Toyota Celica 2.0 Gt

[IGGY545]

I Have A Celica 2.0 Gt M Reg Car Which Has Just Had A New Engine Fitted, On Initial Start-up I Get A Tapping Sound Like All The Oil Has Drained Out The Tappets And The Cam Is Not Getting Lubricated. After About 20 Sec It Runs Fine As It Should, And With No Tapping And No Problems Like This All Day Starting It Again. Does Any1 Know Whether This Is Normal For New Toyota Engines Because I Have Heard That The Engines Are Noise On Initial Starup. I Would Appreciate Any 1 Who Could Help Or Has Had This Problem Themselves.

[andrewl41]

I'm really not sure what the problem is but I can say that mine doesn't ever sound rough when started. I'm sure some of the more knowledgeable members will be along to help you soon.

[GT4 BOOSTER]

its caused by the camshaft stopping on top of a hydraulic tappet at switch off , this squeezes the oil out of that tappet overnight.My 1995 gt had 85000 miles on it , and did this most mornings , the cam shaft is still being oiled dont worry its just the shims tapping until the oil pressure builds up inside the tappet.

[Boost Devil]

it sounds just like what you say, the oil does drain off when being stood over night, this is why you should allow your engine to warm up for a few minuites before driving just to let it get the engine lubricated again...and if its a brand new engine it probably needs time for everything to get bedded in properly, from what i understand 70% of engine wear is from the first 10 minuites of when a engine is started... untill the oil gets pumped around to the moving parts.. and one thing to remember is not to rev the engine when it is cold as this just increases the wear on the unlubricated engine, this is one answer to your question maybe someone else has another theory to what might be going on

[cookci]

use a better oil... 5W 40 should eliminate your problem :)

it gets pumped round ALOT quicker when cold than most oils but them becomes a decent thickness when warm!

[mikeb]

its caused by the camshaft stopping on top of a hydraulic tappet at switch off , this squeezes the oil out of that tappet overnight.My 1995 gt had 85000 miles on it , and did this most mornings , the cam shaft is still being oiled dont worry its just the shims tapping until the oil pressure builds up inside the tappet.

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The 3s-ge doesn't have hydraulic lifters, so it can't be that. It is not usual for these engines to be noisy on startup (although that doesn't mean it's doing any real harm).

Possibly you have a dodgy oil filter, and the non return valve has failed (or a cheap pattern one without a non return valve). This causes the oil to drain back out of the filter when it has stood. Next time it's started it has to fill up the filter before any oil reaches the engine. Maybe try a new oil filter (always use genuine toyota ones).

What weight oil are you using? Mine sometimes rattles for a couple of seconds at most on startup, did it ever since I rebuilt the top end. :( Always assumed it was a cam bearing picking up, due to an intial starvation of oil on the first restart after the rebuild. Since using Castrol RS (0-40W), I haven't noticed it as much. And oil consumption is much lower than the thicker oil I was previously using (10-40W).

[BenMMellor]

Hope the work wasn't done by Lindop Bros in Queensferry - not a very good place to go with your car !

[IGGY545]

NO IT WAS DONE BY A AA SERVICE CENTRE IN ELLESMERE PORT BEFORE I HAD THE CAR, SO ITS STILL UNDER WARRENTY. GOING BACK IN TODAY FOR THEM TO HAVE A LOOK AT BUT JUST THOUGHT I WOULD ASK A FEW PEOPLE ON HERE WOT IT MAY BE BEFORE I TAKE IT IN. THANKS FOR ALL THE HELP

[IGGY545]

I HAVE NOW HAD THE OIL FILTER CHANGED AND OIL BUT THE PROBLEM IS STILL PRESENT ANY1 WITH ANY OTHER IDEAS BEFORE I GO STRIPPING THE ENGINE DOWN TO CHECK THE VALVE CLEARENCE.

[mikeb]

I HAVE NOW HAD THE OIL FILTERCHANGED AND OIL BUT BTHE PROBLEM IS STILL PRESENT ANY1 WITH ANY OTHER IDEAS BEFORE I GO STRIPPING THE ENGINE DOWN.

←

I listened to mine again over the last couple of days, and the top end still rattles on a cold start. But only for 2 seconds at most, then it is gone. It sounds like yours takes a lot longer to quieten down. If it suddenly goes much quieter after 20 seconds, it would imply that there is a shortage of oil to the top of the engine. As you have eliminated the filter/oil as a cause, then it starts to sound more like a lack of oil pressure. Maybe it's a weak oil pump, or a partial blockage in an oil gallery somwhere (not good).

How quickly does the oil pressure warning light go out when you start the engine from cold?

It should be alright in the short-medium term, but you probably don't wan't to pull away until it stops rattling. Of course, you should never rev a cold engine hard anyway. I rarely find any need to go higher than the fast idle speed of 2000 revs for the first mile. Most engine wear does occur when the engine is cold. This is due to components not having expanded to their dimensions of operating temperature. If you are using the correct grade of oil, lack of lubrication should not be the cause of wear on a cold engine.

Go easy on the caps mate, there is no need to SHOUT!

[IGGY545]

Cheers mate. u dnt think it could be the valve clearence do u because it puffs quite alot of smoke out the back at first, and i am just thinking it may be the shimming of the valves causing it when co;d because the valve clearences are different when the engine is hot and cold.

[mikeb]

If it was caused by valve clearances, it would get quieter gradually as the engine warmed up, rather than stop suddenly after 20 seconds. It would take a couple of minutes running before the engine even started to get warm enough to take up the gap.

Oil smoke is not caused by incorrect valve clearances. Oil burning would be due to valve stem seals or oil control rings. I guess if the stem seals are knackered, then they could be letting oil drain out of the bucket/shim area overnight, leaving it unlubricated for a cold start. Just grasping at straws here, and I don't know for sure if that follows.

If it is your stem seals you are likely to see a puff of oil smoke on lift off from high revs.

Do you know exactly what has been done to this engine? Has it been rebuilt or is it low mileage unit swapped from another car without any other work done to it?

I would be inclined to go back to whoever did the work and give them a hard time about your problems.

[sotal]

From all the stuff I read through when I was trying to investigate my disappearing oil, that sounds quite likely.

It was suggested that I might be losing oil through the stem seals and that if I was I would get smoke when starting.

I didn't get any symptoms like that so I gave up on that path, but it does sound likely. You stop at night everything cools down and your oil goes past. Then when you start up that oil is kicked out the exhaust and new oil hs to circulate. You could try thicker oil if that's the case but if you can take it back - DO!

[IGGY545]

Yeh its the engine is a low millage engine, I found out before after giving the company the aa bought the engine from and the engine is still under warrenty with them so they are going to have a look at it tomorrow for me. Personnly tho I would rather do the work myself but that will null the warrenty so have to let them sort it. Anyway thanks for your help anyway and i will post when the problem has been sorted to let you know wot it was :) .