March 21, 200521 yr I know its a hard question to answer, but im just after some comparisons with non turb ea81s and even ea82s. Im asking this because i have never seen or heard another ea81t, so i have no idea what mine should sound like! Cheers.
March 22, 200521 yr Author Hmm, mine doesn't get any smoother when warm. Must be those hydrauilc lifters i spose.
March 22, 200521 yr Author i may have mentioned it before, but i think this engine has had a major prob at some stage, maybe a blown head gasket that was left for too long. I think the only thing that was done when it was fixed was a new turbo (still shiney!), and new rings (burns little to no oil). I dont think the valve seals/giudes were done, as it has lots of blowby; the hydraulic lifters don't seem to work, and under the rocker covers and inside the pcv hoses is full of grimey grity sludge (The pcv hoses were all but blocked up with it). I also noticed it blew a whitish grey cloud when i started it today, just for a few seconds. Never seen that before. The oil pressure light also sometimes takes a good 1-2 seconds to turn off when its started. Still, it runs well, if a little rough and noisey, stays cool no matter what its doing, gets good mileage, starts first turn every time. Im sorta tossing and turning over whether to take it out and put the other one (carb) in while i recond the ea81t. Any opinions?
March 22, 200521 yr I wouldnt bother going to carb I would just recon the engine and stick it back in. Too much work to re-do exhaust, de-turbo it, etc compared to just rebuilding the engine and sticking it back in. A new PCV valve and clean the hoses out seems in order while youre at it.
March 22, 200521 yr Author i have an '81 carb'd motor sitting in the garage, complete with everything including whole exhaust system (in fact, i still have the whole car), so i reckon i could just shove that in there temporarily while i have the ea81t out. I figure all i'd have to do is power the coil and fuel pump, and hook up a couple of the sensors. leave the rest of the cars wiring tied up out of the way. Am i missing something???
March 22, 200521 yr Author nsane']Tune up? I have been consistently 'tuning it up' for the last few months now......heres a list in no particular order: Reconditioned vacuum advance diaphragm Replaced ignition module replaced thermostat re conected a disconnected centrifugal advance spring replaced spark plugs, ignition leads, coil Tried to set valves properly, but hla's arnt moving cleaned lots of connectors replaced a leaky fuel injector replaced knock sensor replaced stator magnet in distributor thats about all i can remember at the moment, but as you can see, ive been pretty buisy since it was bought a few months ago! It certainly runs better now, just not as good as i think it should.
March 22, 200521 yr If it did blow a HG, it could be that it sat to long without having the water in the cylinders drained. That would pit the walls and might cause these problems. It might be a shot in the dark too
March 22, 200521 yr dude if your going to be pulling a motor down and rebuilding it there is a guy up north of Auckland that seems the shizzle for getting parts at real cheap prices like a set of moly rings for $125 and rear seals $13 front $5 (NOK brand, same as OEM) these items i've gotten from him an thats what i payed Bowden Engine Parts is his trade name
March 22, 200521 yr ... I also noticed it blew a whitish grey cloud when i started it today, just for a few seconds. Never seen that before... Does your EA81T still have the automatic transmission? If so, could be ATF due to a bad vacuum modulator diaphram. ... The oil pressure light also sometimes takes a good 1-2 seconds to turn off when its started... If your oil pump is getting tired this may account for your oil pressure and maybe part of your hydraulic lifters not seeming to work. Also, could the "lots of blowby" just be because of the PCV system being marginal/plugged?
March 22, 200521 yr Author Does your EA81T still have the automatic transmission? No, that was the first thing i did when it was bought - put a 4dr in . I might try a new pcv valve and clean/replace all the hoses before i pull the engine. Is there a difference between the turbo and non turbo oil pumps? If not, i could try my other one that i know is pretty goo in there. Those parts are cheap! Thanks, ill try him next time i need anything.
March 22, 200521 yr No, that was the first thing i did when it was bought - put a 4dr in ... Sorry, I was a computer programmer so I still suffer from illiteracy. I just noticed this in your signature...
March 22, 200521 yr Anyone know about any difference between turbo/non turbo ea81 oil pumps? Can't say for sure because I am sitting at my desk supposed to be working. But when I was changing the oil filter on my EA81t it appeared that there were extra oil lines attached to the oil pump. I presumed that these were the oil lines to the turbo. So, unless I am wrong, that would be a difference.
March 22, 200521 yr Anyone know about any difference between turbo/non turbo ea81 oil pumps? Pumps are the same and motors are smoooth.
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