Corvair DiagramCorvair Photo
Corvair Center
home forum corvairs calendar links Corvair Podcast
California Corvairs
Clarks Corvair
Clarks Corvair
“CORSA"



Chevy Corvair License Plate
Chevy Corvair Chrome Wheel
Corvair Center Forum :  Corvair Center Phorum The fastest message board... ever.
Corvair Center 

Current Page: 1 of 47
Results 1 - 30 of 1388
4 months ago
Bob Helt
Richard1' Not trying to be argumentative. But isn't true that the CK-4 spec is actually very similar to the Ford spec and that Ford's test did NOT use a CK-4 spec oil????? Didn't Ford run their test using a CK-4/SN spec oil that is known to have reduced valve train protection? Bob Helt
Forum: Corvair Center Forum
5 months ago
Bob Helt
The March issue is a nice-looking layout with good proportions and balance. But the text font used for the articles is not good. It has a varying density that ruins the overall appearance in my opinion. That text makes the whole article looks like the printer was running out of ink. May I suggest a change in fonts in the future? Bob Helt
Forum: Corvair Center Forum
5 months ago
Bob Helt
My thought is that your YH accel punp diaphragm is hardened and not functioning. Bob Helt
Forum: Corvair Center Forum
5 months ago
Bob Helt
Several people have mentioned a possible interference if the lifter was adjusted when full of oil. They cited a situation where the valve would be held off its seat. This is just plain myth and a non-problem. Just think for a minute. You are saying that with the lifter full of oil it won't collapse when you set the adjustment, thus the valve is higher by the anount you have turned the ad
Forum: Corvair Center Forum
5 months ago
Bob Helt
RexJohnson Wrote: ------------------------------------------------------- > Some lifter manufactures say to Not prime the > lifters. You would think that they would know what > they are talking about since they made them. The Corvair shop manuals tell you to even fill the lifters with oil prior to installation. Maybe Chevrolet knows better about what they are talking about since
Forum: Corvair Center Forum
5 months ago
Bob Helt
vairmech Wrote: ------------------------------------------------------- > Everyone knows that the plastic bushing in the > front for the shift tube sucks big time. It stays > in for a while then pops out or breaks. Not everyone. Maybe most know, but I didn't. I still have the original whole shift tube setup in my '62 Convert working with no problems. Bob Helt
Forum: Corvair Center Forum
5 months ago
Bob Helt
Well, Frog,Let's look at this logically What is the desired condition of the lifters after you finish your engine work? Do you want them full of oil or just partially full so that they can click and clack to alert everyone to your Corvair? Of course you want them FULL of oil. Condition 1 Install the lifters as they come from the supplier. The lifters will nornally have little oil. Start
Forum: Corvair Center Forum
6 months ago
Bob Helt
Sorry, Last one should be 15W-40 Super Duty Bob Helt
Forum: Corvair Center Forum
6 months ago
Bob Helt
When you want to purchase 10W-30 oil for your Corvair, it's hard to know those oils that meet the desired phosphorus levels. So here are my recommendations. As Richard1 has suggested look for either CI-4 or CJ-4 in the API donut. But as these oils are being phased out, you can now look for the 10W-30 container that has CK-4 in the top of the donut. But you DO NOT want any oil that has C
Forum: Corvair Center Forum
6 months ago
Bob Helt
So the most common viscosity of 10W-30, for some unknown reason is available both as a pure CK-4 diesel oil and also as a CK-4/SN oil that is applicable to both diesel and gasoline engines (called a universal oil) at many major oil distributors. But unless you really understand the API rating system (Who does?) you will never know that the CK-4 rated oil will have phos within the range of 0.1%
Forum: Corvair Center Forum
6 months ago
Bob Helt
For what year convert. is this switch? They were different you might remember. Bob Helt
Forum: Corvair Center Forum
6 months ago
Bob Helt
Lee said: And that is with the blower the car was built with in 1966. Corvair heaters work great if you take the time sealing them up so the hot air isn't lost before it reaches the interior. Bob adds his opinion. But don't use METAL 4" hose as is used for home clothes dryers. Get the correct rubberized fabric hoses. Bob Helt
Forum: Corvair Center Forum
6 months ago
Bob Helt
Use the studs that are there. If you replace any, use std size. Stress test them as already suggested. If threads are there, double nut them. Bob Helt
Forum: Corvair Center Forum
6 months ago
Bob Helt
Please have some patience with me here, as I try to learn. I do not understand how more juice is being used on the High-speed setting. It has always been my understanding that the same amount of energy is going through the switch on Low, as does on High, it is just that part of the available energy is shunted off through the resistor to limit the amount that the fan motor sees when running at t
Forum: Corvair Center Forum
6 months ago
Bob Helt
Larry, Since you have been fighting this problem for over a year now, My suggestion is to "throw in the towell" and get some serious help. So I suggest that you locate a shop that has a chassis dyno and have them run a diagnostic test on your Corvair. Most chassis dynos are completely instrumented to detect and locate problems such as yours. My guess is that the dyno people could do all of th
Forum: Corvair Center Forum
6 months ago
Bob Helt
Please note that the stock Corvair Coil has a primary resistance of 1.35 ohms. This is often referred to as 1.5 ohms. It is mandatory that your replacement coil have the same primary resistance since the ballast resistor is in the wiring harness. Also,common, and often incorrectly used with the stock Corvair wiring, is a coil with a 3.0 ohm primary resistance. this coil is not correct for sto
Forum: Corvair Center Forum
7 months ago
Bob Helt
I'd guess that there are two possibilities. 1) one or more broken rings.Could have been caused during rebuilding engine or even from detonation 2) possibly cylinder warp Some 60 over bores weaken the cyl enough to warp. Must replace to fix. Looks like you will have to pull the head on that side and find out' Bob Helt
Forum: Corvair Center Forum
7 months ago
Bob Helt
Hey Dan, While most of what you just posted is true to some extent (e.g., 5w-30 oil returning to 5w in use, isn't correct. Why would there be a thickening spec then?.) What you show are just "On paper" IMPROVEMENTS, not significant advantages. For some significant advantages, how about gas mileage improvements using synth? Very likely to be negligable. Show me the data on mileage improvement
Forum: Corvair Center Forum
7 months ago
Bob Helt
a simple way to tell time Here is the straight story on selecting an oil for your Corvair. If you believe that our Corvairs with the sliding valve lifters need more wear protection than the recent late model vehicles with their roller lifters do. And if you believe that the phophorus added by ZDDP provides this wear protection, then you do not want to use any new car oils rated in the
Forum: Corvair Center Forum
7 months ago
Bob Helt
Ken, Many thanks for sharing this procedure with us. But there is one item I would like to suggest. Use longer bolts! You specified 1/2" but there aren't many threads left after a washer, oil pan and gasket take up most of that bolt length. In addition, the bolt holes in the case are much longer. So may I suggest 3/4" long bolts for the blind holes and 7/8" long bolts for the open holes. Rega
Forum: Corvair Center Forum
7 months ago
Bob Helt
There is a casting number on the outside of the bell housings. The table below shows the application for these numbers. Identification Numbers Cast in the Bell Housing Manual Transmission Powerglide 1960-63 6256583 6255599 1964-69 3832176 3832517 Note that you can distinguish an early model flywheel housing from a late model one by the fact that
Forum: Corvair Center Forum
7 months ago
Bob Helt
Thanks for the run-down, Al. It sounds like a lot of thinking and planning have gone into this change. If I have counted right, it looks like we now have 5 people handling CORSA's affairs replacing two. I just hope that we can afford it.. Bob Helt
Forum: Corvair Center Forum
7 months ago
Bob Helt
Hi Steve, and fellow team members. That's a great intro to the "new" Communique. Thanks for the Preview. I was wondering whether you could maybe expound a bit on your plans for the Communique. Are there be any page number length or formatting changes planned? What will be your intended mix of topics? Do you have plans on how you might solicit member written articles? What is your intention o
Forum: Corvair Center Forum
7 months ago
Bob Helt
SteveInMarietta Wrote: ------------------------------------------------------- > Is a complete digitized set of the Technical > Service Bulletins available anywhere? > Steve Steve, I don't think that as for TSBs, there is even a complete list of them, much less a digitized list. It would be interesting to have a list of the Corvair TSBs. Anybody??? Bob Helt
Forum: Corvair Center Forum
8 months ago
Bob Helt
SteveInMarietta Wrote: ------------------------------------------------------- > You may wish to look at the Corvanatics Manuals > and the Engineering and Pricing web pages also. > Steve Thanks Steve, but I have many times scoured those web pages to no avail. If you stop to think about it, the Corvanetics group wouldn't be interested in any data/documents after 1965 anyhow since t
Forum: Corvair Center Forum
8 months ago
Bob Helt
We have some of the EM Shop manuals digitized and available for download, Also the 1965 SM. But are there any of the 1966-69 shop manuals available in digitized form? Bob Helt
Forum: Corvair Center Forum
8 months ago
Bob Helt
THANK YOU KEN for a great reminder. You and Frank did all the work and ran these tests. I remember it put a huge load on your shoulders at a bad time but you both completed the testing and final report. It was an amazing milestone. 66vairman, Thank you for pointing out that it takes pressure to move air. That point is frequently missed (or ignored) whenever CFM is brought up. As you said,
Forum: Corvair Center Forum
8 months ago
Bob Helt
BOOKS NOW AVAILABLE --THE CLASSIC CORVAIR. A comprehensive technical description of the Corvair and its technical features. Contains maintenance and upgrade details. 350 pages. $40+$10 S&H. --CORVAIR SECRETS. Things you probably don’t know about the design and operation of the Corvair automobile. 300 pages. $35+$10 S&H. --HOW TO IDENTIFY AND REBUILD CORVAIR ROCHESTER H and HV CAR
Forum: Corvair Center Forum
8 months ago
Bob Helt
Allen Amrine December 2 at 9:33am Hi everyone the first run of 25 (Corvair) calendars are in! I will probably do 25 more at least depending on the demand. $25 each shipped in the USA. I will do international orders for $30 shipped. Please Paypal corvairownersgroup@aol.com or mail payment to Allen Amrine 207 Karr Rd. Colorado Springs, CO. 80916 I will send them out asap
Forum: Corvair Center Forum
8 months ago
Bob Helt
bobg1951chevy Wrote: ------------------------------------------------------- > I cannot imagine GM wrote that paragraph into the > owners manual, without good reason. > > To each his own, I would say. Bob, You well be a believer that the Engineers didn't really know what drive and maintenance requirements to set for the Corvair after you read my article in the June 17 Com
Forum: Corvair Center Forum
Current Page: 1 of 47

This forum powered by Phorum.