Joined
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5 Posts
Hi All
Just finished a complete rebuild of my 2003 outlander engine) after an overheat. got a recon head ( The one I took off as it was badly overheated so it was scrapped). Bottom end hone, new pistons bearings etc. Everything went smooth measured in spec, used high-quality gasket kit and new head bolts which were torqued according to the manual which matches the instructions received with the bolts, the timing is all spot on, new plugs, water pump, and started up on the first crank. No leaks etc.
It sounded like I had a vacuum leak, so I started trying to find the missing pipes that are normal after a rebuild, found the brake booster, which I promptly attached and the car was still rough.
I was about to get new plug wires but thought I would give it a compression test to rule out anything internal.
It looks like I have a major issue with cylinder 1 which is reading 50psi compared to all the rest at 175psi.
I have checked all rockers the valves all seem to be behaving. Borescope confirms that all the pistons still look new i.e. no valve conneciton.
The head gasket could only go on one way, deck and head were both flattened before the build as well. All cylinder head bolt holes were checked before the head was installed to ensure there was nothing preventing the bolts from easily threading to their max depth.
What am I missing?
Just finished a complete rebuild of my 2003 outlander engine) after an overheat. got a recon head ( The one I took off as it was badly overheated so it was scrapped). Bottom end hone, new pistons bearings etc. Everything went smooth measured in spec, used high-quality gasket kit and new head bolts which were torqued according to the manual which matches the instructions received with the bolts, the timing is all spot on, new plugs, water pump, and started up on the first crank. No leaks etc.
It sounded like I had a vacuum leak, so I started trying to find the missing pipes that are normal after a rebuild, found the brake booster, which I promptly attached and the car was still rough.
I was about to get new plug wires but thought I would give it a compression test to rule out anything internal.
It looks like I have a major issue with cylinder 1 which is reading 50psi compared to all the rest at 175psi.
I have checked all rockers the valves all seem to be behaving. Borescope confirms that all the pistons still look new i.e. no valve conneciton.
The head gasket could only go on one way, deck and head were both flattened before the build as well. All cylinder head bolt holes were checked before the head was installed to ensure there was nothing preventing the bolts from easily threading to their max depth.
What am I missing?
...J.D.
