headers
George Harmuth | 1 Jun 2005 20:43
Picon
Favicon

Congrats to new F500 driver - winner

Just want to welcome a new driver and race winner to the F500 group. Joe
Wolf Jr. from New Windsor, NY had a good day on Saturday at Limerock. He
won the F5 class regional race and completed his second race for his SCCA
licence. Joe drives an Invader and I believe he said he lurks here from
time to time.

Welcome to the class.

mike
Zink 440
Permalink | Reply | 0 comments |
headers
Chas. Schlismann | 1 Jun 2005 23:16
Picon
Favicon

Bog again

Our bog is back, worse than ever and I'm having difficulty diagnosing the cause.  Everything is the same as
last year except we installed a rebuilt 494.  Some notes:

WOT after turns rpm's drop BIG time, actually seems to improve somewhat when fuel level is lower  (though I
may be compensating by adjusting my driving).  Top end seems to be OK.

Tried richer and leaner and needle position changes. No effect.  Carbs are clean and appear to be
functioning fine.

Swapped primaries and belts.  Tension, alignment and clearance is ok. Secondary seems ok.

Electronics were replaced last September.

Crankshaft seal had oil under it one time, looked absolutely clean all other times.

Guess I could put a surge tank in the fuel line but it seems to be better when the cell is low. I was trying to
avoid Marilyn putting a tired engine in to see if the problem is there.  Any other thoughts would be greatly
appreciated.  TIA, Charlie 

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com
Permalink | Reply | 1 comment |
headers
MMauneyJr | 2 Jun 2005 00:21
Picon
Favicon

Re: Bog again

In a message dated 6/1/05 5:21:01 PM Eastern Daylight Time,
racegt6@... 
writes:

> Guess I could put a surge tank in the fuel line but it seems to be better 
> when the cell is low. 

You didn't mention the fuel pump - have you tried swapping/rebuilding it?  
Have you checked the vacuum drive line to the pump (it could be leaking).

You didn't mention float level - if they were set too low, you could be 
emptying the bowl enough to go dry at WOT when you straighten out.

Also, you might want to check the fuel line itself.  I had a problem recently 
with a hairline crack in the line between the tank and fuel pump; fixed it 
and my bog went away.

Good luck....

MM
Permalink | Reply | 501 comments |
headers
Richard Schmidt | 2 Jun 2005 00:23
Picon
Favicon

Re: Bog again

This sounds familiar, this happened to me once, twice, or more.

It's either clutching or fuel.  What RPM does you clutch engage ?  What max
RPM are you getting ?  What are your EGT readings ?

Richard

----- Original Message ----- 
From: "Chas. Schlismann" <racegt6@...>
To: <f500@...>
Sent: Wednesday, June 01, 2005 4:16 PM
Subject: [F500] Bog again

> Our bog is back, worse than ever and I'm having difficulty diagnosing the
cause.  Everything is the same as last year except we installed a rebuilt
494.  Some notes:
>
> WOT after turns rpm's drop BIG time, actually seems to improve somewhat
when fuel level is lower  (though I may be compensating by adjusting my
driving).  Top end seems to be OK.
>
> Tried richer and leaner and needle position changes. No effect.  Carbs are
clean and appear to be functioning fine.
>
> Swapped primaries and belts.  Tension, alignment and clearance is ok.
Secondary seems ok.
>
> Electronics were replaced last September.
>
> Crankshaft seal had oil under it one time, looked absolutely clean all
(Continue reading)

Permalink | Reply | 0 comments |
headers
Charles | 2 Jun 2005 16:09

RE: Bog again

-----Original Message-----
From: f500-bounces+charles=midwestwirechicago.com@...
[mailto:f500-bounces+charles=midwestwirechicago.com@...] On Behalf Of
MMauneyJr@...
Sent: Wednesday, June 01, 2005 5:21 PM
To: f500@...
Subject: Re: [F500] Bog again

In a message dated 6/1/05 5:21:01 PM Eastern Daylight Time,
racegt6@...
writes:

"You didn't mention the fuel pump - have you tried swapping/rebuilding it?"

  New Facet-o-lator clicker pump installed in Sept. and seems fine (I'll
measure pressure and volume this weekend).

"You didn't mention float level - if they were set too low, you could be
emptying the bowl enough to go dry at WOT when you straighten out."

  My first thought, level checks ok and car was fine on the nearly 1/2 mile
straight at Memphis.  

"Also, you might want to check the fuel line itself.  I had a problem
recently with a hairline crack in the line between the tank and fuel pump;
fixed it and my bog went away."

  Replaced fuel lines and filter after practice, didn't help.

"Good luck...."
(Continue reading)

Permalink | Reply | 503 comments |
headers
dtm | 2 Jun 2005 17:00
Picon

Re: Bog again

this seems to be problem that pops up on this list once in a while,  you 
have single or dual floats in your carbs and is there anything else 
installed in your bowls?
dan
----- Original Message ----- 
From: "Charles" <charles@...>
To: <f500@...>
Sent: Thursday, June 02, 2005 10:09 AM
Subject: RE: [F500] Bog again

> -----Original Message-----
> From: f500-bounces+charles=midwestwirechicago.com@...
> [mailto:f500-bounces+charles=midwestwirechicago.com@...] On Behalf Of
> MMauneyJr@...
> Sent: Wednesday, June 01, 2005 5:21 PM
> To: f500@...
> Subject: Re: [F500] Bog again
>
> In a message dated 6/1/05 5:21:01 PM Eastern Daylight Time,
> racegt6@...
> writes:
>
>
>
> "You didn't mention the fuel pump - have you tried swapping/rebuilding 
> it?"
>
>  New Facet-o-lator clicker pump installed in Sept. and seems fine (I'll
> measure pressure and volume this weekend).
>
(Continue reading)

Permalink | Reply | 0 comments |
headers
John Engstrom | 2 Jun 2005 17:30
Picon
Favicon

RE: Bog again

Do you have a known good secondary you could try?  If the secondary clutch 
is worn it's possible that it's getting stuck in the open position 
(especiallly with the high Gs in a turn) and keeping you in way too high a 
gear.

John Engstrom
Plano, TX
Permalink | Reply | 0 comments |
headers
JOE PALMER | 3 Jun 2005 04:01
Picon

Agienapolis Report ?

Our friend Mr. Gill is way to busy studying to write-up the weekend report
from College Station, TX.  However, I count no less than three other F5's in
Mr. Adams' photos.  So . . . one of you Dolphin Motorsports guys or the
mystery Red-Devil driver care to share how the weekend worked out?

Thanks,
Joe
Permalink | Reply | 0 comments |
headers
Barron, Federico | 2 Jun 2005 18:13
Picon

440cc manual

Hi,
I'm a mechanical engineering student at the University of Texas at Arlington.
I have a project to rebuild a Kawasaki 440cc engine and I was wondering if
anyone would know where can I find a manual for that engine.
Thank you,

Federico Barron
Permalink | Reply | 1 comment |
headers
JLWOLF1 | 2 Jun 2005 04:59
Picon
Favicon

Congrats to new F500 driver - winner

Thanks Mike (So much for keeping a low profile).  Thank you for your help at 
the track.  I would like to say that there sure are a lot of nice people in 
and around the F500 class.

A special thanks to "Q" for putting up with my questions and turning around 
my parts (He is a god with respect to these cars).  Thanks to Ernie in Red Hook 
who has been a great teacher in the art of the Rotax and other track tricks 
to keep on running.  And, to Paul from the CFC class who is always willing to 
discuss the race line with me.

Thanks to everyone who has helped me over the past couple of months.  There 
are many.  

Regards,
Joe
# 30
Permalink | Reply | 0 comments |

Gmane