Has anybody????

General Technical Questions and Answers last answered over 1 year ago.
You may also want to visit the Wiki(pedia) for a more structured index of T25 repair, maintenance, technical and ownership topics

Moderator: Moderators

Forum rules
You cannot post in this Archive forum (read only).
If you require to re-raise one of these topics in the live 80-90 forums, please insert a link to it in your first post.

Has anybody????

Postby kentishvanman » 22 Mar 2009, 11:24

Hi all,
Just been poking around the engine, 1.9DG, (gassed up) looking for things to touch so that they stop doing their job; no mechanic me.
Have noticed water drips on underside of head gasket, on passenger side just over push rod tubes. Wondered where the water had gone from the top up tank.
Has anyone removed cylinder head with engine insitu? Haynes says it can be done in theory but it does not recommend. Taking the engine out to replace a gasket seems like hammer/walnut situation.
Also has anyone got any updates (or used it recently) on the Wynns Sealant article in Wiki? Will try this first before I have to pay someone to rectify the problem. Head gaskets/engine removal are beyond me.
Thanks in advance.
Don :cry:
kentishvanman
 
Posts: 268
Joined: 27th, May 2007
Location: Weald, Kent
80-90 Mem No: 875

Re: Has anybody????

Postby kevtherev » 22 Mar 2009, 14:03

what year engine?
early engines are a bugger for snapping studs.
though using heat helps eliminate this

the haynes gives a full and easy to follow account of engine removal.
once all the water has been drained and the pipes and lectric plugs un plugged or disconnected

can you undo eight nuts?
you can?
cause thats all there is holding the engine in

heads off is so easy with the engine out that even you could do it.

can you undo eight nuts?
you can?
cause that's all there is holding the head on.

Even if you don't do it, it's what your mechanic will be doing so you'll be armed with this if he tries to tell you it's a complicated proceedure and there fore expensive.
I think Baxter quotes eight hours for an engine out/in (switch off switch on)
Image
2.1 DJ on pierburg + LPG
User avatar
kevtherev
 
Posts: 18143
Joined: 23rd, Oct 2005
Location: Country estate Wolverhampton Actually
80-90 Mem No: 2264

Re: Has anybody????

Postby Ian Hulley » 22 Mar 2009, 14:14

Hold On There !

That area is also where a leaking thermostat housing can drip from (sometimes drips onto the exhaust but sometimes it tracks round the jacket seal) and also make sure that the head drain plug (allen headed screw between the pushrods) isn't leaking, again this can drip off the jacket seal.

I'd want to eliminate these before you strip the head down with all the cans of worms that that can open.

Ian.
The Hulley's Bus
1989 2.1DJ Trampspotter
Ian Hulley
 
Posts: 12338
Joined: 11th, Oct 2005
Location: Wirksworth, Derbyshire ... or at t'mill
80-90 Mem No: 1323

Re: Has anybody????

Postby AngeloEvs » 22 Mar 2009, 16:28

I had a drip and removed the push rod tube cover to confirm that it was the head jacket seal and nothing else. Losing about a cup every 500 miles. I was told by a VW mechanic who specialises in T25's to try K-seal as a temporary measure. Its primarily for conventional cylinder head gasket repairs but it seems to have worked on mine.
1987 DG Karisma LPG with remodelled interior
User avatar
AngeloEvs
 
Posts: 754
Joined: 22nd, Nov 2007
Location: Upwell, Norfolk
80-90 Mem No: 4709

Re: Has anybody????

Postby kentishvanman » 22 Mar 2009, 17:17

Kev,
Vehicle left the factory Aug 1987 ie 1988 model, Autosleeper. Main concern about engine removal is all the gas bits.... putting them back that is.

Ian,
Will check and treble check that the leak is where I think it is.

The top up tank emptied itself over a couple of hundred miles. I didn't notice it was empty till I got home. In all the time I have owned the vehicle I don't remember ever having to top up.

Don
kentishvanman
 
Posts: 268
Joined: 27th, May 2007
Location: Weald, Kent
80-90 Mem No: 875

Re: Has anybody????

Postby kevtherev » 22 Mar 2009, 17:41

kentishvanman wrote:Kev,
Vehicle left the factory Aug 1987 ie 1988 model, Autosleeper. Main concern about engine removal is all the gas bits.... putting them back that is.



should you need to remove a head.. that late head will be the lesser of two weevils. lucky you.

be sure that your mechanic checks the head for cracks and that the water jacket seal face is not too badly pitted.
as some phosphate rich antifreezs' cause a moon like surface on the head seal face, which is what causes leaks.

By gas I presume you mean LPG?
well in my experience you don't have to mess with it, just pull off the gas delivery ring and tie it back.
Image
2.1 DJ on pierburg + LPG
User avatar
kevtherev
 
Posts: 18143
Joined: 23rd, Oct 2005
Location: Country estate Wolverhampton Actually
80-90 Mem No: 2264

Re: Has anybody????

Postby chris.S » 23 Mar 2009, 00:22

i have just had to do this as both mine where leaking lucky for me my engine was a donor which was rebuilt 2 years ago drove for 1700 miles then laid up, the heads where really badly pitted this was causing the leak i assume the pitting was caused due to it being sat doing nothing for such a long time.
i removed the engine as i did the front and rear crank seals and others because i got a full gasket set cheap from gsf.
if the engine was still fitted it would of been a pain and a struggle, as i had to use stud extractors to remove the dead sump plug and had to drill out a snapped exhaust stud but other than that and some special nissan sealant my mechnic friend gave me was easy and would happly do it again with the haynes bible and some late nights, but not any time soon hopefully.
but the one thing is my liners came out with the heads so had that to deal with to.
chris.S
 
Posts: 61
Joined: 18th, Nov 2008
Location: Hinckley, Leicestershire
80-90 Mem No: 6156

Re: Has anybody????

Postby maxstu » 23 Mar 2009, 03:33

Don,

If we can organise a convenient date, I'd be happy to help you on your road to engine removal nivarna.

I will admit I have never removed one before either. But got plenty of tools, a trolley jack, time on my hands and a modicum of spanner savvy.

Besides if we do get stuck, post the problem up here and I'm certain the answer will come along. Plus, there's quite a few members in Kent who have the required nouce to put it right (on the end of a phone if necessary) if we feck things up, so fear not (easy to say when not my motor :lol: ).

My biggest fears are exhaust removal (I guess this would be necessary), pulling off heads and something to do with sleeves coming out. And finally lining up the engine to clutch properly so all runs smoothly when connected.

I did watch a video clip posted here (maybe elsewhere?) sometime back.The guy (an American... no, not you Lloyd :lol: ) gave very clear instructions how to rebuild T25 heads and in what sequence, and whats necessary to get everything seated properly. Might not be available now 80-90 club got new format, though. Perhaps another will recognise the clip I mean?

I'll leave you to ponder on this one....
Maxstu aka Stuart

"Blissfully happy in your presence. Otherwise I represent divine discontent."
Lt-Colonel Hilary Hook
User avatar
maxstu
 
Posts: 660
Joined: 7th, Feb 2008
Location: Margate
80-90 Mem No: 3946


Return to Technical Questions and Answers (archived from live forum)

Who is online

Users browsing this forum: No registered users and 8 guests

cron