Rebuild vs Crate??? - Page 3 - Hot Rod Forum : Hotrodders Bulletin Board -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
lost password?   |   register now

LinkBack Thread Tools
  #31 (permalink)  
Old 03-21-2012, 12:54 PM
starnest's Avatar

Last journal entry: Center Link Installed
Last photo:
Join Date: Apr 2007
Location: Virginia Beach
Age: 62
Posts: 327
Wiki Edits: 0

Thanks: 4
Thanked 5 Times in 4 Posts
Originally Posted by bsa_bob
The flex plate was tightened down center. not completely flat[fitted]on the crank. before the tightening down sequence began.therefore it just broke out at the shown point hth No other reason to me.
This makes sense to me, I wouldn't have thought of it because when I assemble stuff I always check fitment before and during tightening of the bolts.

I would think that some of the other alignment issues discussed are possible, but not something I've experienced.

Since you had this failure of the flexplate, I would check to be sure your flexplate, trans, etc fits correctly before putting it back in the car.

Reply With Quote Quick reply to this message
Sponsored Links
  #32 (permalink)  
Old 03-21-2012, 08:16 PM
Registered User
Last photo:
Join Date: May 2011
Location: Westminster Md.
Posts: 18
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts

Not a lot of people have extra money laying around. I replaced a dozen or more flywheels that looked exactly like the one you pulled out, and they were hammering so loud it would've fooled almost anyone into thinking the motor was blown. It would be prudent to pull the oil filter and cut it open. You don't need any fancy tools. Examine the filter media for the presence of any metal particles. If there is no metal, I would install a new filter and change the oil. Since the motor has been setting for a while, a pre-oiling is mandatory. The pro-form tool is not terribly expensive and does a decent job, but if you have any old distributors available, a nut welded on the top and spun with an air ratchet works very nicely, and they don't heat up. Of course if metal is obvious you will have to make a decision as to the best use of your hard-earned money. Stay away from the cheap crate motors as most are assembled with questionable parts and sometimes questionable labor. If you do choose to go that route, stay with a reputable company that will stand behind their product. Assuming there is no metal, remove the spark plugs and squirt a bit of motor oil into each cylinder. After you have achieved oil pressure, have a friend turn the motor over with a ratchet as you continue to pre-oil. Just a couple revolutions is adequate... you don't want to damage the camshaft. The only other thing that you may want to consider, while the motor is out, is a new set of valve seals. Easy to do with the motor on the stand and very inexpensive.
Reply With Quote Quick reply to this message
  #33 (permalink)  
Old 03-22-2012, 04:01 AM
farna's Avatar
Last wiki edit: AMC V-8s Last photo:
Join Date: Sep 2002
Location: Batesburg-Leesville, SC
Age: 55
Posts: 1,720
Wiki Edits: 14

Thanks: 0
Thanked 26 Times in 24 Posts
I just remembered something... part of the problem may be the quality of the flexplate IF it's a recent (in the past 10 years) purchase. My brother works on a few of the local farmers and friends vehicles. He recently put a reman engine in a 2002 or so Chevy truck and bought a new flexplate. The flexplate cracked in the center after just a couple months (and over 2500 miles... truck used by a siding company). He'd bought a NAPA "made in China" flexplate. The replacement was purchased from GM, but low and behold it was "made in China" too! Probably the same flexplate, just reboxed by GM and cost $20 more. We figure the one that cracked probably wasn't properly heat treated (hardened). That will happen occasionally even with US manfuactured items -- everybody makes a lemon now and then, though it does seem to occur a little more often for some...
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
350 generic crate, rebuild? Catfish11 Engine 3 02-15-2012 10:16 AM
Crate vs Rebuild markkr14 Engine 27 07-14-2009 07:19 PM
402 rebuild or crate motor rob68427 Introduce Yourself 2 12-18-2004 08:42 PM
Rebuild or Crate? Dejavu Engine 6 07-16-2004 08:17 AM
Rebuild vs. Crate lenanci Engine 1 02-15-2003 09:00 AM

All times are GMT -6. The time now is 01:45 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.