2,0 TS - bad engine - Alfa Romeo Forum
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2,0 TS - bad engine

My 2,0 TS Selespeed from 1999, have just got the timing belt changed - after a breaking. The top was alse changed at the same time.

The car was running a bit unstable after the change, but it drove OK. After driving 50 km the car lost the powers and there came a noisy sound from the engine.

I have been told diffrent things that can be wrong with my car
1. The crank can be broken or the bearings in the crank
2. The variator can be broken

I am considering to change the engine (expensive), but I have already posted a lot of money in the engine.

Wich fault do you guess my engine has and is it woth to spend more money on it?
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did you use cam locks and dti to time cams up?
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(Post Link) post #3 of 23 Old 01-04-10 Thread Starter
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Yes.
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Were the big-end bearings changed as part of the timing belt repair?

What kind of noise is it?
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have you taken covers off to see if belt is still intact?
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The big-end bearings were not changed.

The noise is like there is somethins loose in the engine.

The belt must still be intact (not checked), but the car was running and I stopped it my self.
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The big end shells must be changed after a belt snap because the shock caused by the pistons hitting the valves is transfered down the conrods and causes a flat spot on the big end bearing shells, this in turn leads to failure of the bottom end of the engine, this can happen up to a couple of thousand miles after the top end rebuild has been done

TBH it sounds like big end damage
 
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To have this confirmed I have to take of the sump and then it is possible to see - right?
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To have this confirmed I have to take of the sump and then it is possible to see - right?
That's the best way...
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If the problem is big-end bearings - is it the a difficult job to do?
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If the problem is big-end bearings - is it the a difficult job to do?
probably wrecked ya crank
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The bearings are easy enough to change if you've caught them in time. It doesn't take long to wreck the crank though, which is major surgery to repair.
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Yep I'd second the big end going. Thats a must change item once the belt has snapped
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I think a loose rattle sound is big ends in it!
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Yes a rattle is one description - usually before complete failure which is more like a knock.
Jack-d - how far were you driving it after you noticed the noise - almost certainly big end failure with a bit of luck your crank is Ok
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Compared to many cars changing the "big ends" on an Alfa twinspark is an easier job than you may think in fact its pretty simple but time consuming. The job can be done in a few hours if you have done it even just once before knowing the tools to use.These forums are great for info on Alfas as ive learnt a lot yet ive been in the motor trade donkeys years.

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The twinspark is a great engine, can reach 150,000 miles if serviced properly.
Belts and tensioners every 36,000. Oil and filter every six months (5 or 10w/ 40 not tesco)
Water and coolant every 2 years. and not thrashing it at every oppotunity it should be reliable and have a long life.
I've added about 28,000 miles to my 2.0ltrs twinspark (54,000 miles total on clock) and it still drives perfectly and use hardly any oil between services, not even half a cupful.
A superb engine that deserves to be looked after and not skimped on, ie Original parts only esp oil filters.

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The twinspark is a great engine, can reach 150,000 miles if serviced properly.
A well serviced twinspark will do alot more miles than that 200,000+
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A well serviced twinspark will do alot more miles than that 200,000+
Totally agree, the trouble is so many engines blow up before then due to neglect and ignorance that it is quite rare.

I have seen a few cars with well over 150k showing and the engines have sounded as good as new.
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i drove about 5 to 10 km after i noticed the sound. But the sound disapered for a while before it came back.
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i drove about 5 to 10 km after i noticed the sound. But the sound disapered for a while before it came back.
In that case I think it is almost certain the crank will need regrinding.
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where to buy the parts for this online?
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where to buy the parts for this online?
if your crank is duff local engine builder(machine shop) will grind crank up and supply shells to fit
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