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    Pontiacs and Jeeps

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87MJJeep's Achievements

Comanche Aficionado

Comanche Aficionado (4/10)

  1. Thank you, Cruiser! Sent from my SM-N975U using Tapatalk
  2. That is great to know! Sent from my SM-N975U using Tapatalk
  3. Thank you. I never would have thought to look for such a tool. Sent from my SM-N975U using Tapatalk
  4. Thank you! I will be very careful when I put the new water pump on. Sent from my SM-N975U using Tapatalk
  5. Thank you for the tip. I replaced the alternator a few years ago. That's the only time I have messed with the belt. I don't even recall how it was tensioned. Sent from my SM-N975U using Tapatalk
  6. My 87 4.0L is cooling fine, but I think I have pinpointed a clacking noise to the bearing/shaft of the water pump. The four bolts holding the pulley on are tight, but if I grab the pulley, I can make it wiggle. What is the ultimate failure mode of this noise? Will the pump lock up? Or will it suddenly stop flowing? Is the pump replacement straight forward? Is there a good reference write up for it? Is there anything to look for in the replacement pump? (I'm an old school Pontiac guy, and the impeller gap on those is critical for proper cooling. Many replacement pumps have a gap that results in barely adequate cooling.) Thank you.
  7. I appreciate the heads up. I can imagine how easily they are torn. I just fired it up, and no leak. Took it for a drive and still no leak. 55 degrees today vs ~30 degrees the other day when it leaked. That was the coldest start up it's had in a long time. I can see a spot on the side of the injector. It looks like a wet spot in the photo, but it's totally dry. I have to wonder if the cold day leak was at one of the seams in the side of the body, and that spot was "washed" by the fuel. Leaning toward getting a set of 4 hole injectors and be done with it. Good to know!
  8. Thanks! That confirms the body can leak. Thanks for the feedback. I would not have known to use any grease. Is any other type of grease OK to use? (never used any for engine building) Thanks!
  9. I smelled gas during my last ride, and popped the hood to find a fuel leak at the front injector. I could see some fuel between the injector body and the opening in the intake, but the fact so much of the injector was wet makes me question where the leak really is. It was a cold day and I noticed upon restart it did not get wet again. That made me think it was the o-ring. With the age of the truck, I am wondering even it if it just an o-ring, should I upgrade to new injectors. It would be wise to replace all 6 o-rings, so while I am that far into it, go all the way. I saw the link below during my search: https://www.ksuspensionfab.com/store/p8/Remanufactured%3A_4_Port_Upgraded_Fuel_Injectors_XJ%2FMJ.html#/ If I get new injectors, that is in the running, though I saw a comment that cummins93 "does 'em right." Is cummins93 the person behind ksuspensionfab, or is he another source for injectors? Thank you for the advice. Brent
  10. I have not re-installed my cab vents yet, but here they are. I am tempted to glue a little stick across the three tabs to ensure the flaps don't come off like the factory ones did. The rubber sheets are 1/16" thick or ~1.6 mm thick. I happened to have one survivor stock flap, and it measured 0.5 mm thick. I definitely wish this new rubber was a bit thinner. I used a 3/32" punch to make the holes.
  11. Thank you for the rubber tip and the removal advice!
  12. I was one that followed the advice of "pull your carpet." I used your baby powder trick many years ago when I tackled leaks coming in all over. I even sprinkled it on the firewall engine side to see where the water ran. The first time I took it to the dealer, I got a call, "DID YOU HAVE AN ENGINE FIRE? It looks like fire extinguisher residue behind the engine!" Naw, that's just baby powder. ROTFL I hope if it's the windshield, I don't have bad rust in that spot.
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