Today's Message Index:
----------------------
1. 12:52 PM - Re: valve lift (TeamGrumman@AOL.COM)
2. 08:51 PM - Variprime Shelf Life (Steven Jackson)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 8/28/04 1:32:21 PM, pilot172m@netzero.net writes:
>
> I saw your post on the Team Grumman site and I have a question.=A0 I am
> wondering about my 0-320-E2D and I have measured the total lift at the valve
spring
> retainer.=A0 I have measured using my magnetic base dial indicator with a=20firm
> base and came up with the following.
>
>
>
> Since you are the resident expert and usually have been there & done that,
> I have a question for you. My 1976 172M sat for 12 years and I resurrected
> her from a certain death. She has been brought back to life and the engine now
> has about 160 hours since coming back to life. (1,450 TTSN)
>
> I have added a spin on filter, cut it every time with only some very minute
> ferrous material picked up and only when I do the solvent soak method. Oil
> analysis looks tremendous. However, I have been afraid that a cam/lifter may
go
> at any time. I probably will pull a cylinder to take another look, but I
> thought I'd measure valve lift to give me a baseline to look at mean while.
>
> I pulled the rocker covers and I used my magnetic base dial indicator to
> measure the travel of the valve at the retainer. I know that this would add some
> variables to the final result but here's what I came up with.
> #1 Ex.--.501" In.--.400"
> #2 Ex.--.505" In.--.402"
> #3 Ex.--.487" In.--.411"
> #4 Ex.--.505" In.--.448"
>
> The exhaust lift is within reason, but the intake has me worried. Have you
> ever tried this method before? Do you have an 0-320-E2D around to compare=20it
> with? I would gladly pay you for your time.
>
> Is it worth a deeper look or would you just continue to monitor the oil,
> filter and recheck the lift at the next oil change? The engine seems realitively
> smooth and it has 2400 rpm with full power ground check.
>
> I would appreciate any advise that you may have.
>
Remember, a couple of vlaves share the same lifter. All of the lifts should
be about the same. Remove the rockers, push rods, and lifters. Thoroughly
clean everything with carb cleaner. When you disassemble the lifters, (you
are using the overhaul manual, right?) make damn sure you keep the lifter
parts together where they came from. They are custom fitted. When everything
is clean and dry, put the lifters back in. Measure the lift at the lifter.
Rotate the engine backwards or the oil pump will start refilling the lifters
and mess up your measurements.
Then, let me know what you measure.
Gary
>
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Variprime Shelf Life |
--> TeamGrumman-List message posted by: "Steven Jackson" <steven.jackson14@adelphia.net>
Anyone know how long Variprime is good for in the can? I've got some left
over from painting the firewall and thought I could use it on my stabilizer
if it was still good. If its junk, then I'll get some more.
Steven Jackson
N1434R
L22
Yucca Valley, CA
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|