Ferrari Forums banner

1 - 5 of 5 Posts
G

·
Discussion Starter #1
When I'm looking for a squ

When I'm looking for a squeak like that, I shoot alcohol onto the suspected part to see if the noise goes away(until it evaporates).

Maybe mix in a little silicone oil if you want the effect to last a little longer.
 
G

·
Discussion Starter #2
Hi Aaron,

I always put the


Hi Aaron,

I always put the reaction arm in with tension (365GTB4). Never gave it much thought as instalation was just the reverse of removal with about 1 1/2 - 3 turns of tension before the cross bolt would slide out.

Regards, JRV
 
G

·
Discussion Starter #3
JRV,

Thanks very much for “


JRV,

Thanks very much for “the answer”. Up until your post, I was unable to find any data – you made my day. (I also had no idea as to what to call that silly rod)

I got the Jaguar mostly back together last night (My wife wants her car back) so the Ferrari will go in for reaction arm tensioning and anti squeak goop on the front brake plates.

Have a great weekend!

Aaron
 
G

·
Discussion Starter #4
JRV,

Thanks very much for “


JRV,

Thanks very much for “the answer”. Up until your post, I was unable to find any data – you made my day. (I also had no idea as to what to call that silly rod)

I got the Jaguar mostly back together last night (My wife wants her car back) so the Ferrari will go in for reaction arm tensioning and anti squeak goop on the front brake plates.

Have a great weekend!

Aaron
 
G

·
Discussion Starter #5
Aaron,

The DCOE idle/progre


Aaron,

The DCOE idle/progression circuits are substantially different, by design than the IF3C carbs, as used on the BBs. On the DCOE carbs, it is possible to jet the idle mixture and transition mixture differently.

Typical DCOE idle jet notation: 45F6
The 45 number is the idle jet size.
The F6 is the transition jet size.
The idle jet doee have an effect of the transition mixture, though the transition hole (F6) has little effect on the idle mixture. This area of jetting takes a fair amount of patience and experience to get right.

I prefer to dial the idle mixture in first....
Say we choose a 55F11. We find that the idle mixture screw is in the middle of the range, and the mixture strength is "correct". However, we're too rich on transition. I can recall from memory which way the jetting changes, but for example only your new idle jet will be 55F8. Pierce will know which way the second number (F8,11, etc) goes to lean the transition.

As to the leakage past the enrichment circuit...Typical I guess, though two solutions come to mind.

1-Dissassemble carbs and inspect the seats where the enrichment pistons sit. Relap seats and/or pistons for a better seal.

2-Speak with Pierce about using a block-off plate to remove the entire enrichment circuit. I can't remember the details of this minor mod...though I did this on many Alfa engines 15 years ago.


Regards,
David
 
1 - 5 of 5 Posts
Top