CVH won't start!
 

Hi Everyone,

I'm having problems getting my engine to start...My setup is a 1.8CVH with ZX6R carbs, Bogg bros manifold, ZX6R fuel pump and Megajolt ignition.
The engine has been stripped, cleaned and rebuilt, the carbs have also been cleaned and rejetted.

At the moment I'm trying to get it to fire running with just EDIS in limp home mode but having no luck. The engine turns over fine both by hand and with starter. If you try starting with full throttle it comes close to starting with quite a bit of smoke, however if you put on the choke the engine emits loud bangs similar to a backfire and the air and fuel mixture occasionally hiss back out of carb trumpets.

All plugs are new, sparking correctly and have correct gaps, timing is fine, all ignition leads are new and are on correct plugs and fire in the right order, crank sensor wiring is okay as are all engine/head earths.
I've taken the carbs off and all inlet ports are wet, as are the plugs in cylinders 2,3 and 4 but NOT in cylinder 1.

I'm at a loss as what the problem is... does anyone have any ideas or suggestions?

Cheers,
Nathan

Pull the plugs and dry them at 100C in the oven

leave spark plug holes to elements to flash of fuel in bores.

Whilst they are out spin the engine on the starter in 10 second bursts of 10 on 20 off for 3 mins. (to fill up the tappets with oil)

Disconnect main fuel supply.

Buy some easy start

Test all plugs get spark

Refit plugs

Squirt 5secons of easy start past each throttle.

Try and fire engine, if it fires keep pumping in squirts of easy start.


If that does not sort it then the options..

1) your mechanical timing is out
2) your ignition timing is wrong ( chekc firing order)
3) your getting no oil preasure in the followers.
4) no compression

TT

Thanks for the reply TT, I'll give your suggestion a go!

As for the lack of pressure in the followers, how is that fixed?

And what might cause no compression?

Cheers,
Nathan

after a full rebuild or long period ofidleness it may take some time cranking to get good oil circulation and fill the tappets. During this time the engine may flood with fuel.

Lack of compression can come from 4 options.

1) Stuck open valve
2) Leak between head/HG/block
3) Stuck rings or general bore wear
4) damaged casting ( head,pison or block)

TT

Dont forget bore wash,

Bob

I clean my wild pigs every day.

;)

TT

Rob thats iRASHERnal thinking:p

Bob

I found my 1.6 cvh was a real pig to start in limp home mode. Once I had the megajolt connected and the timing was more advanced it started a lot easier. What jets have you got in the carbs at the moment?

Joke Battel time Eh...

Ok.. It's GameMon

TT

LOL ... bet you did not even think on that

Ok.. It's GameMon

TT[/quote]

Sow be it:)

Rob while we are arsing about with this thread this poor guy might throw himself off a bridge cos his car wont start:eek: :eek:

Bob

I think you should both "trott" on.

He's got info to go on, it will run if theres snout drastic wrong.

it's been chopped a bit :rolleyes:

but fuel + spark + air + compression = bang..

theres no snout we will get running.

TT

This is boaring:o

Butt out, your just hampering the progresss :p


TT

Can we get this thread BAC ON track now:D

Bob

dam, you have the last laugh you utter swine!!!

TT

No need to get naSTY:o

Hmm...I might plug the Megajolt in and see what happens then :) I'm not sure what jets are in there, I cheated and got the Bogg bros to service & set them up for me ;)

boggs should have done a good job.

i think you have probably flooded before the valves have got oil in the folowers.

dry out, and test on squirty fuel ')

TT

Sorry Nath .This is probably the most hijacked thread in history.

Hope you get sorted . I know how frustrating it can be;)

I think you guys are hogging this thread with your pigging humour :p

Dont listen to them nath they are telling you porkies.

Bob:)

Haha! Well it's provided us all with something to do :) Thanks ayjay, it will probably be something pathetically stupid that I've missed.

when one finds oneself i a situation that is stressful, one should take stock, relax, re-evaluate, and prepare a fresh approach

only when natural resource hand ingenuity has been exhausted should one resort to medical remedy.

at which point consult a physician for the correct oinkment .

TT

p.s.

if in doubt stick it back on the ESC-Hybrid

Thanks for the help, I'll see if I can get this engine started or then again pigs might fly...

Cheers,
Nathan

Hope you get it sorted, its a pigging pain getting it to fire :D

lets see if he finds out what's been hampering runnig today.

It may be something like a por konection


Keep us posted, I hate non runnign engines..

TT

At last it lives!!... Turned out after much investigation I'd wired the ignition coil pack the wrong way round from the EDIS module :rolleyes: A quick swap round and it started first time! :D

Thats what happens when you chop wiring.

Shank fully it was simple.

Good to know your up and running,

Tt

Snout wrong with it now:o

Glad you got it crackling into life:o :o

bob

Ayjay your getting as bad as that lot from over the border

Arfon

glad to hear you got it going mate. They can be a git to start that first time. I had problems with mine as well using the same setup but it was a thrust washer on the wrong way round that stopped mine!

this is a boaring thread with all your pigging humour:rolleyes: guys