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  "Dry" Rocker on #3 Cylinder

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Author Topic:   "Dry" Rocker on #3 Cylinder
Boss Hoss
Gearhead

Posts: 223
From: Georgia
Registered: Mar 2001

posted 12-22-2001 06:44 PM     Click Here to See the Profile for Boss Hoss   Click Here to Email Boss Hoss     Edit/Delete Message   Reply w/Quote
OK, I have finally gotten my 289 V8's valves adjusted pretty well, thanks to all the great advice from Moneymaker, Steve, and others here at Mustangs and More!

I cut a slot in an old valve cover to watch my rockers (and to adjust them further, if needed). Ya know that little stream of oil that squirts from the little hole at the top of each rocker and splashes down onto the rocker's adjusting nut? On my #3 cylinder's intake valve, I noticed that the rocker does not have that little stream of oil. It's bone dry. I took a toothpick and tried to see if there was anything blocking the hole, but there doesn't seem to be anything there.

What's wrong? Is this a bad thing?

------------------
*andy* ([email protected])

also known as...***Boss Hoss***

*1965 Mustang 289 coupe*
*1996 Mustang GT coupe*

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n2oMike
Gearhead

Posts: 2305
From: Spencer, WV
Registered: Jan 2001

posted 12-22-2001 06:58 PM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
Oil gets to the rockers through the hollow pushrods. See if Your #3 pushrod is clogged... which is very common. If it's clear, you'll be able to see through it (when holding it up to the light).

Good Luck!

------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367

[This message has been edited by n2oMike (edited 12-22-2001).]

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PetesPonies
Journeyman

Posts: 8
From: Pasadena, MD
Registered: Dec 2001

posted 12-23-2001 11:51 PM     Click Here to See the Profile for PetesPonies   Click Here to Email PetesPonies     Edit/Delete Message   Reply w/Quote
and yes it is a bad thing, find the problem.

------------------
Pete's Ponies
Mustang RUSToration & Performance

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Moneymaker
Administrator

Posts: 25052
From: Lyons, IL, USA
Registered: May 99

posted 09-16-2002 06:56 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
If there are no mechanical problems, then the rocker adjustment is a bit to tight.

------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

NHRA/IHRA/SRA/MCA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl

Quote: "I never met a magazine mechanic I liked."

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69 Sportsroof
Gearhead

Posts: 1823
From: Valley, Alabama, USA
Registered: Mar 2002

posted 09-16-2002 07:06 PM     Click Here to See the Profile for 69 Sportsroof   Click Here to Email 69 Sportsroof     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by 66MustangGTCoupe289:
my pushrod is not rotating one of my rocker arms. whats wrong/how dow i fix?

That sounds like a cam lobe has been rounded off. You fix that by replacing the cam and lifters.

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Moneymaker
Administrator

Posts: 25052
From: Lyons, IL, USA
Registered: May 99

posted 09-16-2002 09:45 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Yes.

------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

NHRA/IHRA/SRA/MCA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl

Quote: "I never met a magazine mechanic I liked."

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Hell_Fish
Gearhead

Posts: 860
From: Austin, TX.
Registered: May 2002

posted 09-17-2002 02:22 PM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
Andy,
Check the push rod. I found a handful in my 302 to be blocked up. I also, found some lifters to be blocked as well. I used a piece of thin wire and a small drill bit the clean out the push rods. I used the drill bit the clear the clogs at the ends where the clogs were the thickest. Then I use the wire and pushed it all the way through. After I was done, I sprayed brake clean in it. A few time I thought the rod was cleared until I sprayed the Brake clean. It would start to go through then clog again. On my lifters, I just replaced the ones that looked clogged.

------------------
Dustin C
[IMG]http://pages.moparpages.com/duster/sigs/hell_fish.gif[/IMG]
56 F-100
Mech. for wifes 69 Mustang coupe
65 Plymouth Barracuda
70 Dodge Swinger

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mustangzrule
Journeyman

Posts: 87
From: Orion, MI
Registered: Sep 2002

posted 09-18-2002 08:36 AM     Click Here to See the Profile for mustangzrule   Click Here to Email mustangzrule     Edit/Delete Message   Reply w/Quote
Lifters can get gummed up so bad that they stay in the compressed position. This would effectively not allow the oil to be pumped up through the pushrod. I have seen this many times on older sludgy engines.

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mustangzrule
Journeyman

Posts: 87
From: Orion, MI
Registered: Sep 2002

posted 09-20-2002 10:32 AM     Click Here to See the Profile for mustangzrule   Click Here to Email mustangzrule     Edit/Delete Message   Reply w/Quote
Thanks for the welcome - hard to miss that.

The lifters can be cleaned out with mineral spirits, diesel fuel, lacquer thinner. To do it, you put the lifter in a vise with cloth around the machined surfaces. Then use a small screwdriver to pry out the retaining clip in the top - easier to do if you press in on the top of the lifter. All parts come out with a little work and can be de-gummed.

I did this on my old '68 302 and it ran fine for a whole summer. When I changed to the 351 and new cam, I went with new lifters.

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ice'68
Gearhead

Posts: 127
From: Fresno, CA
Registered: Apr 2002

posted 09-20-2002 10:55 PM     Click Here to See the Profile for ice'68   Click Here to Email ice'68     Edit/Delete Message   Reply w/Quote
Hey, MustangzRule...how was the swap from the 302 to the 351? I'm planning on doing it myself. Just wanted to know what kind of difference you noticed and if you could really feel it.

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mustangzrule
Journeyman

Posts: 87
From: Orion, MI
Registered: Sep 2002

posted 09-25-2002 11:07 AM     Click Here to See the Profile for mustangzrule   Click Here to Email mustangzrule     Edit/Delete Message   Reply w/Quote
Ice...
Hardly any comparison. I built a 408 stroker with all the goodies and the car, how do I say this? freakin' scares me. For details, we could start a new forum thread and archive the details for all to see. It really makes the blue oval people drool and the chebby lovers scowl.

Only got beat once and the guy had a 383, 6 speed, posi 355, and 11 psi boost.

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