LY 182
oh, for the cam cover yes - i thought we were on about the block and head!
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Removing and refitting F4R head + valves
- Thread starter Matteh
- Start date
oh, for the cam cover yes - i thought we were on about the block and head!
'92 172, Lotus Elise
I thought we were talking about the head/bottom end for W&D'ing - do i need to do both?
for the cam cover i was just going to clean up both surfaces and apply some instant gasket or similar
how do I go about removing the hydraulics?
do I need to do anything to piston 2? (marked)
for the cam cover i was just going to clean up both surfaces and apply some instant gasket or similar
how do I go about removing the hydraulics?
do I need to do anything to piston 2? (marked)
LY 182
yes, ALL mating surfaces need to be as good as possible - paying particular attention to block and head.
also need to be free from grease and oil.
hydrualics just sit in the holes in the head, just pull out with your fingers.
the rockers pivot on those and the valves.
once they are out they will each want a little nip in the vice (you will see oil come out as you do this) before you start they will be rock hard cant squeeze them.
after you have done them in the vice they should feel a bit spongey when squeezing them by hand
and no, nothing you can do (or need to do) to the piston
also need to be free from grease and oil.
hydrualics just sit in the holes in the head, just pull out with your fingers.
the rockers pivot on those and the valves.
once they are out they will each want a little nip in the vice (you will see oil come out as you do this) before you start they will be rock hard cant squeeze them.
after you have done them in the vice they should feel a bit spongey when squeezing them by hand
and no, nothing you can do (or need to do) to the piston
'92 172, Lotus Elise
ok brilliant! 
I've not tried actually removing the hydraulics, so sorry for the silly question
I've just had a read through the workshop manual and that answers most of my questions..
apart from having to use a roller to apply the gasket paste to the camcover!!
you've all been so patient with me cheers
I've not tried actually removing the hydraulics, so sorry for the silly question
I've just had a read through the workshop manual and that answers most of my questions..
apart from having to use a roller to apply the gasket paste to the camcover!!
you've all been so patient with me
cheers Bmh - I thought you were the man LOL!! only kiddin your a pretty clever b****d (most of the time )
easy mistake
PS I really hope you get it all sorted matteh! look on the bright side though even though youv had to f*** around doing all this to the engine at least your learning a s** load of stuff which will come in useful in the future!
)easy mistake
PS I really hope you get it all sorted matteh! look on the bright side though even though youv had to f*** around doing all this to the engine at least your learning a s** load of stuff which will come in useful in the future!
Oh btw just to be pedantic they're hydraulic tappets not hydraulics! You'd get a funny look if you needed to order some .
I'm on nights this week, it doesn't put me at my best.
.Bmh - I thought you were the man LOL!! only kiddin your a pretty clever b****d (most of the time
I'm on nights this week, it doesn't put me at my best
.
'92 172, Lotus Elise
M
mini-valver
Or Hydraulic lifters
Glad its coming on ok mate!
Glad its coming on ok mate!
'92 172, Lotus Elise
more noob questions
my inlet pulley can rotate a few degrees with respect to the camshaft - I assume this is normal and to do with the vvt (or is it broken)
only thing is, looking through the instructions on how to time it up, it doesnt seem to make any reference to this... i.e. I could fit it with it turned fully clockwise with respect to the camshaft or turned counter-clockwise. surely this will make a huge difference, but doesnt seem to be discussed in the manuals?! :S
my inlet pulley can rotate a few degrees with respect to the camshaft - I assume this is normal and to do with the vvt (or is it broken
)only thing is, looking through the instructions on how to time it up, it doesnt seem to make any reference to this... i.e. I could fit it with it turned fully clockwise with respect to the camshaft or turned counter-clockwise. surely this will make a huge difference, but doesnt seem to be discussed in the manuals?! :S
oh
crap
unless it wasn't done up properly before?
how does the 172 vvt work then?
works off oil pressure
'92 172, Lotus Elise
the crank is currently locked in TDC and I've got the timing tools being delivered... at some point.
I've removed the head already (so have the E14)
I've already replaced the broken valve and lapped the others so thats sorted too
so how does oil pressure change the timing?
I've removed the head already (so have the E14)
I've already replaced the broken valve and lapped the others so thats sorted too
so how does oil pressure change the timing?
'92 172, Lotus Elise
yeh, thanks ben
engine has been rebuilt now
I've done it by the book (hopefully) and have torqued everything up etc and generally took my time, so I hope it's ok!
my pulley and timing tools should arrive tomorrow... shouldnt take *too* long to time up the cambelt, should it? :S
engine has been rebuilt now
I've done it by the book (hopefully
) and have torqued everything up etc and generally took my time, so I hope it's ok!my pulley and timing tools should arrive tomorrow... shouldnt take *too* long to time up the cambelt, should it? :S
