Alfa 33 16v Rebuild

budweiser_sud · #1 (**permalink**) 06-12-2007, 11:06 PM

As promised, I finally motivated myself (well actually just made the time), to upload some pics of my 16v project. I reckon it will be at least a month before I'm driving again but its going to be worth it. It really is amazing how previous owner's lie about their cars - Dismantling this motor only revealed it had infrequent oil changes with low quality oil.

Thankfully I didn't find any serious damage, the worst being some idiot replaced one of the valve guides with a custom oversized unit - so fitting a replacement valve meant another trip to the machine shop (cheers Dino246!).

Nice and clean...

Hopefully I'll be able to keep it this clean!

Crank awaiting to be dropped in. Hopefully I won't see this again for another 200,000 km.

Pistons and rods awaiting assembly and the new rings.

Stock pistons - would have been nice to used my forged units, but this is just a daily driver.

Everything was balanced, acid bathed, linished, etc. I'm awaiting return of the heads after the new valve guides are installed. Just about everything in the engine bay has been removed to be cleaned and rebuilt.

budweiser_sud · #2 (**permalink**) 06-12-2007, 11:08 PM

More pics:

Like my cam covers and intake manifold?

All good things come to those who wait - ever tried finding a replacement 33 16v front bumper at a decent price?! (That's not the final coat, just the primer!)

More to come!
~Benjamin

Dino246 · #3 (**permalink**) 06-13-2007, 12:09 AM

Looking good Ben, at least they used some good coolant! The heads were in good nick, shame about that one guide.

Have you tried out that high lift build undercoating gear? Hopefully get some sunshine to finish of that painting!

Good luck with the rest.

Regards,
Tim.

fly33boxer · #4 (**permalink**) 06-13-2007, 12:20 AM

Nice got to love the look of a new clean engine if only it stayed like that inside mmmmmmmmm
I loved my heads ooohhhhh ported and polished and new cams from colombo bariani.

I like the wrinkle finish on the cam covers nniiicccee.

budweiser_sud · #5 (**permalink**) 06-13-2007, 12:25 AM

I might donate some money to Colombo Bariani in the near future!

Who did your porting and polishing? Did they run the heads on the flow bench?

Tim - what's that "high lift build undercoating gear" you mention?

~Benjamin

fly33boxer · #6 (**permalink**) 06-13-2007, 12:32 AM

Quote:

Originally Posted by budweiser_sud

I might donate some money to Colombo Bariani in the near future!

Who did your porting and polishing? Did they run the heads on the flow bunch?

Tim - what's that "high lift build undercoating gear" you mention?

~Benjamin

budweiser_sud · #7 (**permalink**) 06-13-2007, 12:36 AM

I'm tempted to buy a decent die grinder and some nice diamond tools to have a go myself. Would probably be wise to experiment on a couple of old 8 valve heads first though before I touch the 16v!

~Benjamin

budweiser_sud · #8 (**permalink**) 07-26-2007, 05:12 AM

I finally found some time to add some more pictures of the rebuild, i sure some of you will be interested to see how things are progressing!
Finally got the heads back after 4 weeks or so, had to have all new valve guides and 1, yes 1!!, custom guide as somewhere along the line someone forced in a slightly over size guide and messed up the fitment of a new one. But all is well now. Had the valves all reseated with the proper 3 angle grind for optimal valve sealing, so compression will be up to spec!
Also fitted the cams the right way round this time, someone fitted the inlet cam for the exhaust...duh!! (same side with the bad valve guide...why do people do these things??!!)Now onto the pictures...

The heads...

With cam covers...mmm

Block with headgasket and ready for heads...keeping it clean here!

heads on...

budweiser_sud · #9 (**permalink**) 07-26-2007, 05:20 AM

more...

Mocked up with the intake plenum..also red wrinkle finish...

Gearbox was fully rebuilt with new synchros, dont skimp here!

Resprayed bumper and acessories, we do all painting in house..my brother (77SudTi) is very very good at it...

these are before the 4 coats of clear went on...mmm shiny...

Thats it for now...more soon..keep and eye out!

enri · #10 (**permalink**) 07-26-2007, 05:28 AM

thanks for the great detailed photos
those wide angle hemspherical twin cam heads are classic alfa plus multivalve

77SudTi · #11 (**permalink**) 07-26-2007, 05:44 AM

Absolutely...pitty Alfa dropped the 16V boxer...if it had more development it would be a beastly motor!

dave.armstrong · #12 (**permalink**) 07-26-2007, 01:49 PM

I love seeing quality work!

Fantastic. I bet it will sound and go well too.

hughqv · #13 (**permalink**) 07-26-2007, 09:53 PM

Quote:

Also fitted the cams the right way round this time, someone fitted the inlet cam for the exhaust...duh!!

budweiser_sud · #14 (**permalink**) 07-29-2007, 06:55 AM

Another 4 hours work...

I was just going to clean up the 16v throttle bodies with some carby clean, but soon decided a complete strip down would be a better idea seeing as I've gone so far on the engine - they sure did come up well! Will post more pics soon...

~Benjamin

Tulipwood Racer · #15 (**permalink**) 08-05-2007, 07:19 AM

Hi guys,
I'm just new on this board and I'm very anxious to see how this story continues?