Gwen - exploring options 3-16 - Page 18 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 02-17-2008, 02:09 AM   #171
Senior Member
True Car Nut
 
radomirthegreat's Avatar
 
Join Date: Sep 2006
Location: Indianapolis, IN
Posts: 4,606
Thanks: 0
Thanked 0 Times in 0 Posts
radomirthegreat is on a distinguished road
Default

I don't have too much to put in, but good work overall. I'm following the progress, and it'* really interesting to see how this is coming along. Nice work with the "puller."

Also, I remember you had a whole lot longer hair. If I'm right, you got one heck of a haircut.
radomirthegreat is offline   Reply With Quote
Old 02-17-2008, 03:08 PM   #172
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

Looks like Dad was right on that one... I had to stop and thing about why the cam could or would wear.. Funny thing it that the Balance shaft is driven off the cam... More weight and or pressure on the camshaft bearing.. And it does look like the Face of the bearing is wiped out....

I know on my 91 LE the Balances Shaft bearings are beat up.... Its making me want to pull the motor and do a Freshen up on it.. It has great oil pressure, But the balance shaft make a lot more noise than I prefer...

Now lets see some of the Rods and Crank...

And as I was looking at the left over parts, I was thinking... Hmmmmm, What parts do not belong

Forward progress

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 02-18-2008, 08:36 PM   #173
Senior Member
True Car Nut
 
Join Date: Mar 2006
Location: Virginia
Posts: 2,904
Thanks: 0
Thanked 0 Times in 0 Posts
93-SSE is on a distinguished road
Default

Pics of the crank and Rods will come over the weekend, all I had time to do after the most recent pics was I turned the block over and pulled the oil pan off that night. Sunday was hectic, I didn't have time to clean up my mess, so now mom can't get her Expedition in the garage And now I'm back at my grandparents place for the week.

Dad said he went ahead and pulled #5 and #6 Pistons out, leaving the other 4 to me. He said he was interested to see. He only told me that by the looks of it he doesn't think the pistons are useable anymore
We shouldn't need them but, dang
93-SSE is offline   Reply With Quote
Old 02-18-2008, 09:24 PM   #174
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

William I think we are finding if you run them hard they tend to wear out... This seems to be the case more and more..

On the 95 Motor I yanked out of my car what I thought was a Rod issues was more of a Wrist Pin Bushing / Piston Skirt issue.... And I think I cause it buy the way I drive the motors so hard...

The 99 Motor I used that spun a rod bearing must not have even been pushed hard as the Pistons were tight to the cylinder wall.. There would have been just enough clearance for expansion...

But I am further interested in what you guys have found on the Cam bearings as for what ever reason I am having Balance shaft issues on the 91( Same Block as your L27- Minus 2 Bolt bosses )



__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 02-18-2008, 09:53 PM   #175
Senior Member
True Car Nut
 
Join Date: Mar 2006
Location: Virginia
Posts: 2,904
Thanks: 0
Thanked 0 Times in 0 Posts
93-SSE is on a distinguished road
Default

lol, not sure we're gonna get the balance shaft out of that block. it probably should have been done before i pulled the timing chain, or cam, it slipped my mind at the time...now it spins freely and nothing to hold it to break the bolt loose

I thought it was ridiculous how tight some of the bolts were on that motor. Had to shove a pry bar though the flywheel and get a breaker bar and a 3ft long pipe on top of that to get leverage and put all my weight on it to break the bolt on the HB loose, the bolt on the timing chain/cam sprocket was the same way.

Dad was really surprised to see roller lifters in there though.
93-SSE is offline   Reply With Quote
Old 02-18-2008, 10:10 PM   #176
Senior Member
True Car Nut
 
radomirthegreat's Avatar
 
Join Date: Sep 2006
Location: Indianapolis, IN
Posts: 4,606
Thanks: 0
Thanked 0 Times in 0 Posts
radomirthegreat is on a distinguished road
Default

Wow, that is amazing. How do you think you'll be able to get the bolts and nuts back on there? Same method? I found that a junkyard (or your own) strut bar on the end of a breaker bar works just fine, too. Is that longer than 3 feet? When I imagine what you did, I see a pipe too wide for the breaker bar, so that'* why I'm suggesting the strut bar.

Good work so far, and thanks for keeping us so closely updated. Your dad seems to be a cool dude. Way to spend quality time together!
radomirthegreat is offline   Reply With Quote
Old 02-18-2008, 10:20 PM   #177
Senior Member
True Car Nut
 
Join Date: Mar 2006
Location: Virginia
Posts: 2,904
Thanks: 0
Thanked 0 Times in 0 Posts
93-SSE is on a distinguished road
Default

Well this motor surely wont be going back together, I'm striping it down to learn and see what to expect when we tear down the other motor for real and for the second time. Already made a few mistakes with this one, good thing it'* not going to be reused
93-SSE is offline   Reply With Quote
Old 02-18-2008, 10:21 PM   #178
Senior Member
True Car Nut
 
radomirthegreat's Avatar
 
Join Date: Sep 2006
Location: Indianapolis, IN
Posts: 4,606
Thanks: 0
Thanked 0 Times in 0 Posts
radomirthegreat is on a distinguished road
Default

Good to know. Well, have fun.
radomirthegreat is offline   Reply With Quote
Old 02-19-2008, 02:02 PM   #179
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

Quote:
Originally Posted by 93-SSE
lol, not sure we're gonna get the balance shaft out of that block. it probably should have been done before i pulled the timing chain, or cam, it slipped my mind at the time...now it spins freely and nothing to hold it to break the bolt loose

I thought it was ridiculous how tight some of the bolts were on that motor. Had to shove a pry bar though the flywheel and get a breaker bar and a 3ft long pipe on top of that to get leverage and put all my weight on it to break the bolt on the HB loose, the bolt on the timing chain/cam sprocket was the same way.

Dad was really surprised to see roller lifters in there though.

Yeah those Bolts can be a bear... And yeah its nuts how tight they get

Yeah all of these Motors from the Vin 3 3.8V6( 86-88 ) and every 3800 produced used the same roller lifter... The 3800'* were some of the lowest friction engines made... Still a great motor even by todays standards.. Good to see the Learning Progress

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 02-22-2008, 01:43 AM   #180
Senior Member
True Car Nut
 
Join Date: Mar 2006
Location: Virginia
Posts: 2,904
Thanks: 0
Thanked 0 Times in 0 Posts
93-SSE is on a distinguished road
Default

More progress has been made, dad went ahead and pulled the pistons/rods and crank.

All of the rod bearings look fine, a little scuffed from some of the trash in the oil but no copper is showing at all. However the Crank bearings on the front and rear of the motor are trash and even more obvious than the cam bearing was . The top of the front crank bearing and the bottom of the rear crank bearing are clearly copper colored, the middle two bearings are still completely usable. it seems that the crank was misaligned in the block and/or the Balance shaft and the timing chain tensioner really do put a good deal of stress on the bearings.

The pistons are not usable anymore, all of them are scuffed on one side, and the #6 is scoffed on both sides. They had some play inside the cylinder wall. The bore is incorrect or off, if this block was to be reused it would certainly need to be bored over. Also requiring new pistons. But this block will likely be dumped unless someone else wants it (Highly Doubtful).

Dad has all the pictures on his computer, I'll get those up tomorrow afternoon to show/explain in a little more detail of the findings.
93-SSE is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Options for 2000SSEI; VIN lookup availability; Accessory Kit options Syn General GM Chat 2 04-07-2010 11:29 AM
Hood Options SOLID 2000-2005 3 05-10-2003 01:05 PM
Intake manifold options jonboll Performance, Brainstorming & Tuning 19 04-27-2003 04:24 PM
Factory Options/Accessories CODES #'s??? susanrandom 1987-1991 10 03-24-2003 05:30 AM
Early 90's Bonneville features/options list PontiacXcitement General GM Chat 0 01-09-2003 02:53 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 02:03 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.