Purple O'donnell plugs?
 

Hey Monty,
What's the verdict on the Purple O'Donnell plug you grabbed from me. Did you like it?

Re slotted screws, especially the cooling head one, I picked up a Profi-Tool by Hudy a few years back which is purpose-design for Nova head screws. It shouldn't cost more than $10, it's a 5.8mm tip that falls RIGHT IN the Nova's screw heads. Insert it in the whole, turn gently, TICK, there you go. One of the smartest ideas from Juraj, really (this and the spring pulling tool :nod:)


Hi Monty,

I have a question about sleeve pinching - what this essentially does is squeeze matter to reduce the inner sleeve diameter, right? But this matter has to be coming from somewhere... namely the outer side. Hence my question: once the pinching is done, the fit of the sleeve in the case can't be as perfect as before, which means the sleeve will be able to move (radially, at least) around (even if a tiny bit) or at least vibrate (as it should be kept in place axially by the plug insert), how much risk does this represent for an engine revving at 30Krpm?

Thanks :)

Regards,
Paul (still learning the ropes of IC engines... :smile:)

haven't been doing much running lately

i will try it soon boss ;)

lonestar ; in testing the sleeves resized by rayaracing (they were done very well) i did not notice any leakage in the area around the sleeve and the fit in the block . some even had a better fit after they were done by ray :)

Monty

ok - interesting - thanks :)

Paul

My speed is getting loose and i'll probably send my P/s to Rayaracing. change out the rod.


HOUSTON, not sure if you said it already but any news on DLC coating?

i thought the same thing before i had sent a few items to ray for a test resize .

the news is that the guy who is doing it is slow like molasses apparently :(

he has two cranks of mine to do . :tire:

Hi, whats the best pipe for a N21Bf running in buggy ? I already have an 086,2027,2035 and Jp4 i have only tried the 2027 and it didn't rev out much.

thanks

upon testing the dynamite 086hs performed the best on the bf limited :nod:

by a lot :nod:

i hear it works good but the rdl pipe gives it more top...but im goin to try the assotiated 2035 on it since that thing works on a lot of motors

easy now.
good things take time. sometimes long time "joe".

Rev

monty, just wondering... what's new with the P5XL compared to the old P5's?

want to get my Odonnell SS21 crank coated. let me know when you start taking orders.

Houstons Engine Service Novarossi Plus 4 takes 12yr old Cade Whitenton to the TQ and 1st place win in Intermediate 1/8th Buggy and TQ and 1st Place win in Intermediate Arena Truck at the Region 9 ROAR Offroad Fuel Championships August 1st.

Thanks for the Plus 4 in the buggy Monty. The motor is off the hook and still not broke in yet. That is two in a row with SMOOTH NOVAROSSI POWER!!!!!

Jon