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

152,375

Bent crank shaft end, damaged cam or cam journals.

1 people found this helpful.
50,565

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 410 nationwide Ram 1500 listings starting at $4,900.

Postal Code:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    9,030
  • #2
    dandyoun
    Reputation
    7,920
  • #3
    pudgybear
    Reputation
    7,510
View All

Related Models For Sale

Used Ford F-150
133 Great Deals out of 10,321 listings starting at $2,000
Used Chevrolet Silverado 1500
65 Great Deals out of 10,463 listings starting at $4,750
Used Dodge Ram 2500
3 Great Deals out of 85 listings starting at $5,900
Used GMC Sierra 1500
54 Great Deals out of 9,542 listings starting at $4,595
Used Toyota Tundra
20 Great Deals out of 1,628 listings starting at $4,000
Used Toyota Tacoma
24 Great Deals out of 1,814 listings starting at $5,999
Used Ford F-250 Super Duty
12 Great Deals out of 808 listings starting at $5,995
Used Dodge Dakota
3 Great Deals out of 120 listings starting at $1,500
Used Ford Mustang
31 Great Deals out of 1,796 listings starting at $4,800

Used Cars for Sale

2010 Dodge Ram 1500 For Sale
6 Great Deals out of 120 listings starting at $8,950
2009 Dodge Ram 1500 For Sale
63 listings starting at $4,999
2008 Dodge Ram 1500 For Sale
77 listings starting at $4,900
2007 Dodge Ram 1500 For Sale
4 Great Deals out of 47 listings starting at $4,950

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.