White smoke coming off the back of the manifold ( back of engine)

[Fletcher]

Hi guys.

When I first start the 172 up I have noticed a bit of White smoke coming off the manifold ( maybe something is leaking onto it) After a 5 min drive it stops doing this. It still drives the same, no loss of power and I have no faults on the dash.

Any ideas?

 

[Russ_16v]

Im guessing you havent noticed any fluid loss from anywhere mate?

Is it parked where any water can get on?

Does the smoke smell at all?

 

[Joe R26]

I'm sure oil makes White smoke if it's burnt outside the engine on something hot. But that would probably stink.

 

[Fletcher]

Im guessing you havent noticed any fluid loss from anywhere mate?

Is it parked where any water can get on?

Does the smoke smell at all?

All the oil levels and everything seem fine mate the smoke doesn't really smell of anything. And It's parked up the same as normal.

I'm sure oil makes White smoke if it's burnt outside the engine on something hot. But that would probably stink.

It may well be a small oil leak

I'll get it booked up with Rentech ASAP.

 

[Russ_16v]

oil will usually smoke white, but it also normally stinks, yeah id get it checked dude

 

[Fletcher]

oil will usually smoke white, but it also normally stinks, yeah id get it checked dude

Will do matey. I don't have to drive it until then, so fingers crossed it's a easy cheap fix!

 

[Russ_16v]

Im sure it will be mate, could always be voodoo doing it?

Have you pissed off any voodoo caymens lately?

 

[Joe R26]

From previous posts I've read I think the cam box can leak oil, i presume it could leak out the back on to the manifold but I really hope it's not that as I think it's s cam belt off job. I could be totally wrong. But they say if it's only a small leak and its from the cam box it's not worth doing until the next cam belt change.

Seems these motors have problems with keeping the oil where it should be lol.

Hopefully it's something minor though.

 

[Fletcher]

Im sure it will be mate, could always be voodoo doing it?

Have you pissed off any voodoo caymens lately?

Not that I know of

From previous posts I've read I think the cam box can leak oil, i presume it could leak out the back on to the manifold but I really hope it's not that as I think it's s cam belt off job. I could be totally wrong. But they say if it's only a small leak and its from the cam box it's not worth doing until the next cam belt change.

Seems these motors have problems with keeping the oil where it should be lol.

Hopefully it's something minor though.

Well I was planning on changing the cam belt again next spring anyway. If it is this, I can get that and a set of 421s quicker

 

[Russ_16v]

Not that I know of




Well I was planning on changing the cam belt again next spring anyway. If it is this, I can get that and a set of 421s and itb's quicker

EFA TBFH

 

[Fletcher]

^^^

 

[TimR26]

Sounds like it's dying TBQFH

I suppose it's too late to bury it under your extension now :rasp:

 

[Mike_RS]

Check the rockor cover seal specifically the head of the bolts, its quite common for oil to seap through the heads and run down onto the manifold which will cause smoking.. If its the seal gone im afraid its a new cam belt and auxbelt just to reseal it.. If its leaking at the bolt heads you can just remove the leaking bolt and add abit of sealent under the head of the bolt.

 

[Fletcher]

Sounds like it's dying TBQFH

I suppose it's too late to bury it under your extension now :rasp:

Haha

Check the rockor cover seal specifically the head of the bolts, its quite common for oil to seap through the heads and run down onto the manifold which will cause smoking.. If its the seal gone im afraid its a new cam belt and auxbelt just to reseal it.. If its leaking at the bolt heads you can just remove the leaking bolt and add abit of sealent under the head of the bolt.

Will do. Thanks Mike.

 

[TimR26]

I had that done to my 172 so I know what to do if you want to give it a go.

 

[Fletcher]

I had that done to my 172 so I know what to do if you want to give it a go.

That would would be great mate

I took it out for a short blast earlier.. I checked the engine once warm, and the have no smoke at all :S

 

[Fletcher]

Well I've had no white smoke now the last few days. Hopefully it was just a bit of excess oil after giving it hell at Donington park all day.

 

[Cupman29]

Might be the breather line to the inlet leaking. I always have a dribble from mine but am fitting a catch tank soon so will worry about I then.

 

[Fletcher]

Might be the breather line to the inlet leaking. I always have a dribble from mine but am fitting a catch tank soon so will worry about I then.

You may well be right. If the weather is nice I'll take it for a long drive tomorrow, and have a good look once I get back home.