How is my engine? Valve Cover off and Compression Results

Let me know if you guys have trouble seeing the photos in google.

Chad, yes getting into it, it is not as bad as i thought. I keep getting stuck, literally, on silly things. I fought with that pin for a day to get it off now I am having trouble getting off the support. I grabbed it with vice grips and kinda damaged it, hopefully it isn't ruined. The photo is in the google photos album.

Any tips for removing the supports? It is not moving at all. I sprayed it with deep creep so that is penetrating as I write this.

Thanks!

Google Photos: https://photos.app.goo.gl/n9MDfLroGJfaFYVD7
 
"...removing the supports?..."
U may B running into just what I hoped this joy ride is all abt - inspecting ur parts (well, beyond opening a badly clogged valve train, the initial. This is all the gravy on the meal, close inspection).
By supports, I'm ina senior moment, not towers but yes, the alu supports for the R. shaft. IF U havea Tq wrench place it on the steel nut on top of these alu stands. Tell us how hi U have to crank it to get a loosening movement. My thought is "Its gotten plenty of oil life long in that location. Wonder how tight last guy, or heat soaks? have gotten it?" If no tq wrench just wrk it BOTH back AND forth (a lill). If U have a impact wrench the lill blows w/in it may loosed.

If I am wrong on 'supports' (it's not the stand) let me know.
If the rocker will not slide off the steel shinny rod - this is what I wuz lookin for. It means the rocker/shaft have been effected by this poor oiling. It has goring (just like a bull w/it horn, the metal to metal 'scoring'). Slight (mine) I buffed w/emery cloth in a manner which did not make the rod useless. Bad enuff and the rocker might need a new inside bushing, toss the rod ("whippee, I don't need to clean") and geta new 1. Just B careful w/the (unseen) lifter at the bottom of the P. rods, spin as lifting to detach them offa the bottom. That & put away the vice grips. Use wrenches, soft hammer (wood block) and other means to avoid ur own goring 8^0
keep talkin, go slo so we can keep up (U hot shot !) :- )
 
I am talking about the towers, the shop manual calls them as supports. basically the thing that bolts go through and the rockers are on either side. I got the bolts out no problem but the tower supports do not just slide off like the rockers using a rubber mallet to hammer them off the shaft right now, but any other ideas would be helpful.

Also to your point chad, should these not be so hard to get off? and because they are hard to get off means there is some build up that needs cleaning.
 
C above I wuz typin same time as U.
Yeah, a wood block, hammer, soft mallet.
U can heat the stand (alu) not the shaft (steel).
Crud in there will not score/gore, not to worry.
Look after to see if U scored it or it is gored (continious rubbin that lefta bur, etc...
 
that stand bottom duz not look too bad. I caught an edge view of the shaft - that can;t B buffed out, I'd say geta new one. The rocker bushings therefore need checking. Look to their big circle insides.
Also get something fairly soft for the hole (it's steel so can be a lill hard but not tie wire or ike that. No compressed air? Some ina can for the 'puter, ora brake cleaner straw & a shot in there?

I' glad U went further it looks like it ran dry a good while, some (not extensive) dammage...
The stands need ckin as they slid across that nasty p.r.shaft. These R all softer meatls than the shaft...
 
A WOOD BLOCK

Thank you so much, the wood block and a mallet slides the towers off like butter.

I have been using carb cleaner with the red straw to blast through the little holes in the rockers. I also use two little brushes, pictured below to do some scrubbing.

Not sure what a shaft is supposed to look like but a new one is only $25 so I may just get a new one anyway. Do I have to do any break in stuff when adding a new shaft?

Rocker Bushings
https://photos.app.goo.gl/DJc7pmk861Wh6zdN8

Tools
https://photos.app.goo.gl/UciNAQTYBs5AppDi6

Rocker Hole
https://photos.app.goo.gl/LGfFh2SYa4WMDAbX6
 
So what does the inside of the rocker shaft look like did you pull the end plugs out? What does the outside of shaft look like we're each rocker operates? The bottom side of the shat is were you will find wear if it wasn't oiling properly. Pictures are a kind of blurry looking to me compared to your other pictures. Best of luck (y) :nod:
 
"...the outside of shaft ..."
deep scorring, take a look above'n tell - us what U think, no use on cleaning, 'buffing".
U geta lill peak, bubs - in the 1 he lables 'towers'.
Do U know any tolerance on the rocker bushins. Hate to C im jamb ol rockers ona new
shaft just to need them bushed later (I guess U can press em out/in?).
 
Alright so all the rockers are off the shaft.

I am thinking the best route would be to just get a new assembly. As Chad said I don't want to get a new shaft when my rockers and towers won't even fit.

Here are some pictures of the shaft and some rockers, one might have damage, but other than that one I think they are all good. The shaft has some wear or shinny metal where the rockers were that has formed a 'lip' or 'ridge'. Is that how these shafts are designed or has some of the shaft been worn away?

I haven't opened up the shaft yet...

Also the last rocker was a fight to get off and didn't just twist off like the others. My gut is telling me get a full assembly, what do you guys think?

1. Close Up of Shaft (you can see the ridges)
https://photos.app.goo.gl/S862imDd8fviSYTL9

2. Possibly Damaged Rocker
https://photos.app.goo.gl/jvxF8PyJgvdtpku5A

3. Typical Rocker (seems fine to me)
https://photos.app.goo.gl/sLD4hw5p8S4oWrSa9

4. Another Shaft Photo
https://photos.app.goo.gl/TayoGeQxVBttt4kK8




Here is a link to all the photos:
https://photos.app.goo.gl/n9MDfLroGJfaFYVD7
 
Yes you are correct that one picture shows significant wear to the shaft and maybe the even its rocker bushing as it also shows signs of damage. So you have one or two choices to eigher repair your assembly or buy a rebuilt assembly or replace the shaft and that one rocker if you think all or most of the other rockers are still good. The only way to know this though is to measure the shaft OD size anywhere except where rocker arms are operating (this is the orginal size of rocker shaft) and then compare the two sizes. Next also measure the ID of rocker bushings and determine the rocker arm clearance. As you can see the normal place for the rocker arms and the rocker shaft to wear is on the bottom side of shaft and rocker arm. This is due to the lifter and push Rod pushing up on the rocker and against the valve and its spring then add it a lack of oil to lube in this high friction area to cause even more accelerated wear.

:unsure: To really see and feel the looseness of the rockers on the shaft as an experiment try each rocker the anywhere on the shaft that's not showing the ware. Does the rocker feel loose or is it fairly snug. If they are fairly snug i.e. About .001 to .002 of clearance than a new shaft will make a lot of difference, you than could replace any of rockers that are much looser than average. Add up the cost of the parts needed and see if it's a benifit to replace those parts over just exchanging for a rebuilt set. Your engines going to run a bit better and probally be a little bit quieter sounding once those worn out rocker parts are rebuilt. Good luck (y) :nod:
 
Yeah that shaft is shot and maybe several rocker arms. Unfortunately it doesn't look like the non-adjustable rockers are available anymore. They were a few years ago. I'd look for some NOS on ebay.
 
Thanks for the support and for encouraging me to go all the way on this one. :beer:

Combining the new parts with the old parts doesn't give me that warm and fuzzy feeling. I have been looking around and I found kanter.com that has non-adjustable and adjustable. the adjustable are a bit cheaper that the vintage inline site.

https://www.kanter.com/productdetail.as ... er=Gallery

I emailed them already to see if I need the ball and cup push rods for the adjustable since it is the same price, I could get a bit of an upgrade in the process as the adjustable are a bit better according to the tech section. But I might just get the non-adjustable. Any thoughts on Kanter or the adjustable v non-adjustable?
 
With the adjustable rocker arms you will also need to change the push rods over to the cup type. Another place you can try for rebuilding services and or exchange service is RAU "Rockier Arms Unlimited". http://rockerarms.com

They were a company that also made the higher ratio 1.6 ratio adjustable rocker arms :nod: (y)
 
I bet there are some people right here on this forum with a pile of good used non adjustable rocker arms laying around. I know I have some to spare.
 
Been browsing on the forum and I have to know something... why did this happen?

The car was sitting for about 10 years before I got it in 2018. Assuming the gunk build up from that. I also may have low engine oil pressure I tested it with a 500psi gauge that gave me very low readings but it was the wrong gauge.

Since the car is sitting until I get my rocker shaft I can’t test the pressure.

My plan is to get the new rockers on and be done with that part. Also I should expect a mess when I start the car with the valve cover off and a new rocker assembly.

Once that’s done I’m going to test pressure with the proper gauge then pull the oil pan and replace my rear main, and oil pump and screen.
 
Hey guys wanted to give you all an update.

New rocker assembly came in yesterday from Rocker Arms Unlimited. If this is what a good rocker assembly is supposed to be like then mine was awful! I have it soaking in oil right now.

In the meantime the oil pan is off! It was awful to get off because it was glued on with gasket sealer. The rear gasket is a disaster and I am still working to get that off. Once the block is cleaned up I am going to unbolt the last cap and replace the rear main seal, any tips or tricks on this? I am follow this thread on another forum. Rear Main Seal Thread The last cap is the two bolts I have in the link below right?

While I am in there I am also going to swap out the pump and screen.

This is the rear cap where the rear main seal lives?
https://photos.app.goo.gl/ek4jDK8BaP2GPm9R6

New Rockers (y)
https://photos.app.goo.gl/vhvDgz7rDFc5h3v88
 
You must log in or register to reply here.
Back
Top