No Start After Head Gasket Replacement

rstewart4328 · Post by **rstewart4328** » 14 Jan 2015, 12:49

I reconnected the one ground strap that I removed from the head and the 2 grounds that connect to the coil bolts. I just put 4 more gallons of fuel in it. I can feel the fuel pump relay under the dash clicking. I just cranked it and plugs are wet and smell like gas

draser · Post by **draser** » 14 Jan 2015, 12:53

Do you know what compression was before replacing HG? You have a large differential between cylinders, I'd look into that first.

vmaxmike · Post by **vmaxmike** » 14 Jan 2015, 15:19

I just recently did a successful HG replacement on my 02 s60 w/o any cam locking tool but did carefully mark sprockets, belt and both cams front & back to ensure all went back exactly as it came out! Wondering did you remove either sprocket from the cam and possibly not bolt back on in same position? I suppose if it's cranking normally with no interference, its not possible the cams might be installed incorrectly. Does it immediately try to fire then die upon first crank?

rstewart4328 · Post by **rstewart4328** » 18 Jan 2015, 14:44

I'm not sure what the compression was before I started taking it apart. It seems like it actually starts for about half a second and then dies out.

draser · Post by **draser** » 18 Jan 2015, 17:07

Not sure how your timing marks are on sprokets, so I'd look at the slots in the camshafts at opposite end to make sure they're horizontal.

vmaxmike · Post by **vmaxmike** » 19 Jan 2015, 15:27

I'm still having a hard start issue after my HG replacement where i have to crank for 5 seconds or more before it starts. It does the immediate sputter then dies if I release key so I just keep cranking. Almost like fuel pressure is down but once its starts, it stays running. I'll post a separate topic for help on this with more details soon.

Craigd2599 · Post by **Craigd2599** » 02 Jul 2015, 12:35

rstewart4328 wrote:Also, here are my compression readings. Considering I don't have any cylinders with no compression I believe that the cam timing is fine. Seems like if any valves were open at the wrong times, it would have no compression.
#1: 145
#2: 115
#3: 120
#4: 160
#5: 150

Did you replace the head bolts? They stretch when you blow a gasket. Also 2 and 3 are considerably lower than the other 3. You might have a warp between those two cylinders and that's where the compression loss is