beware teflon on your blower

just passing on some info here....we run a kebelco blower that has round teflon end plugs in the rotors...in the last 2 races we have dropped valves!!!!!!..well found the calpert it was the end plugs comming out and falling into the intake runners....on the back end frame at the bottom there is a place there for the plug to fall out..just beware..also talked to Tom Conway at the race and he also told me if you run 10 deg. locks your on borrowed time till a big failure..his hooked me up with the new thing 8 deg locks and retainers..hope this might save a racer..Dave Lowe
www.myspace.com/daveloweswr

 

Dave check your p/m

 

I run a Screw so the teflon wont be a problem but I have ran 10 degree locks and retainers for years and have never lost a valve, I do keep a close eye on my valvetrain but have never seen anything wrong either.

 

Hey guys just talked to the KING of blower repair..Andy at littlefield's he said I can leave out the plugs...might loose 1/2 # of boost or use a 15/16 soft plug and use some silicon on them...1/2# verses valves=leave them out..Dave
p.s. it nice to see people that work on this stuff as in Andy at Mert's that read our posts.....thanks Andy
www.myspace.com/daveloweswr

I might add>>> today putting back on my hi helix littlefield....ebay here I come .....selling the kebelco

 

Are you talking about the plugs that close off the end of the rotor lobes?

 

Always read, been in to many controversies to answer.

 

plug

i dont buy that plug coming out of the roter you must have some big end play, my 2 cents

 

Don , this is the part I dont buy ?? someone is confused
also talked to Tom Conway at the race and he also told me if you run 10 deg. locks your on borrowed time till a big failure..his hooked me up with the new thing 8 deg locks and retainers..hope this might

 

i run 10 deg looks.with the new psi springs 485 on the sets, i think you are right, but then MSD told me not to run a 44 amp mag on alk motor but look. thay all run them now .

 

10° Valve Locks ???????????????????????????

There are many types of valve locks. 10°, 8° (SUPER SEVEN), 7°, 8° Top Locks, Radial Bead, Conventional bead, 12° Liberty Locks Bead Locks, multi bead locks, and many more. Each is correct in its own application and each has advantages and disadvantages and millions, of each, have been produced over the 100+ years of internal combustion production. Used correctly each and every one of them will function correctly.
Personal preference comes into play and we all have opinions about the product we purchase for our race cars.
To say that everyone should switch away from the 10° design (to save the racer) is quite a statement.
If you have questions about the proper way to use a lock, I would suggest making a call to the designer and manufacture of the part. Comp Cams, Manley, Crower, J.T. Stewart, Manton, Crane, Sig Erson Cams, Bullet Cams. CV Products, Del West, and I have left out many. Any one of these company’s understand the function of a valve lock and can explain why you may be having a problem and how to fix it.
By the way, the 10° lock was patented by Comp Cams in the early 70’s. They have produced 10’s of millions of these parts and they still work very well 35+ years later.

My personal preference is completely different.

Noel Manton

 

Valve Locks

Go Noel!
A lot of people seem to forget that there are literally hundreds of engine combinations out there that are running and I might also add, running successfully. Having so many part options available and so many different kind of engine combinations should tell us that there are probably no "single solutions" to our problems.
Telling us about valve locks, stating that we will all "die and go to hell" if we don't switch from the 10 degree locks is stating a very bold statement. I would certainly believe that in Dave's case he has tried them all and found that the 10 degree locks will eventually kill his motor. In my or your case it may or may not.
Noel kind of said it all when he said that the 10 degree locks have been used for nearly 40 years now. They must work for someone!
Please, take this opinion as "my two cents". Most of you here have been doing this a lot longer than I have.

 

SoDak...yes the end plugs!!!
D Johnson...this blower is new...no end play!!!!
if anyone thinks that this is just b/s I would be happy to put some pics of the leftover button that was under the intake valve...if you have the teflon buttons and like them then leave them...myself I wouldn't fire a motor in the pits with them in the ends of my rotors
I'am not trying to convince anyone here whats right and whats wrong
I just hate to see a fellow racer have a problem that maybe avoided. I wish I could have found this out from some fellow racer and 3 valves ago oh and yes 3 heads alsoDave
www.myspace.com/daveloweswr

 

plug

my rotors have stell plugs in each rotor and ther is no way it can come out dont know the type of rotors you have. not saying it did not happen to you.but i never heard of it. as far the 10 deg looks i doubt thay are a problem. and who is tom conway. sorry dont get on the tire

 

MERT
I think I should take your stand at this point in this conversation.

 

might happen

heck DJ YOU MIGHT WANT TO KEEP THE RODS IN THE MOTOR BEFORE YOU GO LOOKING FOR ROTOR PLUGS OR 8 DEGREE LOCKS. yOUR BLOWER WOULD HAVE STEEL PLUGS BEING AN OLD LITTLEFIELD WITH CAST ROTORS WHAQT ABOUT EDDIE PARKER DIDNT HE MAKE A RUN!!!!!!!!!!!!!!!!!!!!

 

teflon end plugs

My blower had the end plugs made out of white teflon, after about 25 runs they were literaly eaten by the front end plate of the blower. This was because on the superman type blower the plugs are exposed for part of the time as the rotor clears the front cuts. This was resolved by JR at RBS he sent me a set of BLACK NILATRON those are stronger than the white ones. Also I instaled then with locktite glue and also made threads on the plastic for the small screws.

On the retainer I had many failures with the standard 10'lock and lash cap about TEN years ago switched to MANTON lash locks NEVER a failure. Also the halves need to be kept as a pair with the valves for then to be perfect. AH just a thought that first set I got are on my cousing bracket engine after ten years.........

hope this helps anyone

 

my littlefield has steel soft plugs in them with never a problem..my kebelco has round teflon caps in them...as for the 10deg locks I have ran them with never a problem run the manton lash locks and love them
as for who is Tom Conway...just ask on here he is one of the best alcohol tuners around,,the late Shelly Howard the Harker girls and proble 100's more..Dave
www.myspace.com/daveloweswr

 

Mbaker3 and JP....good posts and JP you have a # I can give you a call on? Like to ask you about the screws you used and were to put them..GREAT idea..Dave
www.myspace.com/daveloweswr