Rocker Arm Adjustment

gibbo69olds · 09-26-2007, 11:11 AM

OK, I need some help. I want to know how to adjust the Rocker Arms in an olds 455? From what I have been able to find it sounds like you simply replace the push rod, the rockers, the rocker pivot, ensure that the lifters are down and tighten the rocker bolts to 25 ft -lbs. Is this correct? I have had issues with rocker arm adjustments on a chevy so I want to make sure I am doing this correctly.

Thanks in advance for the help

442Harv · 09-26-2007, 05:16 PM

Olds valve train is not ajustable like Chevy. If you are just replacing one set, you should be OK. But if you had a valve job done and new cam, you need to check the lifter pre load. You make the addjustments buy shimming the pivots, or getting the correct push rods. It is not that hard, just not as easy as a Chevy. You can buy a adjustable rocker system, aftermarket for Olds

gibbo69olds · 09-27-2007, 05:19 AM

I am actually not replacing anything any of the valve system. I am just changing the head gaskets. So I had marked evrything and placed everything back from the place they came from. So I should be all set. Torque down to 25 ft-lbs, right? Thanks for the help.

442Harv · 09-27-2007, 06:11 AM

Yes, just bolt it up and torque it to spec. Make sure you keep the rockers, and pivots and push rods, in the same location they are, don't mix them up, and you will be OK. You may want to check the pivots and rockers, for wear, and replace if needed?

gibbo69olds · 09-27-2007, 08:45 AM

Yup I laid everything out perfectly and everything should be back in its original location. The only issue I have is I broke one rocker pivot so that will be different. I would replace the entire valve train if I had the time but I need the car running in a week. I am getting married and I want my car in the pictures. I have plans to build up a motor with an extra block and heads I have laying around. Hopefully this winter. Thanks again for the help.

64Rocket · 09-29-2007, 01:16 PM

The reason you broke the pivot is you put it on with the cam lobe up. You should put the rocker set up on with the lobes down. Rotate the engine each time you put the rockers on with no presure on the springs.

Geno..

gibbo69olds · 10-01-2007, 07:27 PM

I actually broke it when I was taking it apart, but thank you anyway. See if you can help me with m new question. Putting it up now.

The_Jeremiah · 04-24-2008, 10:43 AM

Quote:

Originally Posted by gibbo69olds

I am getting married and I want my car in the pictures.

*tear*, Thats the most beautiful thing I have ever heard!

gibbo69olds · 04-24-2008, 11:16 AM

Funny you should reply to this now. Car ran great for about two months, had it in the pics for the wedding and everything looked awesome, I actually should post a couple so you guys can see. Unfortunately, I was driving it down to my buddies place in CT and had some god awful sounds from the engine. Took it apart yesterday and a rocker arm bolt broke. I am currently trying to get it out and I am going to buy an adjustable kit like mentioned before. Still trying to build my motor from the ground up

70oldsW30 · 04-24-2008, 12:14 PM

Quote:
Originally Posted by gibbo69olds

I am getting married and I want my car in the pictures.

Quote:

Originally Posted by The_Jeremiah

*tear*, Thats the most beautiful thing I have ever heard!

That's actually pretty darn funny.

gibbo69olds · 04-24-2008, 12:29 PM

do it, I am so happy we did and they came out great!! I will try to remember to get a few up as soon as I can.

09-26-2007, 11:11 AM	#1 (permalink)
gibbo69olds Member Join Date: Apr 2006 Posts: 25	Rocker Arm Adjustment OK, I need some help. I want to know how to adjust the Rocker Arms in an olds 455? From what I have been able to find it sounds like you simply replace the push rod, the rockers, the rocker pivot, ensure that the lifters are down and tighten the rocker bolts to 25 ft -lbs. Is this correct? I have had issues with rocker arm adjustments on a chevy so I want to make sure I am doing this correctly. Thanks in advance for the help

09-29-2007, 01:16 PM	#6 (permalink)
64Rocket Member Join Date: Sep 2006 Location: Union City Calif.94587 Posts: 57	The reason you broke the pivot is you put it on with the cam lobe up. You should put the rocker set up on with the lobes down. Rotate the engine each time you put the rockers on with no presure on the springs. Geno.. __________________

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
81-88 Chrome Rocker Panels!!	OneLow87	Parts For Sale	0	04-15-2007 06:36 PM
lean adjustment stop	DonFrost	Small Blocks	2	12-30-2006 08:21 AM
61 Olds 88 rocker panel trim needed	<David C>	Parts For Sale	1	11-25-2006 03:35 AM
61-62 olds 88 rocker panel trim needed	<David C>	Parts Wanted	0	12-04-2004 03:45 PM
adjustment after cat converter removal	rickie	Transmission	1	01-11-2003 11:34 PM

09-26-2007, 05:16 PM	#2 (permalink)
442Harv Member Join Date: Mar 2007 Posts: 59	Olds valve train is not ajustable like Chevy. If you are just replacing one set, you should be OK. But if you had a valve job done and new cam, you need to check the lifter pre load. You make the addjustments buy shimming the pivots, or getting the correct push rods. It is not that hard, just not as easy as a Chevy. You can buy a adjustable rocker system, aftermarket for Olds

09-27-2007, 05:19 AM	#3 (permalink)
gibbo69olds Member Join Date: Apr 2006 Posts: 25	I am actually not replacing anything any of the valve system. I am just changing the head gaskets. So I had marked evrything and placed everything back from the place they came from. So I should be all set. Torque down to 25 ft-lbs, right? Thanks for the help.

09-27-2007, 06:11 AM	#4 (permalink)
442Harv Member Join Date: Mar 2007 Posts: 59	Yes, just bolt it up and torque it to spec. Make sure you keep the rockers, and pivots and push rods, in the same location they are, don't mix them up, and you will be OK. You may want to check the pivots and rockers, for wear, and replace if needed?

09-27-2007, 08:45 AM	#5 (permalink)
gibbo69olds Member Join Date: Apr 2006 Posts: 25	Yup I laid everything out perfectly and everything should be back in its original location. The only issue I have is I broke one rocker pivot so that will be different. I would replace the entire valve train if I had the time but I need the car running in a week. I am getting married and I want my car in the pictures. I have plans to build up a motor with an extra block and heads I have laying around. Hopefully this winter. Thanks again for the help.

10-01-2007, 07:27 PM	#7 (permalink)
gibbo69olds Member Join Date: Apr 2006 Posts: 25	I actually broke it when I was taking it apart, but thank you anyway. See if you can help me with m new question. Putting it up now.

04-24-2008, 11:16 AM	#9 (permalink)
gibbo69olds Member Join Date: Apr 2006 Posts: 25	Funny you should reply to this now. Car ran great for about two months, had it in the pics for the wedding and everything looked awesome, I actually should post a couple so you guys can see. Unfortunately, I was driving it down to my buddies place in CT and had some god awful sounds from the engine. Took it apart yesterday and a rocker arm bolt broke. I am currently trying to get it out and I am going to buy an adjustable kit like mentioned before. Still trying to build my motor from the ground up

04-24-2008, 12:29 PM	#11 (permalink)
gibbo69olds Member Join Date: Apr 2006 Posts: 25	do it, I am so happy we did and they came out great!! I will try to remember to get a few up as soon as I can.