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Rattly lifters (ATTN Moderators-to be archived )
Posted 19 April 2002 - 05:11 PM
I have heard that air can leak into the oil system. Is this true ? From where ? What's the cure please?
Posted 19 April 2002 - 05:33 PM
Posted 19 April 2002 - 10:57 PM
Posted 20 April 2002 - 03:06 AM
Posted 20 April 2002 - 04:27 AM
So how do I get the crank pulley off ? More soon
Posted 20 April 2002 - 05:42 AM
The non-Patentable Kamakazi Starter bump method
1] Pull coil wire from distrib.
2] Fit breaker bar and socket on bolt so that breaker bar is supported by frame or the ground
(remember the bar is going to try and rotate clockwise)
3] turn the key to the start position breifly
4] Whack! whoop dar it is.
I personally have used this method several times.
Tis best to have the radiator, small children, dogs, cats, ect out of the immediate vacinity when performing this operation.
It sure sounds like the pump to block sealing 0-ring ("Micket mouse 0-ring -you'll se why it is called this when you see it) has gone flat and is allowing air instead of oil to be drawn and pumped into the oil gallery. Very common problem.
A steady diet of Castrol 20w/50 GTX, 1/2 can of MMMO and Purolator filters will keep the lifter noise a bay till you can do the nasty.
Posted 20 April 2002 - 08:26 AM
But the problem is definitely low oil pressure - about 10psi at hot idle. I took the pump off and refitted it with silicon sealant in the seal groove (with the seal that is). The pressure is great when cold but drops to 10psi hot - so I guess the pump is duff huh ?
Now, the engine noise is cyclic, like I said, and when it goes, the engine is sooo smooth and quiet. So the bearings must be OK ? So will a new pump do the trick ?
As I have put a lot of time into this car as well as 2 new rear dampers, I don't want to junk it too soon -am I wasting my time ? If a new pump will give me peace and peace of mind then I am willing to invest. What do you think?
Posted 20 April 2002 - 11:12 AM
Posted 20 April 2002 - 02:05 PM
Posted 20 April 2002 - 03:25 PM
Now I have a rebuilt EA82T engine (based on 160k miles engine) in my XT with new seals and bearings, and even with the synthetic 5W30 I use to run the engine in, it is quiet (old lifters!) except when I first started it.
So my guess is that the lifters itself will last, it's the oil pump (pump also has 160k miles) seals that make the lifters eat air.
Guest_Chris in VA_*
Posted 20 April 2002 - 08:46 PM
Posted 21 April 2002 - 01:59 AM
Is there a way I can test oil pressure with a more reliable guage than the one on the dash? Is there a way I can find out if the oil pump is OK without removing the whole thing? I won't hesitate to replace it if that's my problem but I want to have an accurate diagnosis of the problem before I get my hands dirty.
Posted 21 April 2002 - 07:59 AM
Posted 21 April 2002 - 11:40 PM
Posted 22 April 2002 - 04:33 AM
I'll keep you posted on the results later this week when I get the parts. If it works, I might do the same job on my beloved XT Coupe which has the same problem - and getting that amazing 4WD, air suspension, manual trans, turbo Coup back in action would be fun. (1985 and everything still works)
Thanks to all for your advice.
Posted 26 April 2002 - 02:22 PM
Except for this slight ticking . . .
So the lifters tick, is this a big deal ? Well, after careful examination - it ain't the lifters; it's the fuel injectors ticking.
Posted 26 April 2002 - 03:14 PM
Good luck and I hope you solve your problem.
Posted 26 April 2002 - 10:11 PM
When you say that the problem is usually the O-rings, are you talking about the ones on the camshaft case, that are shown in the first picture on Cameron's lifter fix page of the camshaft case? Or are you talking about an O-ring that goes with the oil pump? I understand there is an oil pump gasket (which keeps the oil inside the engine) and an oil pump seal (which keeps the pump pumping oil and not air)...is it one of these that you're talking about? Or the O-ring on the camshaft case?
The ticking sound in my Sube just magically went away last week. I've been running SAE 50 oil in it for about 3 weeks, which didn't really change the ticking sound until just a week ago when it just vanished for no apparent reason. I never got a chance to listen with a stethoscope to the engine to locate the tick. Perhaps it'll come back someday...
I bought an oil pump and the gaskets that go with it and will install it in a few days when I'm off work. That should help solve my oil pressure problems (I get the same low pressure with SAE 50 as with 10W30) and perhaps do something to the ticking, we'll see. I just had the heads off for a head gasket job and didn't replace those little O-rings in the camshaft case b/c I didn't have any new ones and didn't know what they were or how important they were - I just stuck them in place with some ultra blue silicone gasket material...perhaps that has done the trick. I sure hope I don't have to take the camshaft cases off just for that silly little O-ring that I could have done before.
Posted 27 April 2002 - 11:03 AM
Posted 27 April 2002 - 08:03 PM
I have pretty loud sounds comin out of the valve areas, but i dont have time to mess with it for a little while and would still like to have access to this info in a little bit.
Posted 29 April 2002 - 02:14 AM
maccee44, you could just copy this text into a .txt file on your computer, and you'd have it in your own archives for whenever you want...just a thought.
Posted 29 April 2002 - 09:16 AM
I will archive this though, as Cameron did an excellent job with the write up. If Cameron doesn't mind Shawn should add some or all of this info to the "Repair Manual".
Posted 29 April 2002 - 04:10 PM
Also, when i asked on the board before about oil weights I didnt say that my valves were making noises so do you have any recommended thickness that would be good to quiet them down? they got pretty loud when i put 10w40 in.
Posted 29 April 2002 - 05:24 PM
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