Originally Posted by
nrm1977
I've been having a issue in which I'm going through glow plugs pretty fast in my nova 4btt. I'm using the c6tgc plugs. Does this mean I'm running my engine to rich? The plugs seem to have caster oil on them....dark color but, the residue comes off if I wipe it. Any thoughts guys?
On a side note- I've seen people running the 4btt 3.5 turns out HSN and 4.5 turns out on LSN....In which I cant even come close to that on LSN...4.5 turns out it lean bogs insanely. Idle is set .6mm.
I am going throught the same thing. At 4.5 on the lsn, 3.5 on the HSN, it lean bogs bad on the bottom but on the track 3.5 is pretty rich on the top with not much RPM's. So I lean the top a few hours just to get it somewhat crisp, not completely race tuned and still a tad bit rich. So I am about 3.25 on the HSN. At 4.5 it will not run and lean bogs bad and gets over 300 pretty easy. I have to run mine at 5.25 turns out on he LSN to keep it from bogging. Brand new tank, line, all clutch parts, gaskets, etc..... It still runs 290 all the time, but I really could care less as there is smoke. Bearing tests pass with flying colors. I guess I will run it at those needle settings. It is nice and crisp and does not flame so I guess I will not worry about getting to 4.5 on the LSN. I am glad I am not the only one.........
