LIDDO

Can find any posts on this, but I bet there is some, but......................

Im getting a TSL Decat soon, and Im thinking of doing this myself. I've heard of seized nuts though Has anyone ever done one on a MY99 Classic, or any classic I suppose. I also believe getting the Turbo heatsheild off maybe a pain!

Can anyone shed some light?? Im half decent with a spanner honest!!!

TonyFlow

Not too bad - just use plenty of penetrating (oo-err) spray and you should be OK!

Heat shield nuts are more fiddly than difficult!

LIDDO

Great! I think I'll have a go. Sounds easy

rossyboy

iTrader: (8)

It took a mechanic over 3 hours to do my MY94 with a four poster ramp, a few shearing bolts and a lot swearing I believe, though I wasnt there Might be better on yours being a '99.

LIDDO

DOH! Well, I'll have a go, if they dont come off, I'll take it to a friendly neighbourhood mechanic, and let HIM loose his knuckles

hades

Penetrating oil, ideally whilst things are still hot, is the best way. Getting the intercooler off while things are still hot is easy. Getting the heat shield off to expose the turbo studs without burning your hands is the "fun" part Full exhaust change in about 2 1/4 hours work on my own in my garage with ramps last time I did one - always managed it in an evening after work, anyway. Admittedly that's on a bugeye, but the process is extremely similar.

pauld37

Doing mine tomorrow too looking forward to it

fast_cat

iTrader: (1)

Good idea to 'wrap' the pipe as well...

Also you'll probably need to modify the heat shield when you put it back on, coz the new downpipe will have a wider neck. I cut mine in half and secured it with just 3 bolts.

FC

richie rich

when un doing the two top nuts/ bults, might be wise to use some sort of leaver, i.e a pole over the rachet or spanner, as this will give more lever,and less jerk of witch couses snapped bolts, plus save your nuckles from skin damage?

pauld37

Have heard about wrap, what is this for? I know for keeping heat in, but why?

Graz

Because you don't want the heat radiating into the engine bay, heating up the intercooler and everything else, better the heat gets blown out of the exhaust.

It's also supposed to increase the pops and bangs you get with full decat as the downpipe will be nice an hot inside to ignite any unburnt fuel

pauld37

I like the sound of that

LIDDO

Me too Cant wait! My mates pops and bangs without the tape, so gawd knows how much better its gonna be

pauld37

Liddo, where did you get your wrap from?

LIDDO

Paul, I aint got it yet, but if I do, I'll PM ya and tell ya

chrome

www.agriemach.com offer a nice fat discount if you mention SN

LIDDO

Cheers Chrome, Bookmarked the page! Its only £26 anyway


http://www.agriemach.com/product_inf...roducts_id=363

LIDDO

Actually, now many feet will we need??? Surely only 15ft at £8.75

http://www.agriemach.com/product_inf...roducts_id=694

Grand!

pauld37

Ooo I'll try there too

pauld37

Gone for the 1" x 25ft and 5 ties, £25, sorted

Graz

Might be worth getting the heat proof paint and sprying it as well. Apparently the wrap can soak up a lot of water otherwise. Okay if you don't mind a load of steam coming out of your bonnet for the first few miles of a trip

LIDDO

Reeto! Sounds good to me! Wrap and Paint it is then

pauld37

Bloody hell more expense

pauld37

'Kin 'ell, who said this was easy???? Did this yesterday, went round a mates who has a pit in their garage, not possible on ramps surely? Lost count of the amount of bolts holding the heat shields on, then had to remove the intercooler to get the sheilds out.
The downpipe itself came out easy, but because the pipe I was putting in was an openneck one the shields wouldn't fit it so my mate cut and shut the shields to suit.
Took around 5 hours to do

TonyFlow

Will be easier next time - I stick the DP back on when MOT time comes round - on a trolley jack, It takes me about 1.5 hrs (and that aint really pushing it!)

hades

I've done two exhaust swaps on ramps on consecutive evenings within the last month, so I'd say it's possible. Admittedly, short people would struggle to reach into the engine bay from ramps, and it doesn't give a lot of room at the back of the car (but there's only rubber hangers on the backbox.)

Heatshield - yeah, it does need a bit of chopping, and the bolt down the bottom nearest the osf wheel is a bit irritating to get at. However, nothing you shouldn't expect wih car mechanics.

Easy is all relative. Try chaning the up-pipe, you'll think the downpipe is easy then!

pauld37

Not doing that, will put the centre section back on for MOT day

pauld37

Did that, piece of p1ss