how do you blow a engine

[bigpoppa81]

i know on first reading the subject title it would be stupidly obvious but ive always wondered? it is more likely to happen when the engine is a high miler and has been ragged all its life? or is it if you red line on every gear all the time?



answers please?



its when i drive my car i never red line it incase i blow the engine (gay i know) but is it that simple?

 

[Kelly]

No, you wouldnt blow an engine just by redlining it - thats why there are rev limiters on most cars

 

[cliosportcraig]

Ragging from cold can knacker your engine !! Maybe warp the head !! Dunno about blowing gaskets etc !!

 

[James20VT]

if u dont service the car, i.e cambelt changes etc... then your engine will blow... things only last too a certain extent before saying bugger this!

 

[McBunny]

yes but if there isnt a rev limiter you will blow it or if the limiter has been moved and you get oil starvation or something that will balls it up. too much torque will bugger it too if things arnt uprated to cope it will just shear things

 

[Dash]

Expecting more than it is capable of I should think ?

 

[RobFenn]

Overheating or bad lubrication or detonation or just misassembly..

 

[Homer]

Quote: Originally posted by RobFenn on 13 February 2004

Overheating or bad lubrication or detonation or just misassembly..

bad lubrication..........hmm, that could be painfully !

I saw an Alfa 156 let go once, that made a nice bang, cause, oil starvation on number 4 cylinder..........nice hole in the side of the block too !

 

[BenR]

When you blow an engine its typically from overspeeding the internals, where rod stretch, big end bolts let go, cranks crack, pistons come off and it hits the valve, then that gets mashed up, holes in pistons throws oil out the engine, white smoke.

But there is overheating, and siezing, lots of ways to blow one up, but typically the rev limiter should prevent you from overspeeding.