13 replies to this topic

[DanFuke]

Hey, i have an 85 mayfair with a stage one kit
At the weekend i went over a speed bump at about 10mph and my exhaust fell off.
Today it did the same after driving 300 miles ok...

It comes apart where it joins the manifold.
I reattached it and did the bolts back up.

Any suggestions?

[ryanfisher67]

get a new clamp maybe ? also make sure its pushed on far enough to clamp on properly

[Brams96]

Pull it apart & clean it up around both pipe ends inside & out. Use some exhaust sealant before putting them back together & use a new clamp (use the right size for your exhaust). Also make sure you have the bracket attaching the exhaust to the bottom of the gearbox LINK. You might need to slacken off the rear brackets to do the front one then tighten them back up when finished.

Edited by Brams96, 07 June 2012 - 04:39 PM.

[OhDear]

cheak engine steady bushes to much movement? .

[SA MINI]

yes make sure the pipes fit all the way in use some exhaust paste fit the clamps tight & the manifold retaining bracket.
run the engine then tighten the clamps a tiny bit more when warm

[DanFuke]

Cheers for all.your help guys.
I will take all your advise on board and repair it at the weekend.

How can I tell if its a rc40 (the decent stage one kit)?

If not I'm thinking about replacing it all lol

[cal844]

erm... my exhaust has about half an inch of a join, with no gearbox to exhaust bracket.

[DanFuke]

I picked up some new clamps from kwick fit and drove home. Started to install them but couldn't get them to fit.

I decided to bite the bullet and booked an appointment for them to fit the new clamps.

I pull off my drive way, get half way down the road and the whole exhaust falls off.

It has now worn through the rubber mounts at the back.

Don't you just lovery minis?

[Joseph-C]

I picked up some new clamps from kwick fit and drove home. Started to install them but couldn't get them to fit.

I decided to bite the bullet and booked an appointment for them to fit the new clamps.

I pull off my drive way, get half way down the road and the whole exhaust falls off.

It has now worn through the rubber mounts at the back.

Don't you just lovery minis?

the exact same thing happened to me
I put it back on at the side of the road using some new clamps id bought and loads of exhaust paste and it hasn't happened since.
make sure your engine steadies are in good condition (rock the engine back and forth, there should be no real movement) and that you have all the correct clamps and obviously replace the rubber mount.

[bmcecosse]

Obviously you haven't fitted it correctly if it falls off even once - never mind repeatedly. Hope you have deep pockets to pay Kwak Fut to do this simple job for you..........

[DanFuke]

Obviously you haven't fitted it correctly if it falls off even once - never mind repeatedly. Hope you have deep pockets to pay Kwak Fut to do this simple job for you..........

I believe its because it gets caught on speed bumps....I'm sure the AA guy would have connected it properly.

Oh they were only going to charge £20

[mini-luke]

How low is your car?

[bmcecosse]

As above - simple answer - raise the car!

[Cooperman]

1. The pipe must have sufficient engagement length onto the manifold. A minimum of 1.5"
2. The clamp must 'bite' onto the outside diameter and the outside diameter must have two slots to allow it to bite onto the inner diameter. Use a thin shim of steel necessary.
3. There must be a support bracket from the manifold to the gearbox casing
4. There must be suffiicient rear mountings to prevent the system from being knocked backwards if it hits the ground.
5. Exhaust sealant paste does nothing to secure the exhaust.
6. If the car is lowered raise it back to standard ride height and gain both clearance and better road-holding.