Timing CainTighten and Pop when rotating crank

Asked by Dec 15, 2017 at 11:13 AM about the 2002 Dodge Ram 1500

Question type: Maintenance & Repair

Got a 2002 Dodge Ram 1500 with a 4.7L engine.  Replaced the head gasket which required disassembling the timing.  Trying to get the timing chains set, but somewhere in the middle of rotating it the chain started tightening when the crank turned and adding a lot of tension to the turning, and then popping and allowing a lot of slack to tighten back up and well, rinse and repeat.  

What should I be looking for?

3 Answers

132,355

Bent crank shaft end, damaged cam or cam journals.

1 people found this helpful.
43,435

The only suggestion I can make is that you have an incorrectly indexed timing chain, camshaft sprocket, or crankshaft sprocket. If you don't have a repair manual pick one up and follow it exactly for replacing the chains. I'll assume you didn't remove the crank sprocket and chain, and only removed the two cam chains. You'll have to index those correctly. You should, if you haven't already, also replace the plastic bull**** tensioner/guides this engine uses, biggest failure rate in this design.

1 people found this helpful.
Best Answer Mark helpful

Looks like this is coming down to the timing chains are just bad.

Your Answer:

Ram 1500

Looking for a Used Ram 1500 in your area?

CarGurus has 8,301 nationwide Ram 1500 listings starting at $1,000.

ZIP:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    7,620
  • #2
    pudgybear
    Reputation
    7,260
  • #3
    dandyoun
    Reputation
    6,980
View All

Related Models For Sale

Used Ford F-150
4,027 Great Deals out of 224,057 listings starting at $495
Used Chevrolet Silverado 1500
2,941 Great Deals out of 177,477 listings starting at $1,500
Used Dodge Ram 2500
182 Great Deals out of 4,259 listings starting at $1,000
Used GMC Sierra 1500
1,273 Great Deals out of 69,180 listings starting at $1,000
Used Toyota Tundra
813 Great Deals out of 37,800 listings starting at $1,989
Used Toyota Tacoma
813 Great Deals out of 52,332 listings starting at $1,502
Used Ford F-250 Super Duty
662 Great Deals out of 48,546 listings starting at $1,999
Used Dodge Ram 3500
83 Great Deals out of 1,821 listings starting at $6,599
Used Chevrolet Tahoe
916 Great Deals out of 39,484 listings starting at $1,500

Used Cars for Sale

2010 Dodge Ram 1500 For Sale
54 Great Deals out of 1,229 listings starting at $3,999
2009 Dodge Ram 1500 For Sale
45 Great Deals out of 965 listings starting at $5,795
2008 Dodge Ram 1500 For Sale
54 Great Deals out of 1,149 listings starting at $2,999
2007 Dodge Ram 1500 For Sale
42 Great Deals out of 1,060 listings starting at $2,995
2006 Dodge Ram 1500 For Sale
48 Great Deals out of 871 listings starting at $1,600

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.