newbie question - engine bay

[g-boy]

saw a cerb speed six engine today. sounded fine at 27k miles. smooth, fairly quiet and not tappety at all.

however, I did see a fair amount of silver material, sort of like foil, for insulation perhaps? towards the back of the engine bay (near windscreen)

is this supposed to be there and what is it for?

thanks - be nice i'm a newbie to S6's

[vyt]

That is the heat shield, gets mighty hot under the bonnet. I have never looked under the bonnet of an S6 Cerb but my T350 has the heat shield at the back of the engine bay and on the left wheel arch inner bulkhead to shield the body from the hot exhausts.

[justinbaker]

[Far Eastender]

The heatshield should be visible from an area that starts roughly under the battery on the paggesnger side, to a similar location on the drivers side.

Mine has got so hot that it's peeled away on the passenger side and has to be replaced.

[g-boy]

thanks all.

before i went on a test drive the delaer recharged the battery and forgot to replace the piece that covers the rear of the engine bay (so you could still see the heat shield when the bonnet was down)

when driving you could see quite clearly all the heat escaping through this gap just in front of the windscreen. has anyone thought to make that particular piece meshed so heat could espcape more freely? i intend to use the cerb in urban environments and would look for improved ways of engine cooling.

also, i was quite perturbed to see that six cylinders or eight, the cerb engine still produces lots of heat. i kind of pressumed that the S6 would produce less heat than a V8...

[tail slide]

justinbaker said:

Excellent pic.

Might just check all my shields are still in place..!

[yzf1070]

justinbaker said:

If I am not too mistaken that is an AL Melling AJP6 engine on the test bed. Notice that it does not have a crank pulsation damper and the lower front caseing is slightly different to the Speed 6.

[whitey]

see my thread here for the damage the heat causes to early cars without the heatshields.

www.pistonheads.com/gassing/topic.asp?h=0&t=282225

Oh and by the way, I decided to not sell it, there is nothing else I want to drive!

[tail slide]

whitey said:

see my thread here for the damage the heat causes to early cars without the heatshields.

www.pistonheads.com/gassing/topic.asp?h=0&t=282225

Oh and by the way, I decided to not sell it, there is nothing else I want to drive!

Thanks for that - I'll maybe add de-cat pipes to my shopping list next year, useful to keep heat to a minimum even with the heatshields there.

[Daftlad]

tail slide said:

whitey said:

see my thread here for the damage the heat causes to early cars without the heatshields.

www.pistonheads.com/gassing/topic.asp?h=0&t=282225

Oh and by the way, I decided to not sell it, there is nothing else I want to drive!

Thanks for that - I'll maybe add de-cat pipes to my shopping list next year, useful to keep heat to a minimum even with the heatshields there.

Paul, if you're running standard bore exhaust I have I set of decat pipes you coud have (FOC). Let me know and I'll bring them to Harewood.

Edited by Daftlad on Sunday 20th August 06:37

[Daftlad]

yzf1070 said:

justinbaker said:

If I am not too mistaken that is an AL Melling AJP6 engine on the test bed. Notice that it does not have a crank pulsation damper and the lower front caseing is slightly different to the Speed 6.

Did well to get up to that temperature in the 15 minutes before it failed.

Maybe it let go because it wasn't warmed up properly

[tail slide]

Daftlad said:

Paul, if you're running standard bore exhaust I have I set of decat pipes you coud have (FOC). Let me know and I'll bring them to Harewood.

That's a very helpful offer, yes please John! I must give you something for them tho'. The T went well at Goodwood yesterday, 96 secs which was fastest by 4 secs, but for the TVR handicap needed 5 secs

[Daftlad]

tail slide said:

Daftlad said:

Paul, if you're running standard bore exhaust I have I set of decat pipes you coud have (FOC). Let me know and I'll bring them to Harewood.

That's a very helpful offer, yes please John! I must give you something for them tho'. The T went well at Goodwood yesterday, 96 secs which was fastest by 4 secs, but for the TVR handicap needed 5 secs

Paul,
I love that system. It appears to favour heavily modified cars....not sure if that was the intent. Often wonder if the the MSA have approved it.

Now then...price of two decat pipes. A beer and providing some space in my garage.

If however you think they are too cheap, you could let me have a few seconds at Harewood

Cheers
John

[tail slide]

[Daftlad]

See you Sunday next. Decats in tow..

[johnbear]

If your serious about that 27K Speed Six, I'd check it's had a rebuild or knock £5K off the price!

[itsadeal]

yzf1070 said:

justinbaker said:

If I am not too mistaken that is an AL Melling AJP6 engine on the test bed. Notice that it does not have a crank pulsation damper and the lower front caseing is slightly different to the Speed 6.

That is a good pic! Ri man, i thought the counter weight on the front was very much needed? obviously not!

[yzf1070]

It is with the engines having a cast crank (which just about all of the S6's have), the AJP6 ran a precisely balanced bottom end using a billet steel crank. A few S6 cars out there have a billet crank in them and it has been suggested that these have come from the stripped down AJP6 engines originally supplied to TVR for bench testing.... aka the photo above.

[itsadeal]

yzf1070 said:

It is with the engines having a cast crank (which just about all of the S6's have), the AJP6 ran a precisely balanced bottom end using a billet steel crank. A few S6 cars out there have a billet crank in them and it has been suggested that these have come from the stripped down AJP6 engines originally supplied to TVR for bench testing.... aka the photo above.

yr a mine of information!

[yzf1070]

In fairness it's all been said before by other folk on here. PH in general provides for a wealth of good info and the majority of members are willing to share it which is great for all of us.

G