2.5ltr classic's, how much oil do you burn
17 February 2008, 09:54 PM
#91
Basically I cocked a gear change up and over revved the engine. To add insult to injury when I was talked into the rebuild and a price was agreed the rebuild was to consist of arrow rods and omega pistons.
When the engine was returned to me in bits I found out I had Eagle rods and CP pistons, somewhat cheaper items.
I've learnt to do things myself since then and have never looked back!!
When the engine was returned to me in bits I found out I had Eagle rods and CP pistons, somewhat cheaper items.
I've learnt to do things myself since then and have never looked back!!
18 February 2008, 05:02 PM
#92
Scooby Regular
Thread Starter
Join Date: Dec 2006
Location: essex
Posts: 492
Likes: 0
Received 0 Likes
on
0 Posts
thats well bad luck,
had another look around the car today and still no joy with where the oil had gone, asked a few mates that i was driving around with a few weeks ago and they also never see any smoke from exhaust,
also the car was run in on its standard heads, (uk turbo) but it had breathing problems at the 450bhp mark, the tuner then (as good will) offered to pay (as he did) for the cam shafts to be reprofiled as the originals seemed to be the wrong ones for that model, the valve seats were then cut back and the engine then re-fitted, if the company, (not the tuner) had messed the heads up (cams or valves) would this burn oil at all, or could the valves have hit the piston, not sure of the proceedure of this but i know the basics of a 4 stroke engine, thing is when, (as told by the tuner to fill the oil up to normal and turn engine on and run to operating temp), i run the car it had no noise (that i could hear) apart from at 1.5 to 2k revs (very loud clonking from the block), which is what makes me belive it to be the big end gone,
had another look around the car today and still no joy with where the oil had gone, asked a few mates that i was driving around with a few weeks ago and they also never see any smoke from exhaust,
also the car was run in on its standard heads, (uk turbo) but it had breathing problems at the 450bhp mark, the tuner then (as good will) offered to pay (as he did) for the cam shafts to be reprofiled as the originals seemed to be the wrong ones for that model, the valve seats were then cut back and the engine then re-fitted, if the company, (not the tuner) had messed the heads up (cams or valves) would this burn oil at all, or could the valves have hit the piston, not sure of the proceedure of this but i know the basics of a 4 stroke engine, thing is when, (as told by the tuner to fill the oil up to normal and turn engine on and run to operating temp), i run the car it had no noise (that i could hear) apart from at 1.5 to 2k revs (very loud clonking from the block), which is what makes me belive it to be the big end gone,
18 February 2008, 05:05 PM
#93
Scooby Regular
think your going round in circles mate, you can get 100 different possible reasons and it wont be the right one.
i know its easy to say wait and see what they say, but thats your only option.
i know its easy to say wait and see what they say, but thats your only option.
18 February 2008, 05:11 PM
#94
Scooby Regular
Thread Starter
Join Date: Dec 2006
Location: essex
Posts: 492
Likes: 0
Received 0 Likes
on
0 Posts
lol i know my bad but im just trying (while im waiting) to see if anyone has seen this before, if i try and explian everything i know then it may give someone of the 78000+ members more of a clue,
18 February 2008, 05:19 PM
#96
Scooby Regular
Thread Starter
Join Date: Dec 2006
Location: essex
Posts: 492
Likes: 0
Received 0 Likes
on
0 Posts
didnt rev over 2k too scared, sounds like something is knocking,but gets faster/louder with more revs it was when it was warm, but it idles fine,
18 February 2008, 05:44 PM
#99
Also known as daz
Going from past experience id say your plugs being lagged in oil and being black could indicate any number of things.
Im inclined to go with incorrect fuelling causing bore wash which killed off the big ends and possibly munched a piston ring or two.
Im being purely speculative in this so i could very well be wrong in my assumptions, i had an engine similar in design do this, bore wash is a killer especially in highly stressed engines.
Either way all the best for an amicable solution to this debacle.
Iirc bore wash causes the fuel to thin the oil making it easily burned off by the engine, would explain where it all went to.
Im inclined to go with incorrect fuelling causing bore wash which killed off the big ends and possibly munched a piston ring or two.
Im being purely speculative in this so i could very well be wrong in my assumptions, i had an engine similar in design do this, bore wash is a killer especially in highly stressed engines.
Either way all the best for an amicable solution to this debacle.
Iirc bore wash causes the fuel to thin the oil making it easily burned off by the engine, would explain where it all went to.
Last edited by hux309; 18 February 2008 at 05:54 PM.
cheers hux309,
18 February 2008, 06:03 PM
#101
Also known as daz
It can im afraid, i had a fully forged mi16, it had everything, engine alone was over £6000 and after 1500 miles it went pop.
Bore wash was one of the factors that contributed to it's demise.
And that drank and abhorrent amount of oil, both dino oil and motul 300v.
But we all try to learn by our lessons.
Bore wash was one of the factors that contributed to it's demise.
And that drank and abhorrent amount of oil, both dino oil and motul 300v.
But we all try to learn by our lessons.
18 February 2008, 06:13 PM
#104
Scooby Regular
Thread Starter
Join Date: Dec 2006
Location: essex
Posts: 492
Likes: 0
Received 0 Likes
on
0 Posts
o of course just want to see,
i just cant see what i could cause to make it over fuel (if it has), therfore why would it be my fault, sorry to drag on....
i just cant see what i could cause to make it over fuel (if it has), therfore why would it be my fault, sorry to drag on....
18 February 2008, 06:17 PM
#105
Also known as daz
Don't be, i felt the same when my engine went bang only i gave up and gutted the car for all she was worth.
Like dazdavies said, you can't beat building the thing yourself or at least buying the parts then taking it to someone reputable to put together that way you know what is inside and in a strange way makes it your engine.
Just sit back and wait for the outcome only scoobymania can really add anything valuable to this thread, all the rest will just be opinions and conjecture.
Frustrating i know, but you learn to accept things like this as you get older.
Like dazdavies said, you can't beat building the thing yourself or at least buying the parts then taking it to someone reputable to put together that way you know what is inside and in a strange way makes it your engine.
Just sit back and wait for the outcome only scoobymania can really add anything valuable to this thread, all the rest will just be opinions and conjecture.
Frustrating i know, but you learn to accept things like this as you get older.
18 February 2008, 08:54 PM
#109
Scooby Regular
Join Date: Dec 2002
Location: devon
Posts: 2,944
Likes: 0
Received 0 Likes
on
0 Posts
[QUOTE=catons scooby;7665425]
also the car was run in on its standard heads, (uk turbo) but it had breathing problems at the 450bhp mark, QUOTE]
my 2500cc is on untouched UK heads as well . all fine here at 450+
well, except what i said in a previous post that it does use a little more oil than my old 2 litre, but on the other hand, it does get 'used' more .
in fact it only comes out for dates at castle combe and shakespeare drag strip.
also the car was run in on its standard heads, (uk turbo) but it had breathing problems at the 450bhp mark, QUOTE]
my 2500cc is on untouched UK heads as well . all fine here at 450+
well, except what i said in a previous post that it does use a little more oil than my old 2 litre, but on the other hand, it does get 'used' more .
in fact it only comes out for dates at castle combe and shakespeare drag strip.
19 February 2008, 12:41 AM
#112
The oil level is dropping rapidly, for bore wash to be a factor the oil would be diluted with fuel which would actually bring the level up.
It is very easy to diagnose though. Pull out the dipstick and smell it. If it smells like oil there no bore wash, if it smells like fuel........
19 February 2008, 05:27 PM
#114
Scooby Regular
Thread Starter
Join Date: Dec 2006
Location: essex
Posts: 492
Likes: 0
Received 0 Likes
on
0 Posts
i would like to ask every1 to stop posting in here please, i have asked the q's i wanted and sourced the info needed, the car will be waiting for the strip down at the tuners, untill the problem is found i will not be typing in here again,
thanks for every1 who replied....
thanks for every1 who replied....
07 April 2008, 06:27 PM
#115
Scooby Regular
Thread Starter
Join Date: Dec 2006
Location: essex
Posts: 492
Likes: 0
Received 0 Likes
on
0 Posts
as promised, i have news about the car at last,
te problem was a oil temp i fitted incorrectly causing the crank and bearings to wear, sadly i now have to sell the car as i dont have any funds whatso ever as it would cost me my relationship, i have promised to be engaged by the end of the year and basically the cost of the repair is way more than i can afford,
id like to thank area52autosport for all there work, and would always recommend them,.
i now have 12 days in sharm el sheikh to persway my soon to be fiance to hold off the engagment, however i know its not going to work,
anyway theres the answer to it,
thanks every one and maybe one day ill get a scoob again,
te problem was a oil temp i fitted incorrectly causing the crank and bearings to wear, sadly i now have to sell the car as i dont have any funds whatso ever as it would cost me my relationship, i have promised to be engaged by the end of the year and basically the cost of the repair is way more than i can afford,
id like to thank area52autosport for all there work, and would always recommend them,.
i now have 12 days in sharm el sheikh to persway my soon to be fiance to hold off the engagment, however i know its not going to work,
anyway theres the answer to it,
thanks every one and maybe one day ill get a scoob again,
07 April 2008, 07:43 PM
#118
Scooby Regular
Join Date: Jun 2006
Location: South West
Posts: 1,568
Likes: 0
Received 0 Likes
on
0 Posts
How the heck can an oil temp sensor cause the "crank and bearings to wear"? Even if its a mechanical guage you'd soon know if it was leaking all that oil as that would be all you could smell inside and outside the car.
Dont understand that and sounds like a "weak" reason for failure...
Dont understand that and sounds like a "weak" reason for failure...
07 April 2008, 07:52 PM
#120
Scooby Regular
Thread Starter
Join Date: Dec 2006
Location: essex
Posts: 492
Likes: 0
Received 0 Likes
on
0 Posts
sorry my fault,
i used the wrong tape around the sensor causing it to deterierate and very small parts of the tape went into the block and caused the bearing to wear and a sort of knock on effect to the rest of the engine, all within a couple hundred miles, doesn't explain the loss of oil before this was fitted but frankly im skint cant afford a second opinion etc etc
i used the wrong tape around the sensor causing it to deterierate and very small parts of the tape went into the block and caused the bearing to wear and a sort of knock on effect to the rest of the engine, all within a couple hundred miles, doesn't explain the loss of oil before this was fitted but frankly im skint cant afford a second opinion etc etc