Engine Problem

[alstarz88]

Hi

The on going saga continues with this car. the engine runs but only bank 1 or A depending on what you prefer. Only CELS i get are 300, 304, 305, 306 which are mulitple misfires, misfire 4, misfire 5, misfire 6 compression tested ok getting fuel as it drips out of header swapped coils with the other side no difference swapped cam adjust solenoid with other side no change. Has anyone got any ideas what could cause this and only affect one side

if I can fix this my 2 year project will almost be complete

Thanks for all the help so far

Ross

[yeeha68]

I had similar problem. I did all the same things you have done. Turned out to be a broken spring on the exhaust valve. I dropped the engine to fix it. Several pics here at www.nutrod.com

-k

Hi

The on going saga continues with this car. the engine runs but only bank 1 or A depending on what you prefer. Only CELS i get are 300, 304, 305, 306 which are mulitple misfires, misfire 4, misfire 5, misfire 6 compression tested ok getting fuel as it drips out of header swapped coils with the other side no difference swapped cam adjust solenoid with other side no change. Has anyone got any ideas what could cause this and only affect one side

if I can fix this my 2 year project will almost be complete

Thanks for all the help so far

Ross

[alstarz88]

Stripped head down over the weekend (still in car) stripped out cams and valve buckets and the valve guide assembly bit so I could get a good look at valve springs

There was no broken springs also gave each valve a good push each one moved but had a good amount of force to move it.

The hydraulic valve tappet thingys were very stiff and couldn't be pushed in a local garage told me that this can be rectified by putting in a vice and squeeze them in (carefully) which I have done putting it all back together on my next day off but has anyone else got any ideas

Ross

[yeeha68]

The tappets should be stiff. They are full of oil and you dont want them to dry out. If you empty them you should soak them in oil to allow them to fill up again. They need the pressure to correctly operate.

[alstarz88]

I understand that but they also needed to be free to install the cams

anything else that could cause one bank not to work

[alstarz88]

*******Problem Solved********

After stripping down 4-6 head and checking valves and springs I re assembled the engine even though i found no issues with it started it up and it is now running fine

work that one out

thanks for your input

Ross