lifter noise

[rockinr]

Here some back ground on my issue. I was driving on the interstate when my head gasket blew. By the time I got over to the side of the road the engine had over heated. I tried using "Blue Devil" to fix my blown head gasket. About 20 min into the test (letting the truck idle with the heater on full blast) I lost all oil pressure. I went ahead and removed the heads had them check for flatness and for any cracks, everything okay. I replaced all of the gaskets and the fluids and started the truck. I know have a loud lifter noise from the engine. I cleaned every part before putting it back togather every thing looked okay. Does anyone have any suggestions on what I check?

 

[Maniak]

Did you check for oil pressure again after you put it back together? (using a real gauge, not the dash)? I know it took a good minute or two to get good oil pressure when I first started my motor after the rebuild.

~Mark

 

[rockinr]

Yes, my oil pressure is good. I have between 55-60 PSI. I was told by a friend to pull my vlave covers and check to make sure I'm getting oil thru my push rods. I will be doing this tonight. Thanks for your response. Any other ideas would be great.

 

[Maniak]

If you have an OHV motor (which has push rods) then pushrods (at least on the '92) are not hollow. Oil doesn't come up through them.

As far as I know the SOHC motor doesn't use push rods so if you have that motor, you don't need to check pushrods. I don't know for sure though.. I haven't started to look into the sohc motor yet (its in our mustang)

Is the motor running smooth (other than the ticking?) I had a pushrod come out of the cup when I put my rocker arms back on which made it run rough and loud (I don't remember if I heard ticking or not, it was a while ago).. I know on the first gens (OHV motors) that the rocker arms and push rods to wear and there are kits for replacements (Delta Cams is where I got my last set from).

~Mark

 

[johnnie1]

Im having same sort of noises but not sure if its lifters or crank noises
trucks got problems gettin on da hiway does yours have same problem ?

 

[johnnie1]

does anybody know where i can get a good motor for my 91 explorer ? or should I jus rebuild the one i have ?

 

[rockinr]

now that you said that, I do remember the push rods being solid. No the motor is not running smooth. It has a rough idel and seems like it is missing. I did get a P0125 code from it. I'm going to replace my t-stat tonight.

 

[rockinr]

I have found a couple of OHV in junkyards with anywhere from 60,000 to 80,000 miles for around $700.00.

 

[rockinr]

I just removed my valve covers. All of my push rods are in the cup of the rocker. But I do have one push rod that is loose, that makes me believe that I have a collapsed lifter. Should I replace just the one lifter or replace all of them.

 

[Maniak]

Double check the pushrod length and check the cup on the rocker arm. If either wears too much it'll be loose. Its about $200 for a set of pushrods and rocker arms from Delta Cams..

The lifters aren't cheap.. and the only way to pull them is to pull the heads.. I looked at replacing them when I rebuilt my motor last month.. but at $40 each I decided against it.

~Mark

 

[rockinr]

I used some JB Oil tune-up in my 98 XLT. It freed up the sticky lifter and allowed it to pump back up. No more noise.

 

[rockinr]

Okay I have a new question. My 98 XLT is running great once again. The only issue that I have is when I put the excelerator down to get it to kick down into passing gear, nothing happens. This started after I replaced the head gaskets, not sure if I missed hooking something up.

 

[johnnie1]

thanks for all your advice but I took my truck to a mechinic and he told my it was bottom end now I wish it was only lifter noise but we all cant be that lucky now the question is do I rebuild the one I have or find a better motor ????

 

[johnnie1]

I dont know enough about rebuilding an engine so I cant help answer any of your questions its bad enough that my mechanic is going to cost a small fortune oh well I love drivin my eddie so I guess I got to .. cant I jus get a 302 v8 for it ????