|
|
|
|
| Author |
|
|
Smart quod bastardus
|
turbo spark plugs
Can anyone comment on these plugs and let me know if it looks normal for a turbo or do I have a problem:
Bosch W3DPO standard high dollar plug for the 79 930:   
|
||
06-20-2007, 07:29 PM
|
|
|
Registered
Join Date: Aug 2005
Location: Centerville, Ohio
Posts: 1,095
|
They look a bit black to me.. but maybe I am seeing more than is really there..
__________________
" The reason the Irish are always fightin each other is that there are no other worthy opponents" |
||
|
06-20-2007, 07:59 PM
|
|
|
Crotchety Old Bastard
|
Ouch Fred, that bottom one looks pretty nasty. That plug does not look to be functioning.
__________________
RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds '78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8 |
||
|
06-21-2007, 05:27 AM
|
|
|
Registered
|
Too cold a plug. Add to that maybe a little oil getting past the valve guides and some blowby on the rings.
I'd go to a 4 heat range plug and check it again. A leakdown test might help pinpoint if there are other problems.
__________________
2014 Cayman S (track rat w/GT4 suspension) 1979 930 (475 rwhp at 0.95 bar) |
||
|
06-21-2007, 05:38 AM
|
|
|
Registered
Join Date: Aug 2005
Location: Michigan
Posts: 3,381
|
The first two pics looked pretty much like mine. Black and sooted. Which is normal. The last pic looks pretty rough to me too.
__________________
Bill 997.2 |
||
|
06-21-2007, 06:19 AM
|
|
Herman the German
78 Porsche 911SC 3.0L, 3.3Turbo soon. 
1979 Porsche 930 3.4
