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[daveball]

Can anyone help please with the following.  Replaced the 3 hoses to the HBV  this week, and when reassembling found a pipe that doesn't seem to have a home. Its made of softish plastic( not rubber), doesn't seem to have any clip marks on it and comes up in the area where the HBV is. It appears to come from the auto box area. Its totally free floating, and I can't see anywhere where it can go to. If I start the car it neither seems to blow or suck. I thought that I may have knocked it off from some fitting while messing about behind the engine.  Is it a breather for the auto or a drain for something. ?  Help!!!

2 more questions:-

The bolts fastening the lower inlet flange (plastic) to the heads seem to have sealant on them as some seem to go into water passages, but the Haynes book doesn't mention this. What sealant is advised for replacing them.

What sealant can be used for the oil cooler to block seal, the Haynes manual mentions some vauxhall stuff but my manual is old and the stuff will probably not be available.

Regards Dave

[albitz]

Sounds very much like the gearbox overflow pipe.
I think it runs up  to that area to prevent ingress of water.
Sorry ,dont know about the sealant questions.

[ffcgary1]

Oil cooler plate sealant is the grey stuff.
Pipe sound like the auto box breather and is not connected to anything. make sure it is not squashed or crimped.

 The plastic intermediate plate  does not have a sealant on it just some orange gaskets that should be replaced.

[feeutfo]

the grey stuff, Gary Snail is refering to,(sorry Gary, couldnt resist) is available from vx parts dept. Dont bother using anything else. Make sure surfaces are clear of gaskit, oil, and water.

[feeutfo]

ps get a trade club card from Autobahnstormers first if you have the time, it will soften the blow, for sealent and orange gaskits. 20 litres of semi sinth for £33 at the mo. Hope helps.

[daveball]

Thanks for replies. Its the bolts fastening the lower flange that had some sealant on them not the lower flange itself. I thinks two bolts at least go into water passages and probably need sealing, though thread tightness and some corrosion would probably do.

Dave

[Darth Loo-knee]

Can anyone help please with the following.  Replaced the 3 hoses to the HBV  this week, and when reassembling found a pipe that doesn't seem to have a home. Its made of softish plastic( not rubber), doesn't seem to have any clip marks on it and comes up in the area where the HBV is. It appears to come from the auto box area. Its totally free floating, and I can't see anywhere where it can go to. If I start the car it neither seems to blow or suck. I thought that I may have knocked it off from some fitting while messing about behind the engine.  Is it a breather for the auto or a drain for something. ?  Help!!!

2 more questions:-

The bolts fastening the lower inlet flange (plastic) to the heads seem to have sealant on them as some seem to go into water passages, but the Haynes book doesn't mention this. What sealant is advised for replacing them.

What sealant can be used for the oil cooler to block seal, the Haynes manual mentions some vauxhall stuff but my manual is old and the stuff will probably not be available.

Regards Dave

Like already said that pipe your talking about is the gearbox breather pipe and does not go to anything.
Oil Cooler Plate Sealer Part Number is = 93165267
As for the sealer on the bottom inlet flange there isn't any sealer on them mate
 

[daveball]

Yep I know the flange doesn't have sealer, but the bolts holding it down do have some goo on them cos at least two of them seem to go into water passages. Whats this sealant or a suitable one?

Dave

[MutantCav]

Dave, the bolts holding the lower inlet on may well have gunge on them...but they arent meant to neither is the sealant needed...but sounds like someone might have tried bodging the bolts rather than replacing them???

[feeutfo]

Thanks for replies. Its the bolts fastening the lower flange that had some sealant on them not the lower flange itself. I thinks two bolts at least go into water passages and probably need sealing, though thread tightness and some corrosion would probably do.

Dave

No water passages there, could it be that water from the oil cooler plate has leaked  into the bolt holes? And you are seeing water in there? Just trying to understand what yous seeing. Can assure you the bolts that hold the plastic lower inlet to the block do not do anything more than hold it in place. They dont seal any water ways or anything.
Ignore the sealent on the bolts if i where you, somebody probably just spilt something.
Hope helps.  

[psnimv6]

Yep I know the flange doesn't have sealer, but the bolts holding it down do have some goo on them cos at least two of them seem to go into water passages. Whats this sealant or a suitable one?

Dave

i think it is lock tight of some kind if it is the blue like glue on the theads that i also have on mine

[Bionic]

Eassy peasy, it is indeed the Auto gearbox breather pipe so do not obstruct it and make sure that it is facing downwards level with the firewall top. It is not meant to have any attachment to it, it is just an open pipe.
Ray

[daveball]

Thanks gents for all the replies. The reason I'm agonising over this "sealant on bolts business is that there is indeed some blue goo on some of the bolts wjhich could be a Loctite type sealer,  they were stiff to remove, and as soon as I loosened one of the rear ones, water oozed from around it.  I don't suppose there would be any harm in using some on replacement. I can't see from heights and angles that it could come from anywhere else, other than the bolt hole in the head. There is indeed what looks like a water film around the front oil pipe union and either from the oil cooler at the front or from the thermostat housing, thet doesn't dry out,( I've left as much water in the cooling system as possible.).  

I'm just at this moment trying to decide if I want to tackle the oil cooler sealing. I'm getting on in years and creeping around under the car is no fun anymore.  Do the oil pipes have to be released from the filter end to remove and reseal the unions and oil filter plate? Isn't there enough give in the pipes to spring out of the way?  

 How difficult is releasing the oil pipes from filter end. And reading that oil filters fail internally, what's the chance of me damaging the actual filter and causing it to fail by removal stresses, is it worth replacing at this dismantle stage? I've no idea of the cost.

Do I put it back together and go to a garage? Help my decision process lads!

Dave  

[daveball]

Sorry not concentrating for filter read cooler!!!

Dave

[Matchless]

The bolts fastening the inlet manifold to heads do indeed have locktite on them.
You can use a 'soft' loctite grade on them such as nut lock but in most cases there is sufficient remaining on the threads to re-use without adding more.