dansti300

had some new valves fitted to one of my heads don t think there seated correctly as car will not start can heads be taken off without removing full engine so as i can get the valves seated if needed
thanks dan

500

Nope, you can't get the heads off without taking the engine out sorry.

Are you sure it's the valves not seated as it would only cause probs with one or two cylinders, it may run a bit on two.

dansti300

dont know had it started with power start spray went perfect for bout 10 sec up 2 thou then dies will not restart

my engine blow a con rod so i bought a close deck block short engine had valves done on the one that rod snapped also done ecu check engine light test with black connectors under dash no fault found any ideas before i remove engine again
cheers dan

34srm

sounds like no fuel getting to engine

dansti300

when fitted engine had fuel pipes wrong way round turned it over bout 6 times then noticed then put them on right could this have caused any issues. fuel getting to inlet to engine
cheers dan

danc

I'd do a compression test before going further...

Jolly Green Monster

iTrader: (4)

do a compression test to confirm valves are seating..

I would suggest cam timing.. check the cam belt.. make sure you use the little mark on the crank wheel not the arrow.

Simon

dansti300

i will do one thursday after work what should it read on compression test rechecked timing today have used little mark on crank pulley in uprite position
cheers dan

500

155 - 170 PSI iirc all should be within 10%

dansti300

k cheers if the test is ok have you any others ideas what my cars problem could be
thank dan

Jolly Green Monster

iTrader: (4)

all four being very similar is the main thing..

danc

as you prob know do the comp test with the throttle wide open......
then a simple switched live feed to the starter solenoid will do the trick... no need to have the ignition on



if all 4 readings are near equal.. and not excessivly low
then it has to be either ignition or fuel related.... a case of narrowing it down

dansti300

will let people know the out come tom fingers crossed

Jolly Green Monster

iTrader: (4)

the other easy thing to do is get the left and right bank muddled as they are labelled from sat in the car not looking into the engine bay.. as the cams and cam wheels interchange but won't run unless correct, they also interchange between inlet and exhaust.

Simon

dansti300

done compression test the readings are as you stood in front of car starting from drivers back
140
140
80
110
the two are they ok the other two must have also been damaged my own stupid fault should have got them checked aswell at same time but no rod on that side snapped timing must have jumped or somthing
gonna remove engine again friday tea take heads sat morning hopfully get them back monday tea and refit the bugger
cheers dan

Jolly Green Monster

iTrader: (4)

charge the battery and check them in the opposite order.. you might find the battery was getting low.. just to be sure..

dansti300

hi had jump leads on car from my van while doing the test battery did not go flat just tried again in opposite order same reading had a look at my three remaining piston two have two small dents on top from valve so valves must be bent in my other head?
thanks dan

Jolly Green Monster

iTrader: (4)

oh damn.. but always good to check

merlin24

iTrader: (1)

Although the comps are down on 2 of the Cylinders,80psi is enough to fire the
engine but it will run rough/lumpy.
I would find out why it wont run first( prob. lack of fuel if it runs on easy start) and then pull the Heads and sort out the valves.
Tight Valve clearances will also affect the compression readings.

Mick

dansti300

had it started with power start sounded good for bout 10 secs then ran rough and finely cut out
cheers dan

Jolly Green Monster

iTrader: (4)

is it also not possible the rings aren't sealed yet.. this is a new engine?

dansti300

no second hand close deck block with 30.000 on it all been checked spot on short engine the heads are mine from my old engine had a look at my old pistons and the two from n/s/f have two small dents in them from valves in either corner
cheers dan