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Thread ID: 141399	2015-12-12 19:22:00	Mazda Capella engine.	tut (12033)	PC World Chat

Post ID	Timestamp	Content	User
1412693	2015-12-13 02:37:00	Still has absolutely no compression on any of the four cylinders. That I believe is the clue. ;) mickb may be onto it.	B.M. (505)
1412694	2015-12-13 03:10:00	I'd go along with that to. My theory would only work if the engine was assembled correctly.	Driftwood (5551)
1412695	2015-12-13 03:22:00	My old Vauxhall was really stuffed, you could rotate the crankshaft using the fan as a lever, after you stopped turning the crank still kept moving in direction of rotation, ie very little to no compression at slow rotation speeds. Because I kept I maintained (plugs, points etc) it always started first pop and would drive around town, ChCh, perfectly well, just didn't climb hills well. Of course, due to the poor compression it suffered from positive crankcase pressure and would blow oil into the aircleaner so I fixed that with a coke bottle reservoir addition, lol, used to pour the oil gathered back into the engine every few days. I also think the mechanical timing of the crankshaft vs camshaft has been wrongly setup.	zqwerty (97)
1412696	2015-12-13 05:22:00	Nothing wrong with it that money won't fix Ken :)	kenj (9738)
1412697	2015-12-13 05:49:00	Here's a no compression story for you. I new a builder back in the early 80's who had a HQ Holden wagon. It was using oil & not far away from a rebuild. In those days you would repair a car rather than throw it away like you do now. Anyway, he got caught short on the way home from a country job one night when the oil light came on. Nothing showing on the dipstick at all. No cellphones in those days either. All he had on board was some linseed oil. So he tipped that in and drove home. Next morning it wouldn't start, no compression & turned over very slowly. When they pulled it down the rings were part of the pistons & the oil had set like varnish over every thing.	Driftwood (5551)
1412698	2015-12-13 22:25:00	Doesnt the alu head go soft (ie its stuffed) if its been badly overheated ? or just an urban myth ? basic compression testers will be pretty cheap from Super Cheap Autos . And they sell cans of stuff that 'fixes' worn out engines :banana	1101 (13337)
1412699	2015-12-13 23:36:00	Doesnt the alu head go soft (ie its stuffed) if its been badly overheated ? or just an urban myth ? basic compression testers will be pretty cheap from Super Cheap Autos . And they sell cans of stuff that 'fixes' worn out engines :banana By the sounds of it, you would want to buy that "stuff" by the 44 gallon drum. Ken ;)	kenj (9738)
1412700	2015-12-14 00:25:00	Alloy heads are prone to warping if overheated, I think that's were the stories started. Also what can happen is the actual Block can get warped and no amount of head planing can fix that. Some engines never seem to be completely right again after a serious overheat. I had a 1977 mazda 929 that overheated after I hit a tree stump with the bottom of the radiator(who knew the temperature sensor doesn't work when there's no water at all). The head was planed twice, and the head gasket replaced 4 times, before I just gave up on it. It would blow the gasket in a straight line down the centre every time, a really expensive gasket managed to last 2 weeks. Reminds me of a bit of nostalgia: The Mazda had one last journey before the scrap heap, we stripped the body and mounted 4 large black plastic drums in the wheel arches to look like giant mags and took it down the river in a raft race. Drinking the whole time and with a stated mission to come last. We failed though, 2nd to last was the best we could do. The best part was going under the bridges when someone dumped a bottle of blue die on us, we just sat inside the car and it all ran off the roof.	dugimodo (138)
1412701	2015-12-14 02:12:00	There you have it, we were trying to break the news to tut gently pctek. And cheaply? Cause my son did that. Cooked it, bought another head, had that installed, had the oil seal leak fixed, had some other leak fixed, at which point I told him to stop feeding money to a dead car - one cluttering my driveway - and sell it. He got $420 in the end.	pctek (84)
1412702	2015-12-14 02:51:00	Assuming that there is no compression on all cylinders, valve clearance is correct, and the camshaft is turning, the possibility of it being 180deg out is very likely. The rings would have to be practically non existent to produce NO compression, and unlikely to be all cylinders. First do the compressed air leak test. Then check the valve timing.	mzee (3324)
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