Question about Cars & Trucks
I have a 2001 Gaia 1az fse and my problem is that the car does not have enough moving power if you rave it in parking it gives a good rave but if you engange it in drive the rave dropes and it loses power,i changed the cylinder head and placed a new one change all valves,piston rings,plugs, oil and gasket but still its not perfoming please any one with help will kindly be appreciated.
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Posted on Jan 02, 2017
Yes, you can, but not exactly recommended. If you are going to go that deep into it, then might as well do everything else. However, being unemployed tends to have a negative impact on the wallet....
I suspect it is more than just rings. I think that the walls have been scored badly as well. You may be able to use a borescope to take a peak into the cylinder through spark plug hole. Move the piston to bottom of stroke, and see what you can see. If scarred, much work will be needed. If hatches look alright, then you might be able to get away with just rings.
What kind of compression are you getting on #1 vs #2? This also might be a blown headgasket into an oil passage, or the head (perhaps block?) is ever so slightly warped in this area.
Posted on Aug 29, 2009
Testimonial: "Thanks for the quick response. Very much appreciated your input, all makes sense and got my mind on the right track again. Thanks"
I have toyota corona 3s engine it smokes black and fuel consuption is high we have changed the engine oil and cylinderhead gassecate but still black smoke is comming what should i do
Posted on Mar 29, 2010
Hi, Yes it certainly could be especially if water gets in. You should also check the distributor cap. The misfire sounds like an arcing problem so it would have to be one of those two things since you changed the rest. Good Luck!
Posted on Feb 25, 2009
The valve cover gasket isn't hard to change. Oil on the plugs indicates a more serious problem. Smoke from the exhaust would be from rings, rich mixture, worn valve guides. It may be that the engine is overfull (that would show on the stick). Oil loss from a leaking gasket would smoke under the hood and leave oil on the engine and the ground.
Posted on Mar 25, 2011
Testimonial: "Thanks a lot for your comment."
This should have been done the first time. When an engine overheats and blows a gasket the head should always be checked out and resurfaced flat. A .005" warpage in a head can and will blow gaskets. There could also be a hidden crack that the mechanic can't see.
Posted on Jun 26, 2011
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