Sharan 1.9tdi Not Starting Turns Over Fast Help

[zorgman]

hi all.

well the old 2l gal went and ive took a chance on a 99 s plate 1.9tdi 110. ive bought it as a non starter and done all the checks with vag-com all seems well with that, immobiliser is ok light goes off and stays off. the cam belt is ok and noticed that the engine seems to turn over fast and smoke coming out of air intake pipe which smells like diesel smoke, i think that the timing belt has slipped but want to know if its possible for the valves to be bent

[big_kev]

I think it is quite likely that something will be seriously amiss with the valves and/or associated components, quite likely the pistons as well.

 

You definitely need to whip the top off and have a look.

 

May need a new head....possibly engine if the pistons are too badly damaged.

[zorgman]

does the sharan share the same head with any other vw deisel engine ie: golf, passet etc as scrappy near me av a few vw engines in i can get a head for cheap

[zorgman]

found the heads used on these models for ref to any one else.

 

 

COMPLETE CYL.HEAD(SEE TEXT) SHARAN 1.9TD 1Z 08.95-02.96

From Eng 1Z 770001 (AUDI A4 Saloon 1.9TDi 1Z AHU AHH: 66 kw (4cyl) 01/11/1994 - 31/12/1998)

AHU (AUDI A4 Saloon 1.9TDi 1Z AHU AHH: 66 kw (4cyl) 01/11/1994 - 31/12/1998)

From Eng 1Z 770001 (AUDI A4 Avant 1.9TDi 1Z AHU AHH: 66 kw (4cyl) 01/11/1994 - 31/12/1998)

AHU (AUDI A4 Avant 1.9TDi 1Z AHU AHH: 66 kw (4cyl) 01/11/1994 - 31/12/1998)

From Eng 1Z 770001 (AUDI Audi Cabriolet 1.9TDi 1Z : 66 kw (4cyl) 01/06/1991 - 31/08/2000)

From Eng 1Z 770001 (AUDI A6 Saloon 1.9TDi 1Z: 66 kw (4cyl) 01/06/1994 - 30/04/1997)

From Eng 1Z 770001 (AUDI A6 Avant 1.9TDi 1Z: 66 kw (4cyl) 01/07/1994 - 01/08/1997)

From Eng AFF 002001 (AUDI A4 Avant 1.9 TDi AFF: 55 kw (4cyl) 01/11/1994 - 31/12/1998)

From Eng AFN 002001 (AUDI A4 Avant 1.9 TDi AFN: 81 kw (4cyl) 01/11/1994 - 31/12/1998)

From Eng AFF 002001 (AUDI A4 Saloon 1.9 TDi AFF: 55 kw 01/11/1994 - 31/12/1998)

From Eng AFN 002001 (AUDI A4 Saloon 1.9 TDi AFN: 81 kw 01/11/1994 - 31/12/1998)

FROM ENG NO. 1Z 770 001 (SEAT TOLEDO 1.9 TDI 1Z : 66kw 01/01/1991 - 01/03/1999)

From Eng 1Z 770001 (VOLKSWAGEN Golf III 1.9 TDi 1Z : 66 kw 01/11/1991 - 30/06/1998)

From Eng 1Z 770001 (VOLKSWAGEN Vento 1.9 Turbo Diesel 1Z : 66 kw 01/11/1991 - 30/09/1998)

From Eng 1Z-770001 (VOLKSWAGEN Golf Variant 1.9 TDi 1Z : 66 kw 01/07/1993 - 28/02/1999)

From Eng 1Z 770001 (VOLKSWAGEN Golf Convertible 1.9 TDi 1Z : 66 kw 01/09/1993 - 30/08/1998)

AHU Engine (VOLKSWAGEN Passat 1.9 Turbo-Diesel inj. 1Z AHU: 66 kw 01/10/1993 - 31/12/1996)

From Eng 1Z 770001 (VOLKSWAGEN Passat 1.9 Turbo-Diesel inj. 1Z AHU: 66 kw 01/10/1993 - 31/12/1996)

From Eng AHU 002001 (VOLKSWAGEN Caddy 1.9 Turbo Diesel inj. AHU ALE: 66 kw 01/11/1995 - 30/06/2003)

ALE (VOLKSWAGEN Caddy 1.9 Turbo Diesel inj. AHU ALE: 66 kw 01/11/1995 - 30/06/2003)

From engine no 1Z 770 001 (VOLKSWAGEN Sharan 1.9 Turbo-Diesel inj. 1Z : 66 kw 01/09/1995 - 31/03/2000)

AHU Engine (VOLKSWAGEN Passat Estate 1.9 Turbo-Diesel inj 1Z AHU: 66 kw 01/10/1993 - 31/12/1996)

From Eng 1Z 770001 (VOLKSWAGEN Passat Estate 1.9 Turbo-Diesel inj 1Z AHU: 66 kw 01/10/1993 - 31/12/1996)

[Fencourt]

hi all.

well the old 2l gal went and ive took a chance on a 99 s plate 1.9tdi 110. ive bought it as a non starter and done all the checks with vag-com all seems well with that, immobiliser is ok light goes off and stays off. the cam belt is ok and noticed that the engine seems to turn over fast and smoke coming out of air intake pipe which smells like diesel smoke, i think that the timing belt has slipped but want to know if its possible for the valves to be bent

 

 

If the timing belt has slipped, it's your timing. Timing has to be spot on then it will start first time otherwise it will turn over and smoke till the cows come home or battery goes flat. As for bent valves, if you can get it to turnover there's a good chance everythings ok, just need to adjust the timing, when this is done, if the first time of starting it sounds like someones in the engine hitting it with a hammer 1. TURN the engine off, 2. Check your timing, adjustments if required untill it sounds sweet.

 

Good luck.

 

Fencourt.

[Beyond Help?]

Generally with a diesel if the engine is turning over quickly then there is a loss of compression. If the timming is out enough to cause a loss of compression then normally the valves will have been struck.

 

Is it smoking at all when turning over?

[Beyond Help?]

As for bent valves, if you can get it to turnover there's a good chance everythings ok, just need to adjust the timing, when this is done, if the first time of starting it sounds like someones in the engine hitting it with a hammer 1. TURN the engine off, 2. Check your timing, adjustments if required untill it sounds sweet.

 

Good luck.

 

Fencourt.

That is pretty much nonsense I am afraid. If it sounds like something is being hit then the valves are being hit.

[zorgman]

well i got stuck into car and had a look at belt and found i could lift belt off cam sprocket so somethings amiss there methinks its the tensioner. anyhow off came the rocker cover and checking the cam noticed that 4 hydraulic tappets looked odd looking further and checking with other ones i could move the "high" ones feeling spring pressure wheras the low ones wouldnt budge so its bent valves, now its just a case of the god zorg is smiling and that ive no holes in the pistons.

will keep you updated

[Beyond Help?]

To be honest the pistons are pretty sturdy as are the big ends and gudgeon pins. I have seen engines that snapped their belts at around 4K RPM and the pistons were fine. The valves are inexpensive as are the lifters. As long as the lifters come out OK you should be OK head-wise too, but check for broken valve guides, they can be replaced. If any lifters are stuck it could be for one of two reasons: The valve has punched through the bottom or the lifter has balooned out. If the lifter has balooned then the lifter hole must be checket to make sure it has not become oversized.

 

Note: KEEP THE OLD HEAD GASKET! You will need it to identify the thickness of the new one!

 

Normally you will not need to have the head skimmed.

 

You will probably need some half moon spanners to remove the exhaust down pipe from the turbo as room is very restricted. Al though it is discouraged it is possible to remove the turbo from the manifold. If you do this you must use new nuts and washers when you refit it.

[zorgman]

thats great news for me as i was thinking holes in pistons etc, took a gamble when i bought car 99 s for

[tiny]

You will probably need some half moon spanners to remove the exhaust down pipe from the turbo as room is very restricted. Al though it is discouraged it is possible to remove the turbo from the manifold. If you do this you must use new nuts and washers when you refit it.

 

And remember NEVER EVER be tempted to use any form of gasket sealant anywhere inline (exhaust side) between the head and turbo. Residue can break away and destroy a turbo, always use new gaskets!

[Beyond Help?]

Yes, new head to manifold gaskets, and if you do remove the turbo there is nothing between it and the manifold, it is simply metal to metal clamped really tightly.

 

A gasket set will give you everything you need including oil seals and stem seals. The head gasket comes separately as there are three types available. Another word of advice, when you refit the valves use new valve split cotters, they are about 75p each from VW and you need 16 of them. The old ones could be damaged and you can not tell with the naked eye sometimes. The last thing you want is for them to fail when the engine is running and a valve to drop into the chamber.

[Beyond Help?]

Oh and have plenty new fuel hose type vacuum pipe handy!

[zorgman]

well the job starts on sat all being well as ive got a knackered back so mates coming down to strip it off so i can make a list of all i need to do job.

thanks for all the info on job

[zorgman]

well heres the list all because the belt was slack

8 new valves only 5 where bent tho

8 new lifters as 3 where damaged

timing belt kit

new gaskets

oil, filters, anti freeze etc

the total job costing