"A nasty garage man put a ball bearing in the engine"

"A nasty garage man put a ball bearing in the engine"

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Discussion

Tango13

8,451 posts

177 months

Wednesday 14th March 2012
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Fortunatly not my engine.

johnpeat

5,328 posts

266 months

Wednesday 14th March 2012
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I think the fact the head and block are clearly from different engines is a pretty clear indicator of the bullst level here - let alone the crazy price smile

sebhaque

6,404 posts

182 months

Wednesday 14th March 2012
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That piston pic just reminded me of the breast rash pic.... NSFW and don't google it!

cahami

1,248 posts

207 months

Wednesday 14th March 2012
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johnpeat said:
I think the fact the head and block are clearly from different engines is a pretty clear indicator of the bullst level here - let alone the crazy price smile
What am i missing here? they look as though they would go together like
well things that go together what is it that makes you think they are from different engines?

RWD cossie wil

4,319 posts

174 months

Wednesday 14th March 2012
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My friend took his car for a check over at a well known Cosworth "specialist" in the Midlands... Bearing in mind the car was running perfectly before being dropped off, it was returned with a death rattle and the "specialist" saying that he was only just starting the power runs when it started rattling, and that he advised the car not to be driven, and that it was most likely the bottom end bearings. He could of course, do a very good price on a rebuild as the car was already there...

My friend declined, and got the car recovered to a mates garage, who removed the engine, and took the head off, and removed the sump. The engine was perfect..... On removing the inlet manifold, sitting ontop of one of the #1 inlet valves, was the inner race of a bearing assembly, which AMAZINGLY enough, was just too big to drop into the cylinder via the valves, but small enough to rattle around enough to make a horrible noise madrolleyes.. Bearing in mind, that to get into the engine, this item would have had to go through the air filter, then through the core of an intercooler!! Now, you tell me how that got there, the engine & ancillerys were thoroughly stripped, and nothing was wrong with any part of that car, and the bearing race was not part of the engine!

furious

There are sly bds everywhere, sadly proving it is the impossible thing...

thinfourth2

32,414 posts

205 months

Wednesday 14th March 2012
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cahami said:
johnpeat said:
I think the fact the head and block are clearly from different engines is a pretty clear indicator of the bullst level here - let alone the crazy price smile
What am i missing here? they look as though they would go together like
well things that go together what is it that makes you think they are from different engines?
the head and block look like a matched pair to me

just because the block and head have different ports doesn't mean they don't go together as often the gasket has small ports to restrict flow where as the head and block have big holes to allow for easier core when sand casting

Scuffers

20,887 posts

275 months

Wednesday 14th March 2012
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thinfourth2 said:
the head and block look like a matched pair to me

just because the block and head have different ports doesn't mean they don't go together as often the gasket has small ports to restrict flow where as the head and block have big holes to allow for easier core when sand casting
yup, they are pics of a rover dismal engine....

pretty shoddy trick, seen this a few times in the distant past, can't believe people still do this st.

Fire99

9,844 posts

230 months

Wednesday 14th March 2012
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Scuffers said:
yup, they are pics of a rover dismal engine....

pretty shoddy trick, seen this a few times in the distant past, can't believe people still do this st.
It's a BMW engine smile M47

Monkeylegend

26,465 posts

232 months

Wednesday 14th March 2012
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Think we have just found Moronics next car.

guru_1071

2,768 posts

235 months

Wednesday 14th March 2012
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heres a couple of pictures of a genuine 1960's 'mowog' alloy cross flow eight port head off a customers race mini.


this had just been 'rebuilt' by an engine builder, who left the spring shims out from under the valve springs, so all the spring preloads where wrong. once the motor really filled its lungs up and started to rev (past 8000rpm) it dropped a valve........






you can see the stem of the valve rammed up through the guide.




due to the rarity of this head, it was welded up, ground out, rewelded, ground out until the chamber came back, new seats where fitted and has done another three seasons racing.....

you cant do that with a cast iron head!


Hugo a Gogo

23,378 posts

234 months

Thursday 15th March 2012
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guru_1071 said:
I'm confused by the sign on the switch behind, 'do not switch on off!!!!'

Mr2Mike

20,143 posts

256 months

Thursday 15th March 2012
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No pics sadly, but a friend had a valve drop on a Honda B16 engine a couple of years ago. Not only did it destroy the head and piston of the cylinder that dropped the valve, a chunk of smashed up valve managed to make it all the way back into the plenum and then back down into another cylinder and knackered that as well.

RobCrezz

7,892 posts

209 months

Thursday 15th March 2012
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A ball bearing? Really?

They look like typical detonation pits, I would guess that the injector for that cylinder was giving up and running very very very lean.

calibrax

4,788 posts

212 months

Thursday 15th March 2012
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RobCrezz said:
A ball bearing? Really?

They look like typical detonation pits, I would guess that the injector for that cylinder was giving up and running very very very lean.
Diesels are designed to run on detonation... so even running very lean, you wouldn't get pits like that.

RobCrezz

7,892 posts

209 months

Thursday 15th March 2012
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calibrax said:
RobCrezz said:
A ball bearing? Really?

They look like typical detonation pits, I would guess that the injector for that cylinder was giving up and running very very very lean.
Diesels are designed to run on detonation... so even running very lean, you wouldn't get pits like that.
Oops, I should read it better. Didnt notice it was diesel.

Tophatron

425 posts

222 months

Thursday 15th March 2012
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Someone suggested that it could be a bearing from a knackered turbo being sucked through. Is that a possibility?

RobCrezz

7,892 posts

209 months

Thursday 15th March 2012
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Tophatron said:
Someone suggested that it could be a bearing from a knackered turbo being sucked through. Is that a possibility?
Very unlikely, a turbo of that age was most likely journal bearing not ball bearing. Plus I havent ever heard of ball bearings exiting turbos.

Megaflow

9,438 posts

226 months

Thursday 15th March 2012
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Tophatron said:
Someone suggested that it could be a bearing from a knackered turbo being sucked through. Is that a possibility?
Highly unlikely. Most turbos use plain bearings, hence the need for an oil connection. Ball bearing turbos are for very high performance applications.

Mr2Mike

20,143 posts

256 months

Thursday 15th March 2012
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RobCrezz said:
A ball bearing? Really?

They look like typical detonation pits, I would guess that the injector for that cylinder was giving up and running very very very lean.
It doesn't look anything like detonation damage, not even close.

calibrax said:
Diesels are designed to run on detonation...
Compression ignition is not the same as detonation. The fuel in a diesel is burnt in a controlled manner as it is injected.

Edited by Mr2Mike on Thursday 15th March 12:12

Krikkit

26,541 posts

182 months

Thursday 15th March 2012
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Just wanted to follow this up with some pics of a really ruined engine:





Custom 1400cc sprint engine buzzed on a downshift. Ouch.