Slack in new rockers?

[Dantheman1540]

This will take care of the slack

 

[Geotrash]

This will take care of the slack

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I run that in my Cessna 182. Protects solid lifters really well!

 

[Dantheman1540]

I run that in my Cessna 182. Protects solid lifters really well!

Its really popular in those old Continental GPUs people put in airboats down here. Not cheap or easy to find anymore tho.

 

[Geotrash]

Its really popular in those old Continental GPUs people put in airboats down here. Not cheap or easy to find anymore tho.

Yep, the 182 has a Continental O-470. 470 cubic inches and only makes 230HP, but it can make full rated power all day long. Try running a modern automotive engine at full power 100% of the time and see how long it lasts. Lol.

 

[Dantheman1540]

Hard to pull over when you have an issue in the air haha.

 

[iamdub]

Any objections to going with a full roller set?

Of course the pita part would be having to verify rocker geometry afterwards...

200% unnecessary in both function and cost. This is a 215K-mile 5.3 that just ended up with a few upgrades while apart for an AFM delete. I'm not gonna invest into the valvetrain twice what the engine's worth!

 

[iamdub]

Do you still have that comp set?

I do.

If you do, thought about sending them an email?
If you can proove you bought them new, it might be more likely they would replace them.

Never thought about pursuing any kind of compensation since I bought them over ten years ago. It was installed in a set of 31K-mile rockers from an LQ9. Things happened and projects changed and they were forgotten about until my brother needed rockers for his 5.3 (100% stock LM7). Not long after I put 'em in his engine, I ran across old threads from back around that era about them failing. After being in my bro's truck for maybe 10K miles, I replaced them with new OEM ones I had slated for mine. I took some apart a couple months ago and found what appeared to be beginning stages of the failures reported.

I guess it wouldn't hurt to fire off an email. But, honestly, I don't want their kit. Not even now.

 

[iamdub]

I've had to use an adjustable pushrod to figure out correct pushrod length when building an engine.

They also make roller rockers with adjustable seats that the pushrod sits in, so no need to have the perfect length pushrod, but that would be tedious setting them all up correctly, lol

Apparently, with roller tip rockers, there's more involved than just trying a length, studying the wipe pattern, etc. IIRC, it's something with measuring at half arc or some other extra BS.

I used an adjustable one for mine. Also did the zero lash plus counted turns method and studied the wipe pattern. All three agreed with each other so I ordered my rods accordingly.

 

[Just Fishing]

I've had to use an adjustable pushrod to figure out correct pushrod length when building an engine.

They also make roller rockers with adjustable seats that the pushrod sits in, so no need to have the perfect length pushrod, but that would be tedious setting them all up correctly, lol

I hate setting up a valve train.
With my engine and the full rollers, i swear i had it perfect using the light springs and a magic marker.
But what do i find when i tore my engine apart?
The wipe pattern on the valves is slightly inboard...

I have the adjustable push rod, and now i have dial calipers that can precisely measure that adjustable pushrod.

Oh what fun awaits me!

 

[iamdub]

Soooo...

I got home from work much later than I wanted, but still had daylight. I started with the passenger side since it's the hardest. I removed the #2 exhaust rocker and, lo and behold, it has about the same radial slack in it. I SWEAR I have never noticed that in any stock rockers.

Anyway, I removed all the rockers and I'm soaking the new ones over night to install tomorrow. I'm also gonna reinstall the original pushrods as a test. I'm disappearing for the weekend so I gotta have it roadworthy by tomorrow afternoon.