Porsche 911 MFI Repair.mp4

Here's another interesting repair that John Edwards does at Costa Mesa R&D Automotive Machine, its the repair of a Porsche 911 MFI throttle body with corrosion damage. Costa Mesa R&D Automotive Machine (949) 631-6376 Don't forget to "Click" and SUBSCRIBE.

Category:

Autos & Vehicles

Tags:

• porsche
• 911
• 912
• 908
• 906
• 904
• 917
• audi
• vw
• volkswagon
• volkswagen
• bmw
• mercedes
• benz
• bitter
• mfi
• mechanical
• fuel
• injection
• repair
• rebuilding
• corrosion
• damage
• damaged
• engine
• machinist
• machine
• fiat
• 850
• ferrari
• alfa
• romeo
• turbocharger
• turbo
• supercharger
• supercharged

[kisoia]

John- What was the source of the corrosion requiring the repair? Is this a common problem on these TBs?

Thanks

[fiatnutz]

@kisoia - Its a problem with almost all 911 MFI manifolds, they are made from magnesium. Mag is not very compatible with water and when these cars sit for a long time, you get this problem.

[farias615]

what is the camera you use?

[fiatnutz]

@farias615 - Fuji S9100

[hamza3608]

Great work, it has been brought up before but why not bore out the throttle body and "upgrade" so to speak. So new shafts, butterflies ect. Which would help with flow, thus a better running engine??

[fiatnutz]

@hamza3608 - Finding oversize throttle plates with a 80 degree seat angle is pretty difficult, but this would definitely be a better solution for performance. I do this on Weber carbs all the time, but Weber T/plates are much easier to find.

[ip161314]

awesome!!!!!!! but glued? couldn´t be pressed in? i´m just curious, you are the master!!

[backwoodsctryboy]

100 % awesomeness. John is a machinist GOD

[ip161314]

@Kizmox ok thats fine, i´m just asking.....

[jcadlols]

@ip161314 I can't answer for why he chose to glue it, but throttle bodies experience low temperatures and often bonding metals is stronger than even welding. Gluing is definitely the easier option and would work perfectly due to the low temperatures and large surface area. Many chassis are bonded, not welded or riveted. :)

[farias615]

@fiatnutz thanks john

[popusimi]

Hi there!

How do you center the drill exactly over the hole? Maybe you have allready answered this somewhere sometime, but im curious. And why did you glue the part, is it because the corrosion, to prevent the galvanic corrosion, or did you find it easyer that way?

Thank you for your time and thank you for making theese videos.

[its0a0me]

@brendanraymond~ yep. Id use SST throttle plates.

[brendanraymond]

@ip161314 I too would like to know.