need help please

just "stalled" while driving home and won't restart
turns over fine

valves move so timing chain ok.
all plugs ok, no oil water or fuel on em.
has spark.
has fuel.
has no compression on ALL 4 cylinders (only checked with the old stick a finger in test)
not blowing air into radiator.
no hole in the block where a piston has tried to escape.

I'm lost?

help please - ideas?

how many ks on the motor
the rings could easily loose the tension when hot

they are aprox $50 a set

or the valve seats worn (re lap )

so you can take the head off and inspect the valves for leakage
and re ring the motor in the car with the sump off

about 300k plus on it, but it ran fine up until Sunday night.
for all 4 to lose compression at once simply can't be rings?

i'm thinking now maybe timing chain has slipped, or tensioner has broken?

are these motors interferrance (ie: will the pistons hit the valves if timing is out?)

rotate the motor so its at TDC on the timing pully
pop off the dissy cap see if rotor button
is facing straight up to number one cyl

take off the rocker cover and see if the timing dot lines up ok

take out the plugs and do a compression test dry then with a squirt of oil
a wet compression test

the valves dont hit the piston if something goes wrong

cheers mate, most helpful. will have a look this weekend.
it's only a cheapie rally / khanacross car, not a daily :D

but it's too much fun to throw away

if shitt hits the fan thoes enines are a pice of piss to rebuild

i just bought a hilux that has cracked rings on all but one cylinder, all valves are pitted, one piston has a huge chunk missing from the skirt and best of all it spun a big end rod bearing to the degree it was razor thin literally. it was running up until the noise from the bearing got so evident the owner stopped it. but it has very low compression on all but one cylinder but was still running and driving till it stopped.

so it could be that something else has triggered it. i thought the timing chain had slipped to but it had exact timing. so do the comp test as buffy says but often its amazing how far they run down till they stop.

regards jay

Thanks Jay.

the car did an event on Sunday, and won its class (modified over 2L)
so i don't think it had major problems then, or it wouldn't have beat falccons, crummydores and an S13 :D

but duly noted, will pull it apart and looksee and let you all know

http://sport.mwp.id.au/photo/eNpdjcFOxCAURX-leftSaO10fF0ZTVwYN-q-QYYZMLQQHqNOjP8utC6Mu3vuTc6VeI1fhB1CsApGwoEj3NmYqi fpnNVUv0QrHTUtF6IWvOZt9XxTPRi5SBU9UXVr5BysX8jY0EyP 99Nu2A3sLZyKTSB8wmhxz_lGl0J912W6Qjha50pRxh5BSWV0Yb FxMuf59c---KRp1bYI_6-yzvmTX-OA0Bg_62b-CJM850xJHxoKPiaWO2YPLNf-XUcnLywsq2G_Gaag0q-Qs57D-P0Dv2lZrg%2C%2C

great shot looks like it three wheeling .go the gen 1 wagons.

she loves it :)

more pics here (http://sport.mwp.id.au/gallery/Dirt%20Rallies-Trials/2011-10-02%20SA%20Khanacross%20Championship)

Take that Bollard
http://sport.mwp.id.au/photo/eNpdjctOwzAURH8l8j5-JISkNyvUSiwQG2AfGdetjZzY8nWBCvHv2AkLxG7OjHRGwg6-EFogwSoyIvQcyMHGVD1J56zG-iVa6ZA1XIha8Jo31fNd9WDkIlX0iNXeyDlYv6CxgU2P99Ntvxv oWzgXmwDySUYLA-cbXQt1bZvpBsjJOleKMnZAlFRGFxYbJ3OZX__si08aV20D5P9V 1jl_9mvsgTDjZ83mjzDJS86Y9JFh8DHR3FF7pLn27zo6eaVhWQ 3DZpiCSr9CTjtOxu8fxDtZtg%2C%2C

yea they love it dirty.lol do you have any you tube video,s

only this one in the Magna Carta

http://www.youtube.com/watch?v=v6prMPNxydw

from the first event (a Rally) where we won the intro class - sewwt

nice driving. my old girl needs a birthday got a rebuilt tr motor and 5 speed to put in her.the motor is out off my old wagon that got writting off by a jeep, hope you get the conpression issue sortted its weird that all four have lost comp

haha nice they handle bueatifuly on gravel

yea( private roads)

what does private roads mean :P need to find that over here but need to do before i respray her

means that no so called hoon behavior was done on a public road.

got to love the body role into the turn. that's the only thing i dont like about mine, especially when throwing it around roundabouts it gets a bit scary lol. ide love to see what the ford and especially holden drivers thing when a stock 2.6 4 banger beats them. but i can totally understand why you love the old girl.

there is allot of reason to getting it back on the track to stick it up the rest of them im sure lol.

them round abouts are on private driveways.

yeh...thats right. my front yard is a huge roundabout lol

Put stiffer springs it will help, as it help in my TR body roll. I know it a different car to my one.

rotate the motor so its at TDC on the timing pully
pop off the dissy cap see if rotor button
is facing straight up to number one cyl

take off the rocker cover and see if the timing dot lines up ok

take out the plugs and do a compression test dry then with a squirt of oil
a wet compression test

the valves dont hit the piston if something goes wrong

update:

ok, rocker cover off, timing chain looks perfect.
little bit of slack, but nowhere near enough to be able to skip teeth.

with No1 at TDC (timing dot on pulley is at TDC), rotor is pointing towards no2 cylinder - this is normal?
i sorta thought at TDC, rotor would point towards no1 ?? (as per above post)

after chatting to a mate, think it's prob blown the HG between cylinders, hence no compression, but also why no oil in water or vice versa.
should really go buy a comp tester...

will rip off head next weekend and looksee and report back

the rotor brass bit should be closer to number one than two

what may have happened is

the rubber ring on the harmoninc balancer has weakened or moved
this would change the position of tdc at the crank
and not at the dissy

hmmm ok...

so if that rubber ring has moved, then the balance shaft can also move which will mess up the timing??

i cant see timing dropping comp on all cylinders. madlante from sa has a manaul he was selling .rotor should be pionting to the conector plug on the dizzy wich is number 1 on the cap hope this helps.

I have had several 2.6 motors where the balancer has come loose
and cant time them with a light

not a chain problem at all

may explain why the rotor position looks wrong

the brass bit of the rotor has to be at the number one cyl on the cap
when the timing mark shows on the balancer is at tdc (manually..turned by hand)

from millstp http://www.aussiemagna.com/forums/showthread.php?t=64638

best to check this before you take off the head
because it it isnt in correct position it wont start after the rebuild

thanks both for the tips.
that link to the head thread is great thankyou.
question - how is the timing chain pulley staying up?
what is stopping it and/or the chain from dropping?

yeah I'll have to get a manual, um, ah, erm, I don't even know where the balance shaft is
but I'm learning

there is a metal ledge just below the cam
inside the timing cover
you keep the timing chain on the cog and it
rests on that support till you go to refit after you replace the head

the dot on the top timing cog is at 3 oclock
the scroll pin has to be at 12 oclock and tigtened by the 22mm nut

rocker bolts are 19 nm max head bolts torque will be on the gasket set (VRS)

if re ringing the motor
sump gasket has to be bought qenuine mitsubishi only

http://i253.photobucket.com/albums/hh59/magnabuff/timingcogandrest.jpg

sweet. nice work by the designers, accidental or deliberate?

ok zero compression in all 4
when somebody else is turning the key and I'm close to the motor, there's a noise like pistons hitting valves.
timing chain is well loose
executive decision to scrap her and fix the stigma

she served us well, 2 trophies in 2 events, so it's off to magna heaven
if anybody wants any parts for next to nothing, or even nothing!, post away or pm

windscreen is brand brand new, only fitted 5 weeks ago
come take it for a couple classic chocolates :-)

the car will be gone by Friday
TN wagon manual air con

thanks for all your help guys
I still have 2 other magnas btw :-)

you can do in car rebuilds in theses car . no need to remove the motor. i,ve done two in car rebuilds there not hard

yeah but - no garage. it's all done ghetto spec in the street.
not a good look ;-)
next event is in 2 weeks
next weekend will be officialling at Kuitpo rally
so no time to repair either

take back rego $100
battery for dads tractor saved $80
wreckers come and get it $130

buy another car, running, today $200

so I'm in front $110, which will almost pay for rego on it

we'd love to keep the wagon, but all good things must come to an end

did you wanna throw this us in the for sale section, I don't have enough posts up
understand if it's not allowed

basically parts for free, would like choccy milk for windscreen haha

whoops

dont think the mods would like that. good luck with the new car hope its another magna.

unfortunately it's an Excel.

but I still have 2 Magna's - 1 a daily and 1 a recce car
and of course I still have the Stigma of Love, running a 2.6 Astron with quad motorbike carbies
linky to the Stigma (http://www.oldcolts.com.au/Stigma.html)