Engine/Transmission (1994 - 1998) 60 psi valve spring change

[qkoop]

Took the valve covers off to do the spring swap and noticed that the rocker tower is held in place with a head bolt. Was wondering if i could just remove circle clip and slide the rocker shaft instead of removing the tower. I don,t really want buy a torqe wrench for this to retighten head bolts. I already had to buy a good valve spring compressor tool and im scared to ask my wife if i can by a torqe wrench, because i told her i need a new snap-on timing kit. I guess i'm just afraid to get the look!!! The married guys know the look i'm talking about.

 

[C Schomer]

Mark the bolthead on the tower and retighten it to where it was before you removed it. That way you won't change the tq. . You shouldn't retorque just some of the bolts anyway. Craig

 

[A Johnson]

Yes, you can take the snap ring off and slide the rocker off. #6 is a bit of a bugger but overall it works fine.



A Johnson

 

[JoshPeters]

Without a Torque wrench I would NOT remove those bolts. In theory, marking the bolt would be a good idea, but I have found on other engines, Stretch bolts (torque to yield) will turn differently almost every time. I have never pulled the head off my truck, so I do not know if it is just a torque bolt or as I said Stretch bolt.



Josh

 

[bighammer]

I would bet you could rent a torque wrench for an afternon for lunch money. Sounds easier than the rocker disassembly to me. JMO though. Good luck with it.

 

[USMCBay]

Gotcha....

Not sure about the torque wrench but I do know about the LOOK.

I joined TDR and went nuts. 'Til... ... ... . you know. That look. Actually that look is like a regulator. Or else I would have my truck fully modified in a few weeks. :-laf

So for my B-Day I got a generous gift certificate to sears... Guess what I have in mind? A torque wrench.



And the # 6 has alot of insulation above it. Be carefull to keep it out of your valves. Mine had alot of grit in it.

Have fun !!!

 

[C Schomer]

I didn't know you can pull the rocker pin. I think I like that idea! Craig

 

[qkoop]

I was kinda concerned about bolt strech to so that why i thought i would ask. Say has anyone ever marked a head bolt and checked the difference after retorqed it to spec. ?Well ihad better go ijust got the look.

 

[JoshPeters]

I do it on Rear differential pinion nuts all the time. Head bolts, I have had mixed results. If they are torque to yield type bolts, it's quite rare when I've had them match up.

 

[1dslram]

I use a torque wrench on mine, I set it a 10# less that the true touque setting and on all but two of the bolts they lined up with the marks the other two were slightly tighter that the marks.

Harbor Freight has a 1/2 torque wrench for less than $10. 00 on special now.

Bruce

 

[dremelts]

Originally posted by 1dslram

Harbor Freight has a 1/2 torque wrench for less than $10. 00 on special now.

Bruce

Just curious if anyone has used a torque wrench from Harbor Freight? Are they accurate? durable?

 

[Matt42]

Originally posted by dremelts

Just curious if anyone has used a torque wrench from Harbor Freight? Are they accurate? durable?

I am also curious. I will need to replace my old clicker 1/2 inc drive wrench soon. The thought of using a $10 Chinese torque wrench on a $9,000 engine is a little scary. I think I'd brave THE LOOK for a Snap-on or a Craftsman. (Actually, after I installed A/C from scratch on a FSJ for $100 in tools, I never again got THE LOOK. )

 

[Josparkz]

Just make sure you barred the engine to get the pistons up. You don't want to drop a valve.

WHOOPS

 

[JWRowe]

torque

The manual for my 96 gives six (6) steps for this proceedure. They are below.



1. Clean block and cylinder head and dry.

2. Install gasket correctly.

3. Carefully install head onto dowels.

4. Install pushrods and rockers.

5. Lube head bolt threads and underside of head bolts with clean engine oil.

6. Step 1. Tighten all bolts in sequence to 66 ft. lbs.

Check torque on all and retorque if necessary.

Step 2. Tighten all long 12 mm bolts to 89 ft. lbs.

Check torque on all and retorque if necessary.

Step 3. Tighten all bolts in sequence an additional 90 degrees.



This is for 96 12V but I would expect the same for any 12V engine. I don't know the specs for a 24V.

Hope this helps.



Regards, John

 

[1sand0s]

Originally posted by Matt Shumaker

(Actually, after I installed A/C from scratch on a FSJ for $100 in tools, I never again got THE LOOK. )

I must agree.

When you get the "look" about a new tool..... invite your spouse to call a local garage for a quote on the "repair". (Mods are "repairs" right? )

The tool is nearly always cheaper than the labor on the "repair". I find that it gets me out the door with a smile instead of the "look" if there is ever a question. Makes for a nice toolbox too after a while... .