Silver C70 T5 - Manual - 400BHP

[lance]

Nice one Dave a good result well deserved :-)

[partsforvolvos.com]

nice one mate, well done.

[Wobbly Dave]

When pushing an engine this hard I know that reliability is going to be compromised & I accept that. Coming back last night from Brum I "tickled" the engine a couple of times. Sods law just as I was getting back into Telford itself, when I heard a noise. It was late & the exhaust is noisy so I left it without really looking into the problem. Today I turned it over & discovered exhaust manifold has a blowing noise. Car sounds like a tractor. I've noticed there is a small drop in the coolant level.

Either I have a cracked manifold or its blown out the gasket. I hope its nothing worse.

However there is not a cat in hell's chance of making York Raceway - so I am to say the least extremely miffed. So from the elation of the dyno runs last week to the pits of despair. Fluids will need to be drained down, turbo off (cos there's no room down the back) - manifold off & just pray that it is only the gasket that's gone. I don't know if you'd get a blowing noise from a cracked head but lets not even go there.

[partsforvolvos.com]

I've never heard of it dave so fingers crossed gasket only.

[Wobbly Dave]

I've ordered a new gasket from MJA who built the engine.

[V70 Graham]

Fingers crossed it's only a gasket Dave and your quickly sorted.

[Wobbly Dave]

I have tried with help from my NDN mechanic friend to nip the bolts up. It made the blow less significant but its not right & there's no point in pushing it.

[V70 Graham]

Just a shame that as it's so tight in the engine bay that you have to remove a fair bit to get to anything.

[Wobbly Dave]

I have my suspicions but I think the sequence of events is as follows. On Wednesday evening I change 2 of the hanger rubbers for the exhaust in an attempt to stop it clunking around.
Smiffy gave me the idea & I ran with it.

They weren't the best fit, but they did stop the exhaust moving about laterally and vertically. However I noticed today that one had fallen off the hanger underneath. its down to the material. I should have strapped them in place, as unlike the rubber ones they don't stretch (but that's the whole point).
The extra weight of the exhaust & all that jazz may have just been the straw that broke the camels back. Well there's no point grumbling about it now - what's done is done.

Perhaps I should have left it as was. just sometimes need to stop messin' - FFS.

[stribo]

Hopefully the gasket will sort it, though not sure why it would lose water, unless there was still some air in the system when you put it back together, and it's now found its way out.

[Wobbly Dave]

I will only know for sure once I've got it apart & it's chucking it down outside.

[Dangerous Dave]

Fingers crossed it's an easy fix Dave

I will only know for sure once I've got it apart & it's chucking it down outside.

Yeah, I wanted to get on with mine today (day off), but no chance of that

[Jamest5r]

Is it a 1 piece gasket Dave or multi?

[Wobbly Dave]

Its this single 3 ply steel gasket.

[Wobbly Dave]

Could be that the manifold has warped or lifted.

[Jamest5r]

Could be that the manifold has warped or lifted.

Can't see.why your turbo not generating that much heat in reality to others

[claymore]

Can't see.why your turbo not generating that much heat in reality to others

Mine generated enough heat to boil the brake and clutch fluid and melted the plastic pipe going into the servo.

[Jamest5r]

Mine generated enough heat to boil the brake and clutch fluid and melted the plastic pipe going into the servo.

Fair enough I'll stand corrected

[graemewelch]

I will only know for sure once I've got it apart & it's chucking it down outside.

Put your gazibo up youll be ok

[graemewelch]

Ive got a cad drawing for the inlet gasket. I was going to get some copper ones water jet cut

I can forward you the dxf file if you want it