Do it please Mr Raj.
Do it please Mr Raj.
lol @ the loads of people just waiting eagerly to see what happens with the new cam with more interest than raj. Hope it works m8.
Like said b4 its like a mini series that went bigger........Come on raj
for gods sake raj get on with it
we need some background music to add some suspense... lol
...the suspense is killing me! Huuuuurry up!
Whats happening Raj???
raj, dont upset your viewers, theres gonna be public outbursts and rioting soon
New poster! (less than 10 posts)
omg jus spent ages reading this the suspense is crazy jus want to know what happened!
hope uve got it sprted Raj.
i agreeOriginally Posted by BriC
obviously stalling cos its still not working and the cam aint the problem.... shoddy workmanship if you ask me.
a part that you were missing eh?? maybe the reason why it didnt idle
not at all, it's just the idle speed control valvea part that you were missing eh?? maybe the reason why it didnt idle
so how did the engine idle after i'd built it with the same cam in?
I fear the worst mate, if I'm being honest; ie, that the cam you've removed isn't the root of your problemHope I'm wrong though
Hope it's all now tickity boo mate. If not, perhaps ya man Sparkie there needs to cast his hairy hands over your engine again?
if scoff and co cant sort it, i doubt my 'hairy hands' will have the sparkle to perform miracles.
Still no joy then Raj?
Feck knows but i've still got my fingers and toes crossed.......COME ON MY SON!!!!i "think" ive found the problem..!!!!!
scoff.. dont shoot me down as you did mention this when you was round
what actually made me take the head off AGAINwas i remembered seeing the squish area machined.! which made me think "has it been fettled with in other areas!
so im thinking ive found the cause of the idle problem
just got to put it back together after ive roughened up the inlet ports
so the question is.. What grade sand paper should i use to do this? and should sand the ports in an in/out motion or left/right.?
what a feck around
Just pour some sand into the carb
Raj i wouldnt use sand paper mate, a bit of emory cloth should do the trick i would have said, you wont have to worry about leaving sand behind?
What about a dremmel?
How is a smooth inlet tract gonna stop the car from idling?
Personally, I just wanted to see you pour sand in your carbthat'll prolly smoothen them off even more
now go back to sleep
Something to do with the inlet ports not mixing the air and fuel enough (Atomising- not sure thats the right word)
Its basically sand paper but a bit courser and doesnt leave the paper, its red in colour?
Never heard of that mate
http://www.halfords.com/webapp/wcs/s...egoryId_165610
Have a butchers at this, you can get it on a roll which is easier!
It was a rhetorical question mate.
Atomisation initially (and in the majority) takes place in the carb venturi & inlet manifold throat/headers.
errr, ok are you saying the head you have on has no squish area?
isn't that the infamous gr.A head mod?
Part of the squish area can be removed if ya trying to lower the c/r (after a head-skim for example), so nothing abnormal there.
Again, I fear you're barking up the wrong tree
just a thought raj me old mukka.....do you have the water pipes connected up to the inlet manifold heating element?
how smooth are your inlet ports? - shiny as in mirror finish, or are they still matt finish, with faint scratches in across the runner...not lengthways down it.
how well do your gaskets/manifolds match that fancy head?
You might want to check your combustion chamber volume now that it's apart, standard is 43.4cc.
i would have said your runners are fine.
what happened to "its a totally standard cylinder head" raj
Can someone point out too me the machined part on the head as i cant recognise it please?
the top and bottom of each chamber in that pic chris, there's normally a flat ledge. google-images squish or quench area, better than someone trying to describe it.
Thanks for that Scoff, this is getting more confusing as time goes on!
so basically, nothing appears to be standard on this engine at all?
what next N/A 1.1 pistons, cos you wanted to save a few bob?
http://www.cosworthvega.com/cc_an_engine_GEC.html
I use a syringe coz I'm cheap
Hello?? Am I the only one here not grasping the fact why the head/runners are causing the engine to not idle?
that was one of the 1st things I discussed with raj when I visited, I don't think they're smooth enough to worry about, maybe not ? he told me they were standard / not polished.
I think the head inlet ports/tracts would have to be super polished/mirror finish before you could possibly point the finger at them for causing a cr8p idle, but even then I'm not totally convinced, as, as mentioned earlier, the majority of fuel atomisation takes place in the venturi/inlet throat/manifold.
Maybe on an efi setup, where the injector(s) is nearer to the inlet port(s), then it's feasible, but I can't see it on the gtt's carb'd setup, not when there's a fair 'distance' between venturi & head ports for the atomisation to take place.
I might be completely wrong, and I hope I am, in that you finally get your engine running properly, but I do personally think you're barking up the wrong tree with this one.
well, yeah, your right ofcourse mart but trust me, when you hunt around that engine you'll be grasping at straws just like I was
if you are not 100% . then have it cleaned up . ie not a full skim . just a clean. to be safe .decided not to re-fit this modded headthis probs gone on far too long
so! im just in the process of cleaning up/lapping valves in etc a std head ready to fit
i just hope for the sake of the 5that the modded head was the problem! knowing my luck it wont be
just a question regarding fitting this std head..- how can i be 100% its flat.? im not confident with a metal ruler etc. just wondering,do places that skim heads offer to check a head for flatness?
M8 i'm over the moon for ya.......Also pleased this story has a happy ending unlike some series's.......Happy boosting dogg
good to hear m8!
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