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ANyone got a photo of the top end of a 3.9? Specifically the tops of the valves? Or a measurement from the top of the retainer to the tip of the valve. Thanks.......:drool:

Has anyone here ever tried to install an aftermarket oil cooler in a D1? While installing my cam a few weeks back, I couldn't help to notice how small the OE one was. Summit Racing has some nice ones available for a decent price. It shouldn't be too hard to match up some fittings or get the...

Does anyone here have the stock cam specs for the OE cam in a 3.9? I want to see how worn the old cam that came out is ........ thanks :)

Got a problem here on a 99 RR. The A/C system is fully charged with no leaks (not overcharged either). It will blow nice and cold and then quit after a little bit. If you bring up the RPM's (floor it from 0-40) the cold air will start coming out again for a few miles and then quit again. Any...

Is the inspection cover on this thing the round opening with 3 7mm or 8mm bolts? 94 D1

Ok, I finally broke down and installed a Crower #50229 camshaft, Summit 4130 Pushrods, new rocker arms and shafts, and lifters. Facts to know: 1. Upon dissassembly, wires stayed attached to cap 2. Cap removed and set aside. 3. Cam and crank lined up to TDC, cam keyway at roughly 9 o-clock (if...

OK, I did this once before but forgot the specifics. Just installed a cam and misc parts. Valve covers are still off and I just lined up the crank and cam to TDC. I know where the notch is on the distributor and I know TDC is set on the cam and crank, but both valves on #1 are closed. Is...

I need to find and alternative to the OE pushrods. They should be a fairly common diameter and length. Does anyone have one handy to measure the length and diameter? I am close to Summit Racing and they have tons of options. Thanks...........:applause:

Ok, I am pulling out the cam from the 3.9 this weekend and putting in a Crower and new lifters. I have already done the new lifter thing a while back, so i am familiar with the removal of the top end. But, I have a few questions after that: 1. What is holding the cam into the motor on this...

I need to replace a worn pushrod on my spare 3.9. Anyone got the dimensions or a NAPA/Autozone part number equivilent? Thanks

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Welp, don't you just hate it when this happens? Went to change the oil the other day and Mobil ! now puts some foil type of seal across the top of their 5 qt jugs under the cap. I tore most of it off (the word "most" leading to the problem here). Well, guess what happened? Yep, the little...

Ok, I have been battling the infamous tapping sound forever and about fed up. No matter what I do, it is still there. -New Oil Pump -New Rocker arms -New lifters -cam is good -new timing chain -new push rods -20W50 Mobil 1 Synth with 1qt of lucas yada yada yada...this bastard still has lifter...

Ok, help me diagnose the Dicso's noise of the month: Symptoms: Light knocking noise under a load only, HOT or COLD Motor. 94 Disco, 108K miles new lifters new rocker arms (not shafts) new oil pump K&N Oil Filter 20W50 Mobil1 Synhtetic (fresh) 1 quart of lucas It's there all the time under...

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There are two nipples on the vac. advance (94 disco 3.9). Are they both the same, but in different positions? I have my vac. line very close to a belt and would like to use the other if they serve the same purpose. I have been wating for years to ask a legitimate question about nipples.

94 Disco, basically a full re-build, just tested yesterday and was quite surprised on the results. IDLE TEST ----------------------------------- 2500 RPM TEST HC ppm: 11 of 220 allowed -----------------------------11 of 220 allowed CO...

Lucas strikes again.... Ok, they worked fine this morning. Now: 3rd brake light works fine rear marker lights work fine left and right stop lights no workie 1. Which fuse could this be? LR likes a fu*king riddle in the fuse desription pics, so only a master puzzle expert can figure out...

94 Disco, what is the switch underneath the clock for? It has two lines coming up from the bottom, crossing another?