Exhaust replacement

[egor617]

Bugger exhaust has just snapped off behind the back box, is there anywhere i can get a replacement mild steel one instead of stainless?

[Simon Jones]

Might be worth checking if it can be repaired under warranty. Most seem to come with lifetime guarantees. Otherwise, 3 or 4 piece ones can be picked up from suppliers on ebay for about £150. If you want a 2nd hand 3 piece one, I can point you in the right direction.

[egor617]

It's not under warranty , as far as i know it's the original exhaust from 1995 so it hasn't done bad.
I think i need the 4 piece one as it has the winter kit fitted that warms the engine up quicker.

[Jaws]

OK. Your 16 year old exhaust has failed.

E bay will give you what you want but it seems pretty crazy not to go for a stainless replacement. There's not much in it at the end of the day!

[egor617]

I was just thinking of keeping the insurance low.
I'm pretty impressed how much of the bongo is still working after 16 years use, although it goes in the end of nov to have rust cut out and think next job is to replace all coolling system, radiator,hoses, waterpump as a precaution.

[Simon Jones]

Sorry, I misunderstood you: I thought you already had a stainless exhaust which was why you were looking to get a steel one. As there could be insurance implications for changing to stainless, so may be worth checking with your insurers first to see what they say. If you do go for a complete replacement system, may be worth doing away with the winter kit as it can cause problems if it fails in the closed position.

[Driver+Passengers]

It's not under warranty , as far as i know it's the original exhaust from 1995 so it hasn't done bad.
I think i need the 4 piece one as it has the winter kit fitted that warms the engine up quicker.

Have you seen the quality of the welding?! Plus, no salt!



You won't find that on eBay! That one must be original, too.

Also, watch! If you've blanked your EGR you should disconnect the vacuum tube and solenoid/valve. I'm assuming this would be like a 'boot up the exhaust'.

[egor617]

What do i have to remove to get rid of the winter kit? I understand its a valve that directs the exhaust gasses to the engine to warm it up quicker?

[scanner]

Bugger exhaust has just snapped off behind the back box, is there anywhere i can get a replacement mild steel one instead of stainless?

Take my advice - It isn't worth it.

[Driver+Passengers]

What do i have to remove to get rid of the winter kit? I understand its a valve that directs the exhaust gasses to the engine to warm it up quicker?

My understanding is that the exhaust valve closes to increase back pressure (or block off the exhaust) diverting more exhaust gasses towards the EGR valve, and from there into the air intake. (See FAQ on EGR).

The Engine Warm Up switch, as well as operating the exhaust baffle will effect a fast idle and I think I read somewhere that it alters the coolant flow through the block/head - anybody/Steve?

it can cause problems if it fails in the closed position

It would, but I'd be surprised if one would ever fail closed (or indeed accidentally actuated) if you were to first remove the vacuum hose and disconnect the solenoid.

The Winter Kit consists of more than the exhaust baffle - 2 starter batteries, heavy duty starter (which is worth doing away with as you can't service the contacts easily - keep it until it goes, though.) There's something else that down behind the passenger door step... someone has photos linked on here, I'm sure.

I'd never worked on an exhaust until yesterday, but I you have wheel ramps to raise an end I'd say it's an easy enough job. Worth preparing the day before with some spray or another. I'd also never seen exhaust gasket rings.

(for the benefit of those who hadn't either).

I also had to do some work to the front hanger that is attached to the automatic transmission casing. The original bolt was long and threaded only at the end. The new hanger I got with mine would have closed flat to a quarter of an inch. the original clamp was of a slightly wider diameter and I had to cut a strip off the new bracket and use it as an insert for the old one. (No photo, sorry.)

[Jaws]

Bugger exhaust has just snapped off behind the back box, is there anywhere i can get a replacement mild steel one instead of stainless?

Take my advice - It isn't worth it.

Not quite sure what everyone else is saying here. My point was just that if you need a new exhaust you might as well get a stainless steel one because it works out pretty much the same price as a 'standard' mild steel one.

I guess this is because you can have a stainless exhaust hand crafted while you wait by a variety of suppliers, but to source an original Mazda Bongo mild steel exhaust in a country it was never sold in is expensive.

No brainer?

[Driver+Passengers]

Bugger exhaust has just snapped off behind the back box, is there anywhere i can get a replacement mild steel one instead of stainless?

Take my advice - It isn't worth it.

Not quite sure what everyone else is saying here. My point was just that if you need a new exhaust you might as well get a stainless steel one because it works out pretty much the same price as a 'standard' mild steel one.

I guess this is because you can have a stainless exhaust hand crafted while you wait by a variety of suppliers, but to source an original Mazda Bongo mild steel exhaust in a country it was never sold in is expensive.

No brainer?

Possible insurance implications would push the total cost of ownership up.

[mikexgough]

I declared mine to my insurance and not an increase in premium for me.....but could be dependent on the Insurance company, for me Stainless replacement is a no brainer, fit and forget .......... many older vehicle owners are opting for Stainless systems these days, many I deal with go stainless as their cars are laid up for months on end and wanted to start,run and be 100% when the owner decides to take them out ion a run.....

[Simon Jones]

I wouldn't worry too much about not being able to source a genuine Mazda exhaust. The vast majority of fast fit centres only stock aftermarket parts from manufacturers like Bossal and TI. A fairly generic mild steel exhaust should give at least 5 to 10 years of service. It will probably rust away a lot slower than rear wheel arches.

[mikexgough]

I wouldn't worry too much about not being able to source a genuine Mazda exhaust. The vast majority of fast fit centres only stock aftermarket parts from manufacturers like Bossal and TI. A fairly generic mild steel exhaust should give at least 5 to 10 years of service. It will probably rust away a lot slower than rear wheel arches.

At the end of the day..... yer pays yer money.... you take your choice.......it isn't if you can't get Mazda exhausts off the shelf.... plenty of info out there on the forum and beyond to make an informed choice...