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knighty · Alfasud Joined: 12 Oct 2004 Posts: 33 Location: Essex, UK

I need to change the hydraulic tappets on my 1.7 boxer motor........but as the cam cover bolts also appear to be the main head bolts, therefore will I need to change the head gasket too?.....as removing the cam cover seems to mean the head will fall off too, therefore if I release the compression on the head gasket, can it simply be re-used - or will I need new ones?.........your experiences would be appreciated

cheers

Knighty

lee16v · Posted: Tue Jan 06, 2009 10:31 am Post subject:

You can do the tappets without removing the head. The main head bolts are visable when the cam cover is off and dont need to be messed with to tackle this job. I would however recommend putting new camshaft seals on and if perished, new cam cover seals as you'll probably have oil leaks from these after disturbing them.

knighty · Alfasud Joined: 12 Oct 2004 Posts: 33 Location: Essex, UK

thats great news.........I think I have some cam seals in the gasket kit I bought from ebay, so I will be sure to replace them too.......thanks very muchly!

ZeNiTh-PbArM · Posted: Wed Jan 07, 2009 9:22 pm Post subject:

Hi,

On 16V engine it is possible to replace tappets with the engine in place.
On 8V engine it is impossible because the six 17mm head bolts also hold the cam cover (there are also four 13mm bolts fastening the cover to the head). And the head bolts have to come off, and you cannot remove them without removing the head since they are very long and the inner wing prevents them from being removed.
So, on the 8V engine a tappet job requires head removal. Great occasion to do some valve lapping and replace camshaft seals at the same time!

regards,
zp

lee16v · Posted: Thu Jan 08, 2009 11:43 am Post subject:

Oops! didn't realise there was such a difference between them! Well they say you learn something everyday.

baldy · Alfasud Joined: 23 Jan 2006 Posts: 67

Hi, i'm currently rebuiling my 16 valve and need some new tappets. I got a full set for my XR2 a few years back for 40 quid. Just priced them up for the alfa, 13.50 pounds each plus vat Shocked

Anybody know of a cheaper supplier of new tappets in the uk?

ZeNiTh-PbArM · Posted: Thu Jan 08, 2009 10:37 pm Post subject:

Hi, they are specific ton Alfa/Lancia but can be sourced from other engines at a scrapyard ; here's the list of cars that use identical tappets.
not : 8V tappets can be sourced from other makes/brands.

regards,
zp

# ALFA ROMEO145, 1.7 i 130cv
# 146, 1.7 i 16V 130cv
# 156, 2.5 i V6 190cv, 2.5 i V6 24V 190cv Q System BA, 2.5 i V6 24V 192cv, 2.5 i V6 24V 192cv Q System BA, 3.2 i V6 GTA 250cv, 3.2 i V6 GTA 250cv Selespeed BA
# 156 Phase 2, 2.5 i V6 24V 192cv, 2.5 i V6 24V 192cv BA, 3.2 i V6 GTA 250cv, 3.2 i V6 GTA 250cv Selespeed BA
# 156 Sport Wagon, 2.5 i V6 24V 190cv, 2.5 i V6 24V 190cv, 2.5 i V6 24V 190cv Q System BA, 2.5 i V6 24V 192cv Q System BA, 3.2 i V6 GTA 250cv, 3.2 i V6 GTA 250cv Selespeed BA
# 156 Sport Wagon Phase 2, 2.5 i V6 24V 192cv, 2.5 i V6 24V 192cv Q System BA, 3.2 i V6 GTA 250cv, 3.2 i V6 GTA 250cv Selespeed BA
# 164 92, 3.0 i V6 210cv, 3.0 i V6 24V Q4 230cv, 3.0 i V6 Q4 210cv
# 164 Super, 3.0 i 210cv, 3.0 i 24V Q4 230cv, 3.0 i V6 24V 210cv, 3.0 i V6 24V 210cv BA, 3.0 i V6 24V 220cv, 3.0 i V6 24V 220cv BA
# 166, 2.5 i V6 24V 188cv, 2.5 i V6 24V 190cv, 2.5 i V6 24V 190cv Sportronic BA, 3.0 i V6 24V 220cv, 3.0 i V6 24V 220cv Sportronic BA, 3.0 i V6 24V 225cv, 3.0 i V6 24V 225cv Sportronic BA
# 166 Phase 2, 2.5 i V6 24V 188cv, 3.0 i V6 24V 220cv BA, 3.2 i V6 24V 240cv
# 33 (907), 1.7 i 16V 132cv, 1.7 i 16V 137cv, 1.7 i 16V 4x4 137cv
# 33 Sport Wagon (907), 1.7 i 16V 129cv, 1.7 ie 110cv
# GT, 3.2 V6 A coupé 240cv
# GTV, 3.0 i V6 24V coupé 218cv, 3.0 i V6 24V coupé 220cv
# Spider (916), 3.0 i V6 218cv
# Spider Phase 2, 3.2 i V6 24V 240cv

LANCIA
# Kappa (838), 3.0 ie V6 24V 204cv, 3.0 ie V6 24V 204cv BA
# Kappa (838) coupé, 3.0 ie V6 20V 204cv BA
# Kappa (838) SW, 3.0 ie V6 24V Break 204cv, 3.0 ie V6 24V Break 204cv BA
# Thesis, 3.0 i V6 215cv BA

Trentatre · Alfa Arna Joined: 27 Jul 2009 Posts: 8 Location: Germany

Hi,

I`m about to do the same thing (changing tappets and valve cover gaskets). Just don`t know the correct procedure to re-assemble the heads, would be great if someone could help me with the tightening order and the torque of the head bolts !

Regards,

Tobias

RFlower · Posted: Thu Jul 30, 2009 1:19 pm Post subject:

This diagram came in the gasket set.

I slacken them, gradually, in the reverse order.

[img]http://usera.ImageCave.com/panjang/Head Bolt sequence.jpg[/img]

Image posting isn't working right now. Try copy and paste URL

Edit: Tightening:

The leaflet with the gasket set (Bought in France, for Imola) says:

3Kpm, 6Kpm, 9Kpm, -90º+9Kpm, <>, -90º+9Kpm
(I suppose <> means loosen and tighten a bit?)
Retightening: 1000Km -90º+9Kpm

The Alfa 33 Manual says:

Camshaft carrier bolts: 1.9 - 2.4 Kgm

Head bolts: 8.3 - 8.9 Kgm, Warm up engine until fan cuts in, then unloose (sic), lubricate, and retighten to same torque.

Using the numbers on the diagram with the gasket set, the sequence in the Alfa 33 Manual is 2, 1, 4, 3, 6, 5, which amounts to more or less the same thing.
_________________
Dick Flower, Nr. Carcassonne. '94 Trofeo 1.4 ie (F), '93 Imola 1.3/1.4 ie (now for breaking) (F), '91 1.7 ie (GB)(spare car), '86 Sprint 1.5 QV (F). '87 VW Syncro camper (F), '73 NSU Ro80 (F), '99 Fiat Seicento (F)

RFlower · Posted: Thu Jul 30, 2009 1:57 pm Post subject:

You can download manuals from here http://www.alfaromeo33.extra.hu/

The head bolt details are on page 498 of "Workshop Manual 33 nuova"
_________________
Dick Flower, Nr. Carcassonne. '94 Trofeo 1.4 ie (F), '93 Imola 1.3/1.4 ie (now for breaking) (F), '91 1.7 ie (GB)(spare car), '86 Sprint 1.5 QV (F). '87 VW Syncro camper (F), '73 NSU Ro80 (F), '99 Fiat Seicento (F)