1989 (?) Constant overheating!!!
#21
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Check the page I linked to. Valve cover has nothing to do with the timing belt job. On the water pump some people use just gasket and some use just sealant or both. I used both. Let the sealant set for a day if you can before you run it.
#22
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When i was about to drain the radiator on the last flush, I pulled the bottom.hose off the radiator, because his petcock wouldnt open... and the water that came out of the bottom hose was almost as cold as it was going in when I filled it up with the hose. While the water IN the radiator was hotter than hell when I opened the cap. Does that mean the thermostat isnt opening? Water flows through the top of the radiator out through the bottom just fine. Nice constant flow, no cool spots on the radiator, so I dont think it is clogged.
That sounds like a partially clogged radiator. Flushing doesn;t work all the time....a new radiator is the way to go.
#23
So I am about to do the water pump tomorrow. Is there anything I need to know before attempting the job? Remove fan shroud, radiator, clutch fan then the pump, correct? Where does the O Ring go again that came with the new pump? What size nut holds on the clutch fan? Anything large or abnormal?
#24
I know you can do a timing chain replacement with only 10, 12, and 14mm sockets (not counting the 3/4" for the crank pulley). If I remember right the clutch fan is 10mm bolts, I think the water pump has 10 and 12 on it because a couple of the bolts run through and hold the timing chain cover on. Fitted gasket goes into groove on back of water pump.
Be careful of overtightening the new bolts, I broke one off in mine.
Be careful of overtightening the new bolts, I broke one off in mine.
#25
Ok. But the removal process I described is spot on? Im realllly hoping.it is the water pump that is causing it to overheat. There isnt much else I can do after this.
Verrrry Stupid question, I know. But which way does the thermostat go in? Hahahha.
Verrrry Stupid question, I know. But which way does the thermostat go in? Hahahha.
#27
Im a little afraid to start it back up with that grinding metal sound and traces of smoke. What i THINK is a bad bearing/turbine in the water pump. If it.means anything, when it was running.prior to the noise starting, the top hose was firm and filled with hot water. What does that tell me? Is the pump working?
#29
The smoke was coming from behind the plastic cam gear cover. The noise was coming from what I thought was the water pump.e
#31
I have not pulled the timing cover off. Is this the plastic "cam gear cover" I was referring to? The smoke didnt really have a smell, just a hot musty burning smell.
How tedious is it to locate the timing cover and inspect the belt? Sorry man, im not to familiar with these 3.0's, bare with me.
How tedious is it to locate the timing cover and inspect the belt? Sorry man, im not to familiar with these 3.0's, bare with me.
Last edited by evan1395; 04-03-2014 at 04:10 PM.
#34
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before you change the water pump, pull off the timing over and figure out where that smoke came from. If it turns out to be the WP you're set, but if its something different you can still return the WP.
#35
I figured even IF I did get the belt off and swap the pumps out, you then need to time the engine when putting the belt back on, is this correct?
NothingBetter, it is still hard to say exactly where the smoke was coming from. But with the grinding metal bearing sound and water NOT circulating through the radiator, I'm almost positive it is a faulty pump.
#36
So im gonna go back and give it another go at it. The only thing that discouraged me before was taking the timing belt off. I got a diagram from mechanic buddy. The tensioner pulley is the smaller one on the left with the high tension spring attached to it, right? The cam gears should have marks on them correct? I basically just mark the teeth in relation to the belt position before taking it off? I was told these 3.0's are NON Interference engines, what exactly does that mean?
#38
As for the timing belt tensioner pulley, do you just rotate it clockwise, much like a tensioner pulley for a serpentine belt? Where are the marks on the cam gears for the belt? I basically just position the belt BACK on exactly how I took it off?
#39
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The cam gears have little triangles and you want them point at 0 degrees, or straight up. The camshaft has a little circular mark on the front of the gear down there. What you want to do is line up the timing belt marks with the camshaft gears pointing straight up and line up the timing belt mark with the dot on the camshaft gear. However, make sure you do this and keep it under tension somehow while you install the rest. I put a block of wood under the tensioner pulley to act as temporary tension while I installed the rest of the stuff before finally doing the hydraulic tensioner. Otherwise, the belt may move when you put tension on it from the tensioner. I suppose you could also zip tie the belt to another part of the belt to make sure it is taught. Key word here is taught/tension. I had it all done myself and then the belt moved before I discovered my wooden block trick.
#40
The cam gears have little triangles and you want them point at 0 degrees, or straight up. The camshaft has a little circular mark on the front of the gear down there. What you want to do is line up the timing belt marks with the camshaft gears pointing straight up and line up the timing belt mark with the dot on the camshaft gear. However, make sure you do this and keep it under tension somehow while you install the rest. I put a block of wood under the tensioner pulley to act as temporary tension while I installed the rest of the stuff before finally doing the hydraulic tensioner. Otherwise, the belt may move when you put tension on it from the tensioner. I suppose you could also zip tie the belt to another part of the belt to make sure it is taught. Key word here is taught/tension. I had it all done myself and then the belt moved before I discovered my wooden block trick.
I was reading this thread...http://board.marlincrawler.com/index.php?topic=72480.0
And the guy removes the crankshaft pulley in order to remove the LOWER timing cover. Is this necessary to remove the water pump?
Which is the hydraulic tensioner? I see the one on the left side of the timing setup, but it has a spring and bolt to keep it in place. Pictures 19 and 20. Is this the hydraulic tensioner?