400ci small block fuellie heads which cams should be used

Well they have used excessive force or something.
Anyway. We messed up the valve setting ( clearance) as well. Now doing it properly ( gone is the noise)
Now fiddling with the edelbrock carb ( which seems to be italian)
But the car goes as hell very controlled!
We have a car baptizing to attend Sunday!
 
And the guys where under a lot of stress.
All is fine now.
Powerband works pretty good with the th350!
 
Im very glad you got some of the BUGS sorted out and corrected!
and that it sounds like no permanent damage was resulting from mistakes made!
we all make mistakes its part of the learning process,
the trick is to avoid as many as possible by simply asking detailed questions and understanding the answers,
or asking new questions any time your not doing something,
you have not done successfully before many times
 
Grumpy said:
I can,t even imaging anyone DUMB enough to use a HAMMER on a torque converter, to get it to slide back onto the trans input shaft!

we all learn by making mistakes!
but that should NEVER be repeated.

the first few rule's of GRUMPY'S engine assembly
Click to expand...

The students jumped right to rule #8.
(8) If rules 1-7 are not working, f**k it and use a BFH!
 
It was just as much my fault.
You can't run a business check the clients cars and check what the students are doing....
 
Id suggest you tell your students , that its a well documented FACT,
learned the hard way by thousands of people every year,
if you resort to rule #8 I can assure you in the long term it will cost you,
many hundreds of wasted dollars and uncounted extra delays and,
dozens of extra trips to the machine shop, over the following decades
 
Last edited:
Arjen said:
It was just as much my fault.
You can't run a business check the clients cars and check what the students are doing....
Click to expand...
It's most likely not all the students that would do something like that, it's probably just one or two of them.
 
Look these things happen.
Anyway. The correct way of setting valve clearances( engine at idle ) is " ticking " sound and then 1/4 turn back , right?
We still had tapping noises .and then adjusted them but now my idle has gone.... and I have detonation so probably to tight now.
 
Arjen said:
The correct way of setting valve clearances( engine at idle ) is " ticking " sound and then 1/4 turn back , right?
Click to expand...
- Loosen until you here clicking.
- Tighten slowly until the clicking just stops. [Make sure you are not leaning on and applying pressure to the rocker with your tool.]
- Tighten an additional 1/4 to 1/2 turn more.
 
- Loosen until you hear clicking.
- Tighten slowly until the clicking just stops. [Make sure you are not leaning on and applying pressure to the rocker with your tool.]
- Tighten an additional 1/4 to 1/2 turn more.
Click to expand...

thats the most dependable and consistent route for most guys too get the hydraulic lifter preload correct
 
Right we need your opinion on the following:

Before: engine smooth ; burnouts; 200 miles ( and a messed up trans) ;
After setting valves :
No more capacity to middle low; driving of : engine stalls ; idling for a while then the engine dies; revving engine at idle turning of ignition = detonation/ the thing runs on itself....
Valves too tight?
Set at this way ( not your way I know but I wasn't involved) ticking 1/4 ,turn ; engine off then another 1/4 turn...
Any suggestions ..
 
Oh and the occasional backfire on idle.
Driving and high revs = no problems
Low revs and driving away = bloody thing stalls
 
Arjen said:
Oh and the occasional backfire on idle.
Driving and high revs = no problems
Low revs and driving away = bloody thing stalls
Click to expand...
Accelerator pump problem.
With the Edelbrock Carburetor most likely the wrong power piston springs, metering rods, & Primary jets are being used in your engine combination.
 
I wish I was on location, its FAR easier to isolate and test the problems with experience and hands on, skills.
I think your valves are too tight , the ignition advance curve may not be correct,
and as previously mention,
you may need a bit more accelerator pump volume from what you've stated
check the carb float levels and look for vacuum leaks loose hoses and loose electrical connectors and check firing order carefully.
do a compression test
sun-cp7827_w.jpg

you might have over tightened a valve and bent it on a piston
check the cam lobe lift with a dial indicator
dialinc2.jpg

Slide-81.jpg


pro-66830_cp.jpg


checklifter3.jpg

you might have had a cam lobe fail.

worn1.jpg

worn2.jpg

worn3.jpg

http://garage.grumpysperformance.co...ng-piston-to-valve-clearances.399/#post-74297

http://garage.grumpysperformance.co...rect-custom-length-pushrods.14241/#post-72346

http://garage.grumpysperformance.com/index.php?threads/acceptable-lobe-variation.13654/#post-70348
 
Last edited:
Q-jet will give the best gas mileage after carefull tuning.
Need all the tuning parts.
Be hard to come by in Belgium.
 
You must log in or register to reply here.
Back
Top