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Has anyone left the timing covers of an EJ25? i am building the motor up and thought that would tickle my fancy seeing the timing belt and all those cool idlers and stuff spinning. (i'm getting excited just writing about it:-D)

the only problems i see are dirt getting on the belt. is that a problem it seems to be pritty dirty in there anyway?

Second problem i see is me working on the motor with it running:mrgreen:.

i know i'm going to get told of and hasseled for thinking of doing this but surely others like watching things go round. (think of the spray it will put up going through water:-D)

On a serious note i have 2 ej25s with different timing belt tensioners. one is long and thin with 2 retaining bolts the other has one single bolt. does this give me any hints on the age of the motors and can they be interchaged?

I can't imagine any major problems from this but it is a fair risk given they are protective covers.
Maybe you could think about constructing some kind of clear perspex covers or something like that.

i really wouldnt do that considering where you go mate
ive seen some covers with just busted seals and rocks and sand will have a detremental effect on the life of your cam belt,idlers,tensioner bushes , etc etc i really DO NOT advise that you do that if you do keep well away from the dirt
although the perspex idea could be the go if you really want to see em spinning
cheers frog

i heard/read that people do this so that timing an other small adjustments can be made later

what can you adjust ?

I think the perspex cover would be a good idea if you really want to see every thing going.

your all scaring me off now.

my worry is actually the seals and belt life because i do get playing in the mud. maybe it's a nice idea but really stupid.

It does sound good and will look good for as show car.. but in little while it will become dirty and dusty even inside and outside so not really worth mucking around......
What is it required to adjust there?
Cheers
AP

are you being serious dude?

alex

I didn't actually think many cars had covers over the belts anyway...

If you had an old cover with broken seals and such, i could see rocks and dust doing more damage with the covers still on then off. Because if covers on rocks etc would all keep in the covers bouncing around.

i didnt tell u that Subafury.


heaps of guys on USMB seem to do this. on there EA82's coz it reduces the belt changing time DRASTICALLY...lol

but no not good offroad and i wuldnt do it onroad either but thats just me.

if it jumps a tooth u can have serious problems.

The single pivot cam belt tensioner is the later model set while the cam and piston are the earlier setup.

As said before if you get a rock in the cam belt and it does a lap you could end up walking home. BUT if you fit a large stone guard under the front that encases the underside of the motor back to the CV's then it would make it extremely difficult to get something bad in there. Word or warning though is that an uncovered timing belt letting go at high revs will make a fair mess in there and could smash the battery to name something that could do more damage