waterpump/cambelt etc replacement howto?

[sandmonster]

Is there a comprehensive howto for this on here - have had a little search but not come across it?

I'm gearing up to replace my thermostat housing (leaky t-piece) and will check/replace everything else that I can while I'm 'in there'. Could do with a comprehensive list of jobs/bits and any hints/tips that aren't likely to be in the Haynes book.

Also recommendations on the bits - I note MX5parts do a 'ultimate' kit http://www.mx5parts.co.uk/camshaft-timi ... -3328.html but it has a pattern waterpump?

Also my 1992 Eunos wont be 'early crank' in the options for that kit will it - how do I tell?

in advance.

[Mxmurray]

The Short nose Crank has 4 "slots" in the pulley whereas the long nose crankshaft has 8 "slots".
I think there is only about a £20 difference in water pumps between aftermarket and genuine so that's a choice for you.
I bought the kit from mx5 parts but asked for a genuine cam cover gasket as the pattern ones are not the same quality.

[Mazda Mender]

I'll answer this later
M-m

[sandmonster]

This looks like a place to start - seems to skip some bits, but fairly comprehensive... https://www.youtube.com/watch?v=YwaHeAPd14A

This one does the seals too: https://www.youtube.com/watch?v=gtZEUnnZYyI

Another one with some more bits: https://www.youtube.com/watch?v=2hLuUi32UgY

And this one lots of good tips - love the guy's hat - I think Wayne should have a similar one ;) - https://www.youtube.com/watch?v=oovptq0q7vc

[Mazda Mender]

When are you thinking of doing it as i will be doing a pump and belt next weekend which i will be using for a pump and belt how to, re-photo's and write up, speedy is doing one at the minute with a SNC to, if you can hang on we will be doing some, but as for your parts use Autolinkmx5 and our discout code.
M-m

[sandmonster]

Hi Wayne,

Not doing it for a few weeks - need some dry-ish weather forecast LOL

Just doing some background research and building up a list of stuff to order.

So far I have:

1. Timing belt kit (Belt, tensioner, idler & spring)
2. Water pump with gaskets
3. Thermostat housing (got 2nd hand one - pipe is a little rusty, but do I buy new, or do the brass t-piece mod?)
4. Thermostat housing gasket
5. Thermostat with gasket
6. Rocker cover gasket
7. Antifreeze
8. maybe cam seals
9. maybe crank seal
10. maybe hoses?
11. CAS o-ring
12. alternator belt - just changed
13. power steering belt - just changed

[Mazda Mender]

CAS O'ring, aux belts, check your rear hoses and the rest looking at the engine bay.
M-m

[sandmonster]

+ waterpump inlet pipe o-ring

+ any special tools (crank lock tool?)

[Mazda Mender]

Remind me ? SNC or LNC?
M-m

[sandmonster]

its the long nose (later?) 8 slot one

[Mazda Mender]

So you can re-use the crank bolt, two 1" open spanners and a locking tool, and if needed torque wrench's.
M-m

[sandmonster]

Sketching out the removal sequence while on dinner at work because its raining too much to go for a walk...

Disconnect battery
Drain coolant
Remove under tray (if fitted)
Remove air duct
Disconnect hoses from thermostat housing
Remove rad for more room?
Remove aux belts
Remove water pump pulley (3 bolts)
Remove crankshaft damper/pulley (4 bolts)
Remove cyl head cover…
-Remove PVC hose
-Remove breather hose
-Remove ign coils (3 bolts) & HT leads
-Remove cyl head cover bolts (observe sequence)

Remove timing belt upper cover (4 bolts)
Remove timing belt middle cover (1 bolt)
Remove timing belt lower cover (3 bolts)
Align timing marks TDC on #1 cyl – lock camshafts - lock crankshaft sprocket
Undo crank sprocket bolt (Haynes says to release clamps & lower anti-roll bar to improve access).
Loosen tensioner bolt, lever tensioner outward, retighten bolt (protect thermostat housing before).
Remove belt
Remove water pump…
-Undo coolant inlet bolts (2off)
-Undo pump mounting bolts (4 off)

Remove thermostat housing (2 bolts)

[Mazda Mender]

Sketching out the removal sequence while on dinner at work because its raining too much to go for a walk...

Disconnect battery..............just earth
Drain coolant....refresh with new
Remove under tray (if fitted)................Rubbish...no need
Remove air duct....and air box
Disconnect hoses from thermostat housing
Remove rad for more room?...............Rubbish....no need
Remove aux belts....and replace with new
Remove water pump pulley (3 bolts)..........Crack these bolts before you remove the AUX belts as T*t will keep it under tension to be undone, reverse when building back up.
Remove crankshaft damper/pulley (4 bolts).......same as above
Remove cyl head cover…
-Remove PVC hose
-Remove breather hose
-Remove ign coils (3 bolts) & HT leads
-Remove cyl head cover bolts (observe sequence)
............Remove air box and all trunking, unbolt PS pump and tie out of the way, clean the CAS body and bracket and mark it to replace the O'ring,,,,
Remove timing belt upper cover (4 bolts)
Remove timing belt middle cover (1 bolt)
Remove timing belt lower cover (3 bolts)...........Remove this once the crank pulley is out of the way
Align timing marks TDC on #1 cyl – lock camshafts - lock crankshaft sprocket
Undo crank sprocket bolt (Haynes says to release clamps & lower anti-roll bar to improve access).............rubbish
Loosen tensioner bolt, lever tensioner outward, retighten bolt (protect thermostat housing before).
Remove belt
Remove water pump…
-Undo coolant inlet bolts (2off)
-Undo pump mounting bolts (4 off)

Remove thermostat housing (2 bolts)........why?

Check Cam seals and crank seals, they to will need replacing.
M-m

[Zak]

Just about to do this too! Does the thermostat not need to come off then? Might as well not buy the housing O ring if not.

[Yolo]

Zak not sure about this and MM has been having trouble with his PC so bear with us and someone will answer soon.