WBXOily

Big lumps of metals and spanners. Including servicing and fluids.

Moderators: User administrators, Moderators

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: WBXOily

Post by itchyfeet »

Thanks I use this which is far easier because it's illustrated and more trustworthy because it's a VW publication.

I haven't checked valve diameters, just the play page 15.18

http://syncrosport.com/info/manual/VW_T ... hanics.pdf" onclick="window.open(this.href);return false;
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
937carrera
Registered user
Posts: 3599
Joined: 05 Apr 2015, 19:29
80-90 Mem No: 16333
Location: N Yorks.

Re: WBXOily

Post by 937carrera »

That's a seriously useful link. Downloaded & saved 8) :D

Thank you
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: WBXOily

Post by itchyfeet »

937carrera wrote:That's a seriously useful link. Downloaded & saved 8) :D

Thank you

To be fair most of it is in Bentley too, but thats free.
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: WBXOily

Post by itchyfeet »

Has anybody got and tried and trusted way of removing compression seals / fire rings without resorting to a screwdriver, I have scratched too many heads before?

ImageP1080844 by Paul_Barr, on Flickr
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

weimarbus
Registered user
Posts: 808
Joined: 19 Jun 2010, 12:53
80-90 Mem No: 10165
Location: coulsdon

Re: WBXOily

Post by weimarbus »

Yep just tried this on an old head, gently heat combustion chamber with blow lamp to expand the bore squirt wd 40 through the tube onto the fire ring to shrink and out it will pop, well mine did and it was stuck before, good luck.
1985 hi-top 2.1MV with DG carb and LPG
1955 trials buggy with 1.9 DG high lift cam and twin dell's (now sold)
1972 1303 beetle
1992 Audi 100 2.8 quattro estate
1967 Vw  Madison kit

User avatar
937carrera
Registered user
Posts: 3599
Joined: 05 Apr 2015, 19:29
80-90 Mem No: 16333
Location: N Yorks.

Re: WBXOily

Post by 937carrera »

That should work - you can also try a feeler gauge instead of a screwdriver.
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: WBXOily

Post by itchyfeet »

weimarbus wrote:Yep just tried this on an old head, gently heat combustion chamber with blow lamp to expand the bore squirt wd 40 through the tube onto the fire ring to shrink and out it will pop, well mine did and it was stuck before, good luck.


Thanks weimarbus heat worked but I didn't need to spray it.

I heated the ring by going round in circles with the torch, the ring expanded and buckled lifting in one place than easy to lift out :ok

Not a scratch in sight.

ImageP1080852 by Paul_Barr, on Flickr

ImageP1080851 by Paul_Barr, on Flickr

ImageP1080853 by Paul_Barr, on Flickr
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

300CE
Registered user
Posts: 2531
Joined: 16 Aug 2012, 13:05
80-90 Mem No: 12017
Location: Sidcup, Kent

Re: WBXOily

Post by 300CE »

Watching with interest Paul, looks like a nice easy job getting those out :ok
'86 DG, Weber Carb

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: WBXOily

Post by itchyfeet »

300CE wrote:Watching with interest Paul, looks like a nice easy job getting those out :ok

Everything is easy when you know how, it wasn't immediately obvious to me and I have done quite a few head seals in the past.

Its why I try to share what I have learned, I bet others have strugged with this too.
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

weimarbus
Registered user
Posts: 808
Joined: 19 Jun 2010, 12:53
80-90 Mem No: 10165
Location: coulsdon

Re: WBXOily

Post by weimarbus »

There's not much point in getting older if you don't hopefully get a little wiser. The last time I thought 'it's only a little scratch' it led to pressurising the coolant around 10,000 miles later and scrapped heads.
1985 hi-top 2.1MV with DG carb and LPG
1955 trials buggy with 1.9 DG high lift cam and twin dell's (now sold)
1972 1303 beetle
1992 Audi 100 2.8 quattro estate
1967 Vw  Madison kit

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: WBXOily

Post by itchyfeet »

Cleaned up head 1&2 today and ground valves, inlet for No2 would not grind it's had it, burnt by the looks, maybe lean the deposits were rock hard, found a good valve from a scrap head and swapped it over.

so that explains low compression on No2


No1 10 bar ( leaking oil out of plug hole)
No2 8,75 bar ( worn inlet valve)
No3 9 bar ( broken rings)
No4 11 bar

ImageP1090029 by Paul_Barr, on Flickr
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

what2do
Registered user
Posts: 2824
Joined: 05 Oct 2012, 08:55
80-90 Mem No: 11974
Location: Salisbury

Re: WBXOily

Post by what2do »

Have you any pics of the worn valve and seat?
Why would the glass be anything other than half full?

'89 panel van, 1.9 DG.

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: WBXOily

Post by itchyfeet »

what2do wrote:Have you any pics of the worn valve and seat?

hard to photograph, seat is fine the valve is degraded so a 10-15mm section is not ground.

ImageP1090032 by Paul_Barr, on Flickr
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: WBXOily

Post by itchyfeet »

I decided to swap both inlet valves as I wasn't happy with the other either.

Valves refitted.

ImageP1090033 by Paul_Barr, on Flickr

The inlet valves on the other are just as bad so I didin't even bother trying to grind them, I just swapped them with some from another head.

ImageP1090034 by Paul_Barr, on Flickr

ImageP1090040 by Paul_Barr, on Flickr
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: WBXOily

Post by itchyfeet »

I really want this out of the shed before the camping season starts so need to crack on.

I need a parts list as it's not my engine so I want all the bits ordered

End float is way too much so removed the flywheel to see whats happening

ImageP1090517 by Paul_Barr, on Flickr

quite oily not helped by the usual groove in the flywheel

ImageP1090518 by Paul_Barr, on Flickr

I like to cut the lip off the seal so I can see what I'm doing

ImageP1090519 by Paul_Barr, on Flickr

punch the seal in a few places taking care not to slip off, it releases it

ImageP1090521 by Paul_Barr, on Flickr

lever it out

ImageP1090523 by Paul_Barr, on Flickr

looks reasonable, no disasters

ImageP1090524 by Paul_Barr, on Flickr



large shim should be 0.4mm this is where most of the wear is

ImageP1090526 by Paul_Barr, on Flickr

other two are both 0.37mm

I had a new 0.4 'in stock' so tried it

o ring out first

ImageP1090525 by Paul_Barr, on Flickr

gone too far 0.02mm ( want 0.07 to 0.1mm ideally, lower end of the range)

ImageP1090529 by Paul_Barr, on Flickr

swapped a 0.37 with a 0.32 I had 'in stock'

thats good

ImageP1090530 by Paul_Barr, on Flickr
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

Post Reply