Ok so you drop a small washer down the carb and start car...
Discussion
So you accidentally drop washer down carb(without knowing you have) and start the car!!Eek,just done this with a renault 5 turbo im restoring.
Ive looked down the bores with a camera and see little scars and tiny little blobs in one cylinder.It was a really crappy soft thin washer.
The car starts perfectly,idles perfectly but if you rev it theres a little hestation the second you touch the throttle then it revs freely?
When the cars revving highish with choke on theres a little miss every few seconds,with choke off theres no missing,just when you rev it?Seems quite a subtle fault,i would have expected any internal damage to have caused more harm?
Im going to do a compression check and see what that turns up.What kind of symptoms should a slight scratching in one cylinder cause?
Car has new plugs and carbs been sonically cleaned,rebuilt.
Ive looked down the bores with a camera and see little scars and tiny little blobs in one cylinder.It was a really crappy soft thin washer.
The car starts perfectly,idles perfectly but if you rev it theres a little hestation the second you touch the throttle then it revs freely?
When the cars revving highish with choke on theres a little miss every few seconds,with choke off theres no missing,just when you rev it?Seems quite a subtle fault,i would have expected any internal damage to have caused more harm?
Im going to do a compression check and see what that turns up.What kind of symptoms should a slight scratching in one cylinder cause?
Car has new plugs and carbs been sonically cleaned,rebuilt.
Well it could do anything from little damage, to lots of damage.
It has to work it's way through the engine, bashing the pistons, head, valves, and if it gets past those, then out through the turbo.
Here's one where a guy dropped a small nut in, clearly he came off a lot worse.
http://www.camaro5.com/forums/showthread.php?t=424...
It has to work it's way through the engine, bashing the pistons, head, valves, and if it gets past those, then out through the turbo.
Here's one where a guy dropped a small nut in, clearly he came off a lot worse.
http://www.camaro5.com/forums/showthread.php?t=424...
A compression test and leak done test is in order, also a close inspection of the cylinder to make sure no remnants of the washer remain, bear in mind that it is perfectly possible for a foreign body to be ejected back into the inlet manifold where it can lurk waiting to cause more carnage. If you can inspect this then you should do so.
Dave
Dave
From the film "My Cousin vinny"
"...It's a procedure. Like rebuilding a carburettor has a procedure. You know, when you rebuild a carburettor, the first thing you do is you take the carburettor off the manifold? Supposing you skip the first step, and while you're replacing one of the jets, you accidentally drop the jet, it goes down the carburettor, rolls along the manifold, and goes into the head. You're f****d. You just learned the hard way that you gotta remove the carburettor first, right? So that's all that happened to me today. I learned the hard way. Actually, it was a good learning experience for me.
"...It's a procedure. Like rebuilding a carburettor has a procedure. You know, when you rebuild a carburettor, the first thing you do is you take the carburettor off the manifold? Supposing you skip the first step, and while you're replacing one of the jets, you accidentally drop the jet, it goes down the carburettor, rolls along the manifold, and goes into the head. You're f****d. You just learned the hard way that you gotta remove the carburettor first, right? So that's all that happened to me today. I learned the hard way. Actually, it was a good learning experience for me.
Theres no smoking from the exhaust regarding the turbo.I cant believe the sodding washer would have gone down there,thats why i started it!If anyone knows these cars i was removing the plastic 'lobster' from the top of the carb,tilting it towards!!! me,so away fom the bloody carb,while doing this a washer which from years of fitment is sunk into the plastic disappeared!!
I instantly thought to myself no,it couldn't have,as i was taking the lobster away from the carb!!!The washer would had to have jumped up in the air then miraculously found a forward momentum to go back towards the car body!!!!
Just can't believe my luck.Compression test in next few days.I 'll report back with my predictably dire results.
I instantly thought to myself no,it couldn't have,as i was taking the lobster away from the carb!!!The washer would had to have jumped up in the air then miraculously found a forward momentum to go back towards the car body!!!!
Just can't believe my luck.Compression test in next few days.I 'll report back with my predictably dire results.
robbocop33 said:
Theres no smoking from the exhaust regarding the turbo.I cant believe the sodding washer would have gone down there,thats why i started it!If anyone knows these cars i was removing the plastic 'lobster' from the top of the carb,tilting it towards!!! me,so away fom the bloody carb,while doing this a washer which from years of fitment is sunk into the plastic disappeared!!
I instantly thought to myself no,it couldn't have,as i was taking the lobster away from the carb!!!The washer would had to have jumped up in the air then miraculously found a forward momentum to go back towards the car body!!!!
Just can't believe my luck.Compression test in next few days.I 'll report back with my predictably dire results.
You could bash the turbine blades with a hammer and there'd still be no smoke so that means little.I instantly thought to myself no,it couldn't have,as i was taking the lobster away from the carb!!!The washer would had to have jumped up in the air then miraculously found a forward momentum to go back towards the car body!!!!
Just can't believe my luck.Compression test in next few days.I 'll report back with my predictably dire results.
If it has gone through the engine, it will have caused damage inside the engine, and possibly to the turbo itself.
The damage may not be terrible or catastrophic, but until it's actually taken apart to inspect, you'll never know.
Of course it also depends on the size of the washer, how big those risks are. It isnt a nice situation, and you could just take a gamble and drive on if you think the washer is no longer in the engine.
But it would be nice to know it isnt in there.
stevieturbo said:
You could bash the turbine blades with a hammer and there'd still be no smoke so that means little.
If it has gone through the engine, it will have caused damage inside the engine, and possibly to the turbo itself.
The damage may not be terrible or catastrophic, but until it's actually taken apart to inspect, you'll never know.
Of course it also depends on the size of the washer, how big those risks are. It isnt a nice situation, and you could just take a gamble and drive on if you think the washer is no longer in the engine.
But it would be nice to know it isnt in there.
It was a small,thin washer.From what i could see with my camera probe thingy it seems to have nearly instantly melted!!a couple of scratches on one cylinder wall and a couple of little melted beads stuck to top of the piston.If it has gone through the engine, it will have caused damage inside the engine, and possibly to the turbo itself.
The damage may not be terrible or catastrophic, but until it's actually taken apart to inspect, you'll never know.
Of course it also depends on the size of the washer, how big those risks are. It isnt a nice situation, and you could just take a gamble and drive on if you think the washer is no longer in the engine.
But it would be nice to know it isnt in there.
robbocop33 said:
It was a small,thin washer.From what i could see with my camera probe thingy it seems to have nearly instantly melted!!a couple of scratches on one cylinder wall and a couple of little melted beads stuck to top of the piston.
There is no chance of a steel washer melting in there.stevieturbo said:
robbocop33 said:
It was a small,thin washer.From what i could see with my camera probe thingy it seems to have nearly instantly melted!!a couple of scratches on one cylinder wall and a couple of little melted beads stuck to top of the piston.
There is no chance of a steel washer melting in there.
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