Lifter noise solutions needed - (gasket improperly installed)
05-03-2012, 11:48 PM
#152
Former Sponsor
Checked the balancer as Bruce suggested, no rubbing going on there. Fired the motor up and brought it up to temp. I was diligent with the idle adjustment screw as it was warming up, and got a solid hot idle going. Great!. Decided to take it for a spin around the neighborhood, a short 10 min. drive. Car is driving fine, pressure and temp is good. Still ticking, but not getting that angry clacking like before. Rev it up to 3K rpms. All is good. Go up to 3.5K, no problem. Last one for the night, try 4K. As the tach sweeps up to 4k the engine dies, big plume of steam. Put it in neutral and coast to the shoulder. Even with the engine off huge amounts of steam coming out the tail pipe . Look under the car, and water is gushing out of the seams where the exhaust system bolts together. Soon, I'm standing in a puddle of water. Well, I guess this one is not going to make it to the track day May 12. I was hoping to be one of the lucky ones to drop in a used 928 motor and have a quick fix. Not in the cards for me. Time to pull the motor and rebuild it correctly.
I'd have to guess that besides the obvious lifter problem, there must have been something that "fell" down the intake port or down the spark plug hole and was caught between the piston and the head...eventually cracking the cylinder.
That sucks!
05-03-2012, 11:59 PM
#153
Three Wheelin'
+1 Adam and Tom. Mr Moming this w/k but it'd be good kid experience too. They have already done Intake R&R, OPG/MM, TB/WP so an engine swap is good for them too 
05-04-2012, 02:41 PM
#155
Rennlist Member
Thread Starter
I've got my youngest son's lacrosse game to go to in the morning. I would anticipate getting out to the shop and getting started around 3pm. Feel free to text me if you want an update as to a start time.
253 229 eighty-six ten.
253 229 eighty-six ten.
05-06-2012, 03:52 AM
#157
Had a full house today at the shop (John D, Tom supercedar, Bill HB4, and Dave H) helping Adam..... I left at 10:30pmish.... replacement engine was in...and they were fussing with the clutch. Still lots to do...but they got quite a bit done in a short period of time..
When they pulled the old engine...number 8 was full of water.. (the knocking sound was coming from #4)...so it'll be interesting when the engine comes apart.
When they pulled the old engine...number 8 was full of water.. (the knocking sound was coming from #4)...so it'll be interesting when the engine comes apart
.
05-09-2012, 04:50 AM
#159
Engine is in...and running...no shakedown cruise tonight...but at least he'll have a couple of days to test it.. ...Here's a couple of videos of the first start (first vid the engine started but revved high so he shut it down). Second vid, idle is adjusted .
http://s252.photobucket.com/albums/h...6548802641.mp4
http://s252.photobucket.com/albums/h...6549304082.mp4
...Here's a couple of videos of the first start (first vid the engine started but revved high so he shut it down). Second vid, idle is adjusted .http://s252.photobucket.com/albums/h...6548802641.mp4
http://s252.photobucket.com/albums/h...6549304082.mp4
05-09-2012, 12:07 PM
#162
Rennlist Member
Thread Starter
Only ran it for a few minutes to make sure it didn't have any noises or leaks. I should be able to drive it around some today to see if everything is in working order.
05-17-2012, 11:12 AM
#164
Rennlist Member
Thread Starter
So here it is folks the post –mortem on the 4.7 not for the faint of heart.
We had pulled the plugs and all looked fine except #8 which was full of water. John Davis came out to help with the post-mortem. We started doing the victory dance as we were pulling the head off the studs because #8 was intact. Could it be that I’d get out of this with only doing a head gasket replacement?
Then John says “What is that!”. Look over to #5 and there at two vertical lines going up the cylinder.
Pull off the head gasket and a section of the cylinder falls away:
Here’s with the piece removed:
No evidence of what got down in the cylinder. From the rust spots, looks like somethimg ferrous must have been dropped in.
BUT… it doesn’t end here.
The original 4.5L that had come with the car, which also had locked up, was there sitting on stand. Tools were already out. Let’s pull a head and see what we can see:
#8 on the 4.5:
Something odd is going on around here.
We had pulled the plugs and all looked fine except #8 which was full of water. John Davis came out to help with the post-mortem. We started doing the victory dance as we were pulling the head off the studs because #8 was intact. Could it be that I’d get out of this with only doing a head gasket replacement?
Then John says “What is that!”. Look over to #5 and there at two vertical lines going up the cylinder.
Pull off the head gasket and a section of the cylinder falls away:
Here’s with the piece removed:
No evidence of what got down in the cylinder. From the rust spots, looks like somethimg ferrous must have been dropped in.
BUT… it doesn’t end here.
The original 4.5L that had come with the car, which also had locked up, was there sitting on stand. Tools were already out. Let’s pull a head and see what we can see:
#8 on the 4.5:
Something odd is going on around here.