Stroker Renewal?

[xj-grin]

Any progress Chris?

I bought a caliper... sick as a dog and at home today. If I get a second wind I might wander to the garage and see if I can figure out how to execute my pre-load testing instructions on a cylinder or two...:wierd:

 

[JJacobs]

Priming lifters like that is a huge no-no, as you've found out. Submerge 'em if you want, but don't attempt to prime them out of the engine! A drill through the distributor hole works great to prime a new engine safely. You'll notice doing that that only a few pushrods will be oiling at a given time, you need to turn the crank to a few different spots to get oil out of all the pushrods.

 

[xj-grin]

Priming lifters like that is a huge no-no, as you've found out. Submerge 'em if you want, but don't attempt to prime them out of the engine! A drill through the distributor hole works great to prime a new engine safely. You'll notice doing that that only a few pushrods will be oiling at a given time, you need to turn the crank to a few different spots to get oil out of all the pushrods.

Yeah, info I wish I'd had a week ago. I actually did both - pre-primed the lifters and primed with a drill in the distributor... They all oiled without turning the crank - should that tell me something too??

 

[JJacobs]

Honestly it's been a while since I did that with a 4.0, so it might not be accurate with that engine. On my 401 and a lot of other V-8's the lifter blocks the oil passage when the cam lobe's at full lift= no flow out of that pushrod until the lifter comes back down the bore a bit.

 

[Frank Z]

Doesn't apply to cam saver lifters.

 

[JJacobs]

That may be true Frank, but those are usually only used in an attempt to tame an overly large cam.

 

[xj-grin]

That may be true Frank, but those are usually only used in an attempt to tame an overly large cam.

or in Frank and my case, in order to tame the fear of repeated cam failures in 4.0+ strokers (Franks is a more personal experience) :gee:

 

[JJacobs]

I see how well they worked for him.

 

[Frank Z]

I only had 1 cam failure and was not using Crower Cam-Savers then. I installed a Crower Cam and lifters AFTER the Crane Cam shit the bed.

 

[Frank Z]

For those not familiar with the Cam Saver lifters:

CAMSAVER HYDRAULIC LIFTERS​

The maximum in cam lobe and lifter life.
If high spring pressures or extreme and
unusual operating conditions have you
worried about lobe scuff and lifter wear,
insist on Crower “high-lube” CamSaver
lifters. These lifters deliver 20% to 30%
more oil to your lobe and lifter faces
for the best possible insurance against
premature lobe and lifter failure. Specially
machined flats put 12 to 16 ounces
of additional oil per minute at each lobe
without adversely affecting engine oil
pressure (nominal drop of just 1 or 2
pounds). Crower CamSaver lifters incorporate
the same precision ground radius
face and finish as our standard lifters to
insure quick break-in and trouble​

free operation.

 

[JJacobs]

Where does it say it's ok to pump those lifters up before putting them in the engine? That's just something I would never do regardless of whether or not you can get away with it. Lifters pump up within about 20 seconds and you don't have to worry about piston to valve contact, coil bind or any of that other fun stuff.

Also in the lifter description it says "high spring pressures or extreme and unusual operating conditions" none of which a stroker motor should have. If these are needed there's something else going on.

 

[Frank Z]

It doesn't say it anywhere.

I'd have to say that extreme is a subjective discriptor, not an objective one. Full throttle romps thru a boulder field, fairly extreme. Slow speed crawl up and over a curb at the mall....not so much.

Another thing to keep in mind is that not all strokers are created equally. Take a gander at what JPMagazine did with theirs. Overbuilt and it most certainly will see extreme duty. Seems there are more people buying Yella Tera rockers and upping the seat pressure by using stiffer springs as well.

Considering the amount of cam failures (not just in strokers) in the last few years, cam savers make sense. The cost is low enough to make it a no brainer with regards to helping achieve a more reliable and long-lived stroker.

 

[xj-grin]

I agree as to the cost/benefit -- the incremental price difference on the cam savers v. regular hydraulic lifters was minimal, and more oil to the lobes is a good thing, regardless.

As to the pre-priming/hand pumping - live and learn, I won't be doing it again.:thumbup:

 

[YELLAHEEP]

As to the pre-priming/hand pumping - live and learn, I won't be doing it again.:thumbup:

Well, at least not to the engine lifters......... :roflmao:

 

[xj-grin]

Well, at least not to the engine lifters......... :roflmao:

doh - I Danny'd. :wierd::roflmao:

 

[Frank Z]

Update?

 

[xj-grin]

sick, sick, sick. I just stumbled into work, but I'm not sure how long I'm going to last.:rattle:

 

[old_man]

I feel for you. I was diagnosed with the flu two weeks ago. Took the Tamiflu, but still feel pretty crappy.

When is the winter going to end??????

 

[xj-grin]

I feel for you. I was diagnosed with the flu two weeks ago. Took the Tamiflu, but still feel pretty crappy.

When is the winter going to end??????

ya know, I took a 1/2 hour power nap yesterday evening, and woke up feeling 90% better... might even get out to the garage tomorrow.

I read an article last week that tamiflu is completely overhyped, and only has any effect in less than 15% of folks who take it --chicken soup, rest and a positive attitude my man! Hope you feel better soon!

 

[JJacobs]

NEVER!!!!