse

Post Tue Feb 24, 2015 6:11 pm

So today I got all confused my cams are like this
Well was today I just made sure cylinder 1 was at TDC
Then tried to set the cams.
Funny thing was it was from a picture which never helps
(The previous owner gave me for some reason..)

Then I read here that there's something of a TDC under the starter?
So I tried to find it and this was me confused

So now I'm stuck and confused.
So can someone help me do this thing
Where's the TDC 'hole' Iv read about
And as you say a straight edge yes will a plastic one do.
Straight across the top yes.
Im planning on doing this tomorrow
Also what way the cam marks gotta face? Each other?

Post Tue Feb 24, 2015 6:37 pm

There are two strengthening webs on the block, underneath the starter motor, close to the join to the sump and to the join to the gearbox. Between these webs there should be a plastic plug blocking the hole you are looking for to fit the crank locking pin.
Steel rule would be the ideal straight edge, but anything straight will do. Lie it across the tops of the square sections on the cams.

Post Tue Feb 24, 2015 6:42 pm

So cams facing up or down

Post Tue Feb 24, 2015 6:45 pm

BROOMY wrote:So cams facing up or down

Dw about that comment.
It's ran the other day do Ino they're in the right direction .

Post Tue Feb 24, 2015 9:17 pm

So should my cams look like this

Post Wed Feb 25, 2015 11:45 am

Is there any other way the TDC is marked.
Because that plugs welded in there.

Post Wed Feb 25, 2015 3:19 pm

Done.sprayed some wd40 on it n slipped straight out.
I rushed home from work In my lunch for a 20 min procedure then back I went
Thanks everyone.
The timing was pretty much spot on.
Didn't get a picture in mid work so here's 1 after

Post Sat Feb 28, 2015 4:44 pm

4.5L of oil right

Post Sat Feb 28, 2015 5:22 pm

That all looks fine.

Post Sat Feb 28, 2015 5:45 pm

Nice One!

Post Mon Mar 02, 2015 2:01 pm

Anyone know how to clean the rocker cover/inlet manifold?
Usually I would take it to the steam cleaners but this cars immobile.