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

121,035

Bent crank shaft end, damaged cam or cam journals.

1 people found this helpful.
37,925

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 8,863 nationwide Ram 1500 listings starting at $2,495.

ZIP:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    7,180
  • #2
    pudgybear
    Reputation
    6,940
  • #3
    dandyoun
    Reputation
    6,510
View All

Related Models For Sale

Used Ford F-150
2,266 Great Deals out of 187,689 listings starting at $495
Used Chevrolet Silverado 1500
1,837 Great Deals out of 155,600 listings starting at $1,799
Used Dodge Ram 2500
149 Great Deals out of 4,614 listings starting at $2,990
Used GMC Sierra 1500
652 Great Deals out of 56,460 listings starting at $1,500
Used Toyota Tundra
469 Great Deals out of 36,890 listings starting at $2,499
Used Toyota Tacoma
459 Great Deals out of 50,124 listings starting at $2,850
Used Ford F-250 Super Duty
424 Great Deals out of 36,233 listings starting at $1,999
Used Ford Mustang
378 Great Deals out of 39,529 listings starting at $1,995
Used Dodge Dakota
88 Great Deals out of 2,998 listings starting at $1,200

Used Cars For Sale

2010 Dodge Ram 1500 For Sale
64 Great Deals out of 1,202 listings starting at $4,500
2009 Dodge Ram 1500 For Sale
37 Great Deals out of 958 listings starting at $4,995
2008 Dodge Ram 1500 For Sale
60 Great Deals out of 1,239 listings starting at $3,495
2007 Dodge Ram 1500 For Sale
49 Great Deals out of 1,150 listings starting at $3,995
2006 Dodge Ram 1500 For Sale
47 Great Deals out of 933 listings starting at $2,500

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.