Jump to content
LegacyGT.com

KZR OBXT Rebuild


Recommended Posts

Luckely looking back at my gasket order from M45... I have it!

Didn't have the energy to get back in the garage last night.

Hopefully it's not too hot to muttle about in there later this afternoon.

 

Still want to talk to Killer B and get some torque spec from them on the pan and pickup tube bolts.

Link to comment
Share on other sites

  • 1 month later...

Been busy. Got the "flu" on the way back from the midwest on 7/1. That killed a week.

Need to go over the valve gap again. Built a spreadsheet to help ID new bucket size.

PITA converting back and forth from imperial to metric and back.

So far looks like I need 10 buckets.

With money tight for the moment all on hold until I recoup a little from buying most of what I needed for this rebuild.

Have another long business trip to the east coast early next month.

So I'll probably be able to keep going mid August.

Now one interesting item is the passenger cams are not as free in the journals as the drivers side.

Next step is to plastiguage them and make sure they are not too tight.

 

Link to comment
Share on other sites

  • 2 weeks later...

Some progress... Finally.

Had to polish the passenger cam/journals a little. For some reason passenger side was really tight.

Cams needed help to spin. Now with less stiction. :)

Buckets ordered, i'm splitting hairs but hoping for a nice even lash gap across all.

10 buckets ordered Sunday. Still havent received shipping notice. Funny one was really shallow 4.66 is needed in one location.

 

 

Head Install 2.jpg

Head Install 3.jpg

Oil Pan Installed.jpg

Oilpaninside.jpg

Picku_Windage Tray.jpg

 

Edited by kzr750r1
  • Like 1
  • Thanks 1
Link to comment
Share on other sites

Correction 8 buckets were ordered. I had some changing variables after taking another pass.

So for the most part the shop was half right. But again I'm splitting hairs here going for perfection.

Thanks Max. Well see how long this one lasts. Cooling mod will probably help a little.

Need to get this back on the road ASAP. My Daughter will be needing the slush box to get to school and back for the near future. We drove around in the Toyota Pickup. She did ok driving stick but were a long way from cutting her loose with it. She was sweating bullets once I forced her into public roads.

Edited by kzr750r1
  • Like 1
Link to comment
Share on other sites

  • 2 weeks later...

Sorry for your loss, just went through a death in the family too. Just got home from helping one of my sisters.

Take your time and wait for the heat to break, you'll feel much better working on the car.

305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD).  CHECK your oil, these cars use it.

 

Engine Build - Click Here

Link to comment
Share on other sites

Ripped into it for some time last night.

The good:
Took 6 hours last to get the valve lash set.
Had one that was a clerical error transposing English standard to metric.
Luckily there was a spare bucket in the horde that fit the need.
4.81mm is a little different than 4.91mm.

Intake all .008" and Exhaust all .014" plenty of room for bed in.

Front caps screwed and glued. All torqued to spec. 14.5fp for the mains and the front get 7.5fp.
Use Ultra black in this location and also the next step the valve covers.

The bad:
Had one realization that the shop had damaged a seal bore. Looks like a drop to me.
Cleaned up the inside bore and crossing my fingers and toes it's going to seal.
Going to call the shop rep and at least let him know.
:(
 

Left_Valves_Set.jpg

Right_Valves_Set.jpg

Valves_Emotional_Damage.jpg

Link to comment
Share on other sites

Hard pause. Pulled the head. I could still see seal deflection. Taking up to the machine shop for them to fix it.

Only loss is time and three gaskets. Head and two cam seals. Could probably use the lower again but F it. Just get new.

  • Sad 1
Link to comment
Share on other sites

And a quick fix for the machine shop at M45. They provided me new gaskets for the head and cam seals.

Clearly someone dropped this casting on it's edge. It wasn't me. Rep looked but didn't have these angles in the pictures taken.

Regardless stand up shop making a customer happy.

Nice to see the machine shop expanding to another building across the street. They are moving forward with closed deck bocks providing shipping to shops in the west out to Colorado.

10 min then a little more time talking to the head machinist.

Longest part was the 2 hour drive to the shop.

But took advantage and went up to see the Mother unit.

She's prepping for Knee surgery beginning of next month. New custom parts!

I'm still waiting for my last Heuberger order... Last I checked they were waiting for another oil pump bolt. :(

Least back to where I was a week ago.

 

Edited by kzr750r1
Link to comment
Share on other sites

Bolts I misplaced for the oil pump.

Also a new intake and decided to replace the lower timing belt gears.

Will be the 4th intake and first time replacing all the gears. AVCS gears have been here.

After looking at all the chips on the lowers from install/removal plus 250K miles... It's peace of mind.

Should have most everything else.

Going all new hoses. All in stock best I can figure.

Of course there will always be something I missed.

Link to comment
Share on other sites

22 hours ago, xt2005bonbon said:

Timing belt tensioner is OEM?

Possibly. Bought a bundle a few months back. Made the decision based on parts coming from Japan OEM manufacturers.

Not going the pro gates belt kit like I did last time.

19 hours ago, tdelker said:

Why so many intakes?

Not sure what you are talking about? 

Link to comment
Share on other sites

"Will be the 4th intake and first time replacing all the gears"

 

Why have you had to replace your intake 4 times? Or am I misunderstanding?

 

I use the gates TK328N kit (from amazon or rock auto for best price) which has all japan rollers and 'OE Exact' tensioner.

Edited by tdelker
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

Terms of Use