98 Ranger jumped timing!! - Ranger-Forums - The Ultimate Ford Ranger Resource

SOHC - 2.3L & 2.5L Lima Engines Discussions and Topics specific to the Lima 4 cylinder engines

98 Ranger jumped timing!!

Reply

 
 
 
  #1  
Old 03-11-2007
Member
Thread Starter
Join Date: Mar 2007
Location: Morven, NC
Posts: 3
98 Ranger jumped timing!!

I have a 98 ranger with the 2.5 engine (200K), and it recently jumped timing (belt broke) I replaced the belt and it started right up, ran as good as before, with a slight miss and a light tapping noise. I suspect it may have a bent valve, but I hate to tear it apart and see. It runs well , has as much power as before, but is tapping and driving me nuts. I was wondering if anyone else has had this happen and what the affects this will have overtime if not repaired.
Thanks in advance for any help!
 
Reply With Quote
  #2  
Old 03-11-2007
TireIron's Avatar
Member
Join Date: Feb 2006
Location: Methuen, MA
Posts: 790
it is a non-interference engine so it shouldnt have a bent valve unless something else went wrong. is the timing set perfectly between all 3 pulleys? all 3 need to be set correctly. does the belt have neough tension on it?
 
Reply With Quote
  #3  
Old 03-12-2007
Join Date: Aug 2005
Location: Lowell, AR
Posts: 1,836
Originally Posted by TireIron
it is a non-interference engine so it shouldnt have a bent valve unless something else went wrong. is the timing set perfectly between all 3 pulleys? all 3 need to be set correctly. does the belt have neough tension on it?
Exactly.

The tapping noise may be cause from preignition if the timing is misaligned.


A quick way to check this is to take a flashlight under the hood and inspect the timing indicators through the inspections holes of the timing belt cover.

You'll see a triangle on the pulley that lines up with another triangle on the timing back plate. If the indicators on the oil pump pulley are not aligned with camshaft gear indicators, you need to loosen tension in the timing belt and re-adjust appropriately.

If you can't see the indicators when you're looking through the inspections holes, turn the crankshaft with a 22mm socket wrench until it is visible.
Make sure the key is off, and the battery is disconnected before doing this. I would also recommend relieving the fuel system pressure or pulling the plugs before turning the motor by hand, but that's up to you and your "level of safety".

Here you can see the camshaft gear and the oil pump gear connected with the timing belt to the crankshaft (not visible).
Name:  IMG_3961.jpg
Views: 3130
Size:  87.4 KB
 

Last edited by Needforspeed3685; 03-12-2007 at 12:37 AM.
Reply With Quote
  #4  
Old 03-12-2007
Member
Thread Starter
Join Date: Mar 2007
Location: Morven, NC
Posts: 3
I believe I have it right, but i'll check when I get a chance. I remember there is a triangle on the cam pulley and the cover, a diamond on the oil pump and cover, and a dot on the crank pulley lined up with a slot on the housing. Good to know that it should not be a bent valve, might save me some dough. Thanks for the info!
 
Reply With Quote
  #5  
Old 03-13-2007
Join Date: Aug 2005
Location: Lowell, AR
Posts: 1,836
Please post your findings when you get a chance to take a look at those indicators.
 
Reply With Quote
  #6  
Old 03-14-2007
Member
Thread Starter
Join Date: Mar 2007
Location: Morven, NC
Posts: 3
YEah, that was dead on. My timing was off by two teeth. Reset it and it runs like a top! Thanks for the help, I did not think that would cause that noise, but it did.
 
Reply With Quote
  #7  
Old 03-14-2007
Join Date: Aug 2005
Location: Lowell, AR
Posts: 1,836
Awesome! I'm glad to help you out! Stick around and keep learning on these forums!
 
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
xp1ik99
Snapshots
52
06-30-2010 07:50 PM
t_schloesser
Meet & Greet Photos
11
03-22-2009 12:20 AM
morris
Ranger-Forums Office
17
04-21-2008 06:08 PM
purekaos26
General Ford Ranger Discussion
27
11-10-2005 09:32 PM


Thread Tools
Search this Thread
Quick Reply: 98 Ranger jumped timing!!


Contact Us Sitemap Advertising Cookie Policy Privacy Statement Terms of Service

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.