Tom Foster

hi all a bit of a problem after getting my cars engine rebuilt buy and maped. i started getting tgv problems. so i looked up on how to delete them so i manage to get a delete kit. from icp with all gaskets ect i removed the inlet and got it resprayed thought i might as well seems iv got to remove it to get to the tgvs .and then refitted every thing .for some reason the car wouldn't start very easy when it did it ran crap now wont start at all .so had it towed to local garage they say its got no compression in any cylinders .i just think thats a bit odd .any idears

rsjohn

iTrader: (3)

Did you take it back to the garage that did the engine rebuild or even contact them?

JDM_Stig

iTrader: (3)

Loads of questions about paint where gaskets fit, were new inlet gaskets used ?
You don`t just loose compression by removing and refitting the inlet manifold.

TECHNOPUG

iTrader: (1)

Everything points to an issue with refitting the inlet manifold/painting, as you suggest, as that is the only part that has been touched.

stockcar

was it bead blasted clean by any chance??

if so its possible grit has remained in the manifold and contaminated / damaged the bores when started............

Jay Cartay

iTrader: (3)

Exactly what's recently happened to a friend of mine and my first thought.

imprezagaz

iTrader: (2)

Tom Foster

UPDATE my local garage looked in to the bores with a cam and found that all of them are badly scored ?
yes the inlet was blasted and repainted but was cleaned out be for being refitted .and was never run after (coundant get it started thats why i had taken it to the garage )

Jay Cartay

iTrader: (3)

He thought his was clean too... Trying to start it could have scored the bores if media was present, surely?

BrownPantsRacing

iTrader: (6)

Ouch. Sorry to hear this, That's rough.

rsjohn

iTrader: (3)

Surely if there was media in the inlet it would only be a small amount and would still start initially
And surely it wouldnt loose all compression just like that or does it have some still?

JDM_Stig

iTrader: (3)

Exactly

Tom Foster

I did manage to get it started advenchaly after I fitted the inlet but was trying for ages to start it just kept turning over .there is some compression not a lot between 10 to 20 psi

rsjohn

iTrader: (3)

Even if the bores are scored, i cant see how it would lose compression unless there was that much media in there its clogged the rings - and even then i think its highly unlikely.

Have you checked the cam timing is correct?

merlin24

iTrader: (1)

Good chance the blast medium is stuck around the inlet valves/seats and not allowing the valves to close onto the seats,hence almost zero compression.

rsjohn

iTrader: (3)

Did the OP ever get to the bottom of this?