Plenum repairs

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

OP
OP
S

Silver Tex

Member
Joined
Nov 12, 2013
Posts
62
Reaction score
7
Ram Year
1999
Engine
5.9
Thanks QC,
What I ended up doing was spraying some penetrating oil on the old bolts and ran them back in to clean up the threads, then left them set for a day or 2 that way.
The manifold is back on and with the exception of the hole where the stud broke off, I was able to thread the new bolts in by hand almost all the way down.

Completed work
Water pump replaced.

Timing set replaced, with added tensioner. I really like the tensioner Merc, I can see how it can improve the stability of the timing. It may advance or retard a little but the chain will remain tight. It was definitely time for a new chain.

New vibration dampener - the rubber was coming out of the one we removed.

New 195 T-stat - no other mods intended so I have a new 180 on the bench.

New pickup stator in distributor.

New oil sending unit.

Full tune up - plugs, wires, cap, rotor, air filter, PVC valve

Cleaned up the TB real well, was a mess. (Thanks DD for pointing out the IAD clean? Back of the TB)

Re-torqued the oil pan gasket bolts, the valve cover bolts & the tranny pan bolts. (Will swap the tranny fluid/filter/etc later this spring)

Remaining work - planned for today.
New cat/precat O2 sensor.
Replace ECT sensor - I don't like how the connector on the sensor moves around and it'll be a bugger to change once back together.
Reinstall A/C & Alt
New serpentine belt
Install new radiator & hoses.
New coolant
New oil/filter
Replace the pump on the windshield washer - I broke the "tit" off the hose during removal, just twisted.

I think we'll have about $850-$900 in parts once done, having to consider the high jacked prices we had to pay for some of the local stuff.

Reset the PCM - I've seen at least 2 ways to do this; neg. term. off, hold key in start position for 30 secs.; remove pos. term and touch both together. Any thoughts.

Hopefully she starts and runs well.

Time working on this with my son....priceless!

Here are couple of things we found helpful and may not apply to all plenum replacements.

To protect the lifter galley, we cut up a contractor grade garbage back and tucked it in and up under the block casting. Then we cut a card board pattern and fit it in over the plastic. We literally go zero contaminants in this area. You can see it in the pics.

If you are pulling the water pump during this repair, use a wet vac to suck out coolant from the area's that could pollute the lifter galley. We went in through the water pump holes and sucked the coolant down before we pull the manifold. Again, we got zero contaminants in lifter galley.

We did not find it necessary to remove the cap and wires to do this work. We had already replaced them prior, though we did do the wire routing suggested in the TSB.

Get your list together and order from Rock Auto or other online. The parts we ended up buying locally were easily 40% higher and in some cases double even after shopping around.

More pics to come.

Thanks for everyone's input!
Scott
 

Attachments

  • P1050193.jpg
    P1050193.jpg
    97.8 KB · Views: 33
  • P1050194.jpg
    P1050194.jpg
    97.9 KB · Views: 29
  • P1050201.jpg
    P1050201.jpg
    98 KB · Views: 32

Merc225hp

Senior Member
Joined
Jan 13, 2013
Posts
5,145
Reaction score
3,132
Location
NA
Ram Year
truck
Engine
gas
Timing set replaced, with added tensioner. I really like the tensioner Merc, I can see how it can improve the stability of the timing. It may advance or retard a little but the chain will remain tight. It was definitely time for a new chain.


Reset the PCM - I've seen at least 2 ways to do this; neg. term. off, hold key in start position for 30 secs.; remove pos. term and touch both together. Any thoughts.


Thanks for everyone's input!
Scott

Good to read you installed it and liked it.

Just disconnect the neg cable and turn on the headlights for a few. Do NOT touch the batt cable ends together ever, if there is residual power in the system it would not prove to go well for sensitive items.

Looking good by the way.
 
OP
OP
S

Silver Tex

Member
Joined
Nov 12, 2013
Posts
62
Reaction score
7
Ram Year
1999
Engine
5.9
OK...
She runs good, actually purr's! Started right up after 5 primes of the fuel pump. The only issue is the oil sending unit. New one and it still pegs at 110. Any thoughts? It also took a bit to burp the water side, but is good now.
 

rowdyram

Senior Member
Joined
Feb 6, 2014
Posts
504
Reaction score
219
Ram Year
1996
Engine
magnum 5.9
you deffinatley do not have to remove to oil pan. I remove the timing cover/oil pan bolts and loosen the next pan bolts back and use a screwdriver to apply silicon to the existing gasket.
 

Staff online

Members online

Forum statistics

Threads
210,918
Posts
3,059,631
Members
170,851
Latest member
DUCKY1090
Back
Top