General Ford Ranger Discussion General discussion of the Ford Ranger that does not fit in any other sub-forum.

Can Crankshaft Endplay Cause Front Transmission Seal Failure?

Old Sep 1, 2022
  #1  
Mountaineer's Avatar
Thread Starter
|
Member
Joined: Sep 2022
Posts: 4
Likes: 0
From: Frankford, WV
Can Crankshaft Endplay Cause Front Transmission Seal Failure?

Hi,

I have a 1985 Ranger 4WD 2.8L V-6 automatic transmission with 99,000 miles on it. The front seal on the transmission failed recently and when it was replaced, it failed again almost immediately. My mechanic also discovered that the flywheel was broken and replaced that when he replaced the front seal again--which immediately failed again. My mechanic thinks that the crankshaft has too much endplay and it is causing the seal to fail and also broke the flywheel but he is not completely sure--he just can't think of what else it could be. Before I buy a rebuilt engine, I thought I'd ask here if his diagnosis is correct. Anyone have any experience with this issue?

Thanks in advance.
 
Reply
Old Sep 1, 2022
  #2  
RonD's Avatar
RF Veteran
iTrader: (1)
Joined: Jan 2014
Posts: 30,635
Likes: 2,949
From: Vancouver, BC
Welcome to the forum

Crank end play is set by the Thrust Bearing, in the 2.8l its one of the crank main bearings, it keeps the crank from sliding forward or backwards as it spins
Seen here: https://www.ebay.com/itm/184563627236

The front and rear main seals ride on a fairly wide smooth surface so there would have to be a lot of end play to cause either to leak

A crank wobble would cause leaking seals and broken flywheel
I think the broken flywheel would be enough reason to have the engine block rebuilt or replaced
 
Reply
Old Sep 1, 2022
  #3  
Mountaineer's Avatar
Thread Starter
|
Member
Joined: Sep 2022
Posts: 4
Likes: 0
From: Frankford, WV
Thanks for the info, RonD. Much appreciated.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
NHRanger
Drivetrain Tech
2
Oct 14, 2021 07:06 AM
keithlipke77
Suspension Tech
2
Dec 18, 2016 04:45 PM
03DualSport
Drivetrain Tech
3
Jan 17, 2014 07:39 PM
Dcraig
General Technical & Electrical
1
Aug 9, 2013 11:17 AM
jharley79
4.0L OHV & SOHC V6 Tech
2
Feb 16, 2010 10:02 AM


Thread Tools
Search this Thread

All times are GMT -6. The time now is 11:00 PM.