Well we've been having trouble with the carb's on the 7k

or so we thought.

Finally got the motor in for a tighten down. It was suposed to

happen at 600km's and Craig's managed about 1400.

Okay our problem has been the motor is running rich

at the lower revs but leans right out over 3500rpm

 

When the rocker covers came off this morning you could

see the inlet valves weren't level with the exhaust valves.

It looks as if the wrong collets have been put in on the inlet.

 

As I left the mechanic he was removing the heads to

send to the engineering shop for them to fix.

Atleast it isn't costing as it was thier mistake.

 

Hopefully I can give a final report before I leave for Queensland.

gotta love workshops eh?

:D

 

if this is your only problem thats pretty good then :(

Well we've been having trouble with the carb's on the 7k

or so we thought.

Finally got the motor in for a tighten down. It was suposed to

happen at 600km's and Craig's managed about 1400.

Okay our problem has been the motor is running rich

at the lower revs but leans right out over 3500rpm

 

When the rocker covers came off this morning you could

see the inlet valves weren't level with the exhaust valves.

It looks as if the wrong collets have been put in on the inlet.

 

As I left the mechanic he was removing the heads to

send to the engineering shop for them to fix.

Atleast it isn't costing as it was thier mistake.

 

Hopefully I can give a final report before I leave for Queensland.

 

SO tell me how that is affecting your AFR's,spring pressure may be a little different but if the valve is still seating ,openeing and closing at the right timre then shouldn't make any difference.

Okay the inlet valves were sitting lower.Our thought was that the collet

was thinner. This wasn't the problem after all

The valves were made to suit the motor unfortunately someone

forgot to hardface the inlet valves. The engineer is makeing a

new set but it means another week without it.

NOW WE SHOULD GET SOME REAL POWER!

Everything says we should get 120+hp.

Just how much the + is we will find out.

Desperately trying to do the dyno before I leave.

sounds to me like you have the wrong needles in your carbs

Okay the inlet valves were sitting lower.Our thought was that the collet

was thinner. This wasn't the problem after all

The valves were made to suit the motor unfortunately someone

forgot to hardface the inlet valves. The engineer is makeing a

new set but it means another week without it.

NOW WE SHOULD GET SOME REAL POWER!

 

So they weren't sealing then ey,low comp ,low vacuum that sort of thing.

Nah! Actually it was the opposite.

They weren't opening properly.

I will have to get the mechanic to explain

it properly.

We also thought it was wrong jets but with

the inlet valves not opening properly it

sort of explains it

Edited May 18, 200620 yr by SLOTH Snr

Nah! Actually it was the opposite.

They weren't opening properly.

I will have to get the mechanic to explain

it properly.

We also thought it was wrong jets but with

the inlet valves not opening properly it

sort of explains it

 

Ok I'm confused now,more info please

Don't worry so am I

I will see exactly next week then I can explain better

Don't worry so am I

I will see exactly next week then I can explain better

 

Cheesr,I'm just trying to work out what exactly was wrong,because the engine was running already.

Ok we've got the car back.

The reason the valves weren't opening properly was

that they were that distorted that by the time they

came out the motor would hardly run.

Anyways its going pretty good.

We need to change the airfilters for trumpets.

Seems to have turbulance problems at the face

of the carbies.(I'm told this is not uncommon)

So we're down a little on power but compared to what

we have had its awesome. Shit loads of torque.

Over the next few months Craig will take it to Calder

legal street drags and do a dyno run so we can get some

real figures.

The motor feels extremely strong so my plans to

supercharge it and lower the dif ratio are still

looking the way to go. Next years project!

Edited May 28, 200620 yr by SLOTH Snr