Golf R engine blown

[silentbrown]

liner33 said:

lots of cars have throttle butterfly valves that stay open whilst the engine is running ie Nissan 370z and are not used to control engine speed

Not sure I get that - can you explain?

Nick1Point9's post here makes a lot of sense. https://www.pistonheads.com/gassing/topic.asp?h=0&...

(TL,DR : closed butterflies do increase engine braking a bit, but many other factors are in play)

[Mr2Mike]

Super Slo Mo said:

silentbrown said:

SMB said:

Not really, damage done in an instant, compression lost no braking

Can't remember the vid I was watching but basically engine braking is caused by the throttle butterfly being shut so the intake stroke of the engine has to work really hard. Any braking caused by the compression stroke is largely negated by the same air expanding during the power stroke, so a loss of compression gives no significant change to engine braking.

This is why diesels (no butterfly) need something like a Jake Brake.

Nice idea. Unfortunately it’s not really true.

If it were, the butterfly would create a vacuum on the intake which would pull the piston up on the compression stroke. Which is the opposite of the diesel theory.

Not much of the energy expended by the piston working against the vacuum in the inlet manifold is returned on compression because the inlet valve is closed. This means the piston is working against a pretty constant vacuum from the moment the inlet valve opens on the way down, but on the way up (with the inlet valve closed) the pressure will rise very quickly, so you get a net loss. You may have heard of "throttling losses"?

[Beanie]

Thread revival,

I promised an update,

My money that was MIA has found its way home.

All is well that ends well...

[silentbrown]

Beanie said:

All is well that ends well...

Bloody hell - A thread that hasn't died and left everyone wondering about the outcome!

OP. well done, and thanks for getting back - Is there any more to tell - did VW actually find out what had failed in your engine, or fess up to anything?

[soad]

Beanie said:

All is well that ends well...

[Beanie]

I'm still waiting the outcome of a 'Motor Trade Ombudsman' complaint about VW

I also took a complaint to the 'Financial Ombudsman' about the treatment of my insurance claim.

The insurance reviewed the case and evidence and guess what...

Sorry to those that were enjoying my outlay, I know some took great pleasure in it.

But I have to say, beyond all the abuse there were some top tips and suggestions, which ultimately payed off. For that, I am grateful, as it was comments on here which made me chase the insurance on several occasions and then take it further.

Cheers!

[xjay1337]

I know. Such conartists.

Replacing an engine you over revved! The cheek.

[mcg_]

Good news. Actually thought about this thread today or yesterday and wondered if there would ever be an update

[Spidersleg]

So the insurance paid you back for the engine and fitting?

[PurpleTurtle]

Nice one OP, pleased for you

[AyBee]

Well that's a result and a half What's it now being spent on

[Welshbeef]

Spidersleg said:

So the insurance paid you back for the engine and fitting?

HONESLTY that’s what I believed would have been he case from the off - drive a car by vault into a wall insurance pays you pay excess + premium hike or anything else.
I’d never considered the scenario pre the thread but good to see OP got it sorted + cash back before Xmas well played.


Also good sport for taking the banter from so many posters.

[Burwood]

Good news beanie but rather than titillate, again, why not set out what the result was. Are you suggesting your insurance company reimbursed you?

[Beanie]

Burwood said:

Good news beanie but rather than titillate, again, why not set out what the result was. Are you suggesting your insurance company reimbursed you?

Thought I made that quite obvious

[Burwood]

Who was the insurance company. Great endorsement

[andrewparker]

Beanie said:

Burwood said:

Good news beanie but rather than titillate, again, why not set out what the result was. Are you suggesting your insurance company reimbursed you?

Thought I made that quite obvious

You did.

And well done, perseverance paid off.

[helix402]

This could start a new trend! Tired old engine? Or just fancy a new one?

Simples, just rev it till it goes boom, your kind insurance company will pay for a new one. No need to worry about loss of no claims or increasing premiums.

(Note: this is all my attempt at a joke-I do not encourage any wise powerfully built company directors to break their super powerful engines on purpose and cost our super insurance companies lots of pennies or increase others future premiums).

Stay safe kids (inc powerfully built company directors) and don’t granny shift, not double clutching like you should.

[Beanie]

I see your point but where do you draw the line?

Same can be said for putting wrong fuel in

Or front ending a car on purpose, may aswel get the stone chips on the bonnet and the engine done at the same time?

That's why there are insurance investigators, to stop fraud.

I had nothing to gain from it

[TooMany2cvs]

helix402 said:

This could start a new trend! Tired old engine? Or just fancy a new one?

Simples, just rev it till it goes boom, your kind insurance company will pay for a new one. No need to worry about loss of no claims or increasing premiums.

If the insurer have paid, then it's certainly going to be counted as a "proper" at-fault claim - which is going to need declaring, just as if it was £9k of collision damage.

[essayer]

So I suppose, with a bit of persuading, the insurance company treated the over-rev as an 'accident' ?

A nice Christmas bonus for you