E28 Alpina Build - by Pedi

5 minute(s) of a 417 minute read

Just a small update. Window wipers/motor needed to be mounted.





Waterpipe, looks like it need some care, right?





Atleast now it looks better....






Alpina custom air inlet, now in position..






Exhaust manifold assembled with a new flexi-"hose" from Alpina..





Looks better now, I hope my head comes back from motorshop next week...






Here is the old B7 turbo...






Auch, a crack in the exhaust house...









Cleaning it, just for the sake of it...






The new turbo is an overhault and modified turbo for the 745i, so cleck the flanges - not alike at all...







But due to the crack in the B7 exhaust housing, I checked the "new" one for cracks.






The "new" housing had several cracks, so I decided to go for the B7-housing. Some cleanup and paint, and I was good to go...






The new compressor housing has a inlet of 60mm, and the old housing has a inlet of 52mm. So hopefully the spool-up would be better?






ARPs in position.




I had not set the pre-tension for the Pinion, I was unsure of the torque. But finally got the correct tool today, and I had to take the diff down again.





Apart - again...







Here is the tool, to measure the "rotating-torque"






Just a bad pic of me






This work needs to be done VERY carefully !!! Caution not to over tighten the nut!!!!!






NOW it is ready!!






The intermediate shaft was not perfect, so I decided to just get it in position. This is because I do not know the condition of the gearbox. If I need to change the gearbox, I even might to exchange to intermediate shaft. This is why I do not want to put money and effort in it now, if the gearbox shows to be good, I'll just take the shaft down again - and make it as new...

Here is a pic of the center bearing/rubber mounting, with a pre-tension of 4 mm.





This was the latest news from the RetroGarage... Hopefully I will get the engine head back in the end of next week, so new pics will come then...