Quick guide, timing bottom end and head

[Guest]

Hi guys,

Can someone just explain quickly an easy way to make sure the bottom end and head are in time after you've seperated them to change a headgasket?

The gearbox isn't bolted on and the cambelt is off.

Just need a way to make 100% sure it's all in time.

Cheers

 

[Guest]

you can tell when the cams are inline due to the markers on the pulleys

for the BE, there is a mark on the flywheel and a mark on the crank pulley

if they're apart, turn the crank over until you see pistons 1 and 4 at TDC. you can then lock the crack with a pin through the front of the block.

put head back on bottom end

????

PROFIT!!

 

[Guest]

That's the plan.

I know how to time the cams that's not a problem, it's just the bottom end.

How do you know when the pistons are at TDC? n00b alert lol

 

[Guest]

piston 1 and 4 are at the very top of the block and as matt said only when they are in this position can you insert a pin through a hole in the front of the block near the flywheel which locks them in that position. also the mark on the crank pully should be at nearly 6 o clock position (varies depending on how your engine is leaning)

 

[Guest]

Engine should be like this with pistons 1 and 4 at the top of their travel (TDC)

 

[Guest]

for an F4R, but it's about the same:

 

[Guest]

should be a mark on the fly wheel and a mark on the block youve got about 5mm play to get it right line them up and it will be fine

 

[Guest]

Ok cool.

Looks like i need to get a female torx socket to get the thing undone covering the hole i need to insert a pin into then.

Should i just use a random screwdriver or something? Any idea on the size of the torx bit i need to undo the thing (don't know what you'd call it lol)

 

[Guest]

personaly i wouldnt use one as its unlikeely to move mate ones the heads on and belt etc then check it agian before u do it all up

 

[Guest]

Mine was a 15/16mm bolt i think?
So in simple terms you set the timing marks on the head/cams, and set the b/e locked to 1 & 4 at TDC then fit them together?? Im at this exact stage too and dont want to mess it up.

 

[Guest]

E14 is what you need

asfb, that's basically it, nothing complicated

I'm not sure on the exact size of the pin you need (I use a proper locking pin), but I think it's about 8mm...

 

[Guest]

bish

bash

bosh


easy peasy lemon squeezy

 

[Guest]

^lol

Show off

Well i think my bottom end is at TDC anyway so it should be ok, but i might try the locking pin method just to be sure. Mine is some kinda female torx bolt thing on mine not a normal bolt.

Someone mentioned there's a timing mark on the flywheel, i know you can see it through a hole in the gearbox. With the gearbox off, is there anything to line it up with?

 

[Guest]

not afaik - but if the head is off, you can easily align it at TDC

the female torx thing is an 'E14'

 

[Guest]

on the 19 engine ive got theres an indent on the fly and an indent on the block but as said this will be covered by the gearbox

 

[Guest]

just use an alan key through the hole to lock it mate, choose one with tightest fit

 

[Guest]

6m allen works well

 

[Guest]

just use an alan key through the hole to lock it mate, choose one with tightest fit

worked a treat on mine :wink: