The V8 Owners Forum -

Hi Ron, Yes I fitted a rear crankcase breather which has eliminated the negative preasure but the r/h carb which feeds 5 & 8 will only run right when you blank its breather off! I now suspect that the butterfly is not closing fully as the throttle linkage looks fine, any other thoughts? Thanks T...

After some great advice from the forum I've got all 8 firing but its not all good news :( When I've tried to balance the su's the r/h carb is drawing a lot more air than the left? I've checked the damper and the butterfly all seem ok, the only way I can seem to get an even run on all 8 is to blank t...

Thanks everybody I ve fitted a secondry breather to relieve the negative preasure in the crankcase as sugested :D When I came to set the carbs up I realised the r/h carb was drawing a lot more air than the other side, I've blanked the breather off and she ran on all 8!!! Sunday job is to strip the c...

Thanks for that Denis but all leads are right and it has run on all 8 since the build? After reading through a few other threads 5 and 8 are fed from the same carb! Tied with this induction problem I m going to have another try this weekend at disconecting the breathers and setting the carbs up agai...

There is the two as described one to each carb but no other breathers fitted that I can see!

Hi Ron I think they are old P6 covers linked to the SU's through what apears to be a filter. The problem is I bought it as a non runner project which was in bits! Have you any idea why 5 and 8 are the only two that don't fire?

Hi all, I have an 86 efi engine fitted with twin su's. I've renewed all the ignition system but she is not firing on 5 and 8 all of a sudden! Theres a spark on all 8 plugs timing is correct but no joy until you rev hard. Today whilst trying to find the problem I took the oil filler cap out whilst sh...