So, after 6 years of owning my V6 my dream comes true. I bought the 3.0 V6 from Alfa 166. I decided to share photos and information from the procedures which I'm going to do.
Currently I have disassembled heads, valves, valve springs, hydraulic tappets (many of them was jammed, so I restored them.) then I have completely disassembled intake, timing belt and other accessories.
I'm planning to make some changes in engine wiring (just optical. It's CF2 and I don't like the way how the injector wires are placed.)
So, here is the first part of photos:
(https://lh3.googleusercontent.com/-dX8ULZ1S8LI/U0_BifgoJgI/AAAAAAAAA7M/oDeCnKjF1CA/w742-h491-no/_DSC1164.jpg)
(https://lh5.googleusercontent.com/-UJz7-FSXyoM/U0_BffGyZ4I/AAAAAAAAA6w/J5ZuZAPYcss/w742-h491-no/_DSC1165.jpg)
(https://lh6.googleusercontent.com/-py_S3nhnURY/U0_BhsjSyyI/AAAAAAAAA68/_0WDafl056Q/w742-h491-no/_DSC1169.jpg)
(https://lh3.googleusercontent.com/-OyOm9-TyC5k/U0_BmVxomII/AAAAAAAAA74/9tKL0hbXWPo/w742-h491-no/_DSC1179.jpg)
Disassembling intake parts:
(https://lh3.googleusercontent.com/-zOfw2_4LMvg/U0_BmkNnmmI/AAAAAAAAA7w/RF7rG4I_o1A/w742-h491-no/_DSC1182.jpg)
(https://lh5.googleusercontent.com/--QS-2gnHVwo/U0_BkyH0fBI/AAAAAAAAA7g/iXIKFId-99A/w742-h491-no/_DSC1181.jpg)
I tried to put the 3.0 intake runners on 2.5 engine. The car is a little more powerful at the higher rpms.
Here is the comparison of intake runners from 2.5 and 3.0:
2.5 has 38mm runners and 3.0 has 45mm runner
2.5 bottom side of the plate:
(https://lh6.googleusercontent.com/-meeP2guytZ4/UyyeD9uARUI/AAAAAAAAPEU/UHiONW1HttE/w742-h491-no/_DSC1231.jpg)
3.0 bottom side of the plate:
(https://lh6.googleusercontent.com/-cHsdWu7513w/UyyeEAXHHEI/AAAAAAAAPEc/WwdTcgchx5A/w742-h491-no/_DSC1232.jpg)
2.5 upper side
(https://lh3.googleusercontent.com/-yDDJ15wx6SQ/UyyeE1vFtFI/AAAAAAAAPEk/072_RcE6BtY/w742-h491-no/_DSC1233.jpg)
3.0 upper side
(https://lh4.googleusercontent.com/-89qt7Hg8Ing/UyyeFTpYArI/AAAAAAAAPEg/lv0aNp9SIOE/w742-h491-no/_DSC1234.jpg)
After i disassembled the 2.5 intake i spotted this little failure :/
(https://lh5.googleusercontent.com/-rorWRIOb0ic/UyyeD0erKoI/AAAAAAAAPEM/Gs3raCzpQcs/w742-h491-no/_DSC1229.jpg)
This may caused that strange noise I heard...
Disassembling and cleaning the heads
(https://lh5.googleusercontent.com/-iRDSU5xB_Iw/UydO95vAqkI/AAAAAAAAPAQ/PWehc5xhSAA/w622-h412-no/_DSC1184.jpg)
(https://lh4.googleusercontent.com/-ptAsNNIvf3U/UyoGuQ6qGcI/AAAAAAAAPBo/Lea3EgVPYGA/w622-h412-no/_DSC1201.jpg)
(https://lh4.googleusercontent.com/-pR3PIMq0FLY/UyoGux0kVRI/AAAAAAAAPBs/nUBlDaRn6Rc/w622-h412-no/_DSC1189.jpg)
(https://lh3.googleusercontent.com/-_zUSXYOMDh4/UyoGvpbg8eI/AAAAAAAAPB4/MtxsjLBvjmQ/w622-h412-no/_DSC1203.jpg)
(https://lh4.googleusercontent.com/-G7yUPEvVfps/UyoGv9-gqBI/AAAAAAAAPCA/dVp7ogOwvT0/w622-h412-no/_DSC1204.jpg)
(https://lh4.googleusercontent.com/-X7S4EBdRKE0/UyoIBSuGI8I/AAAAAAAAPCg/0R13wzIxOdA/w622-h412-no/_DSC1197.jpg)
(https://lh5.googleusercontent.com/-r4NcZLvmcE0/U6NLxHQTGSI/AAAAAAAAQCk/QzpE8bM0Hz8/w622-h412-no/_DSC2353.jpg)
The valve leakage testing:
(https://lh5.googleusercontent.com/-rMDPfmrqqsM/U6NLxmKN0VI/AAAAAAAAQCU/b7VyEpfwZww/w622-h412-no/_DSC2355.jpg)
Nice and clean :)
(https://lh4.googleusercontent.com/-fJ_eQ3gKLjI/U60PgzKp4hI/AAAAAAAAQWI/hsM2rKjW3Vk/w622-h467-no/14+-+3)
Interesting info on the differences (and similarities between the late 2.5 and 3.0) thanks for posting. Sorry about the slow reply - not sure how I missed this earlier.
:) I'll keep sharing the photos and information. For now is the progress paused. I'm still waiting for the second head gasket and also I was on holidays so I spent a lots of money. Travelling with the V6 is not cheapest here, but I love it :) Definitely it's worth the money :)
The last thing I did with the engine before I went to the holidays was cleaning of the block and assembling of the all components of heads.
Before
(https://lh5.googleusercontent.com/-un24dFFGxQI/U-RbmYrfqJI/AAAAAAAAQkQ/9ortKOdHRGY/w622-h829-no/10527755_10152277313238657_7166883866481442190_n.jpg)
After
(https://lh5.googleusercontent.com/-Ln_aYKzRT_Q/U-Rbmn9A6uI/AAAAAAAAQkg/lAK9jsHmggc/w622-h829-no/1466248_10152277313463657_4995315731455845969_n.jpg)
(https://lh4.googleusercontent.com/-ho-oa_fBvCE/U-RbnZ8GT-I/AAAAAAAAQkc/Ts9zrwMmXPA/w622-h467-no/1978908_10152277310638657_4773003282772668429_n.jpg)
(https://lh4.googleusercontent.com/-ytKobl_X_nw/U-RbmfoA7BI/AAAAAAAAQkM/iZQC5au-ozk/w622-h467-no/10540821_10152277314033657_443112127127017863_n.jpg)