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4 weeks ago
REM654DPG
Sorry everyone but due to the forecasted NW hurricane headed our way for this weekend we have decided to cancell Corvair College once again. We'll call it a postponement and will schedule it for next year at the same place. Let's hope that 2022 will be much more favaorable for us. Regan Metcalf Portland, OR
Forum: Corvair Center Forum
4 weeks ago
REM654DPG
Sorry everyone but due to the forecasted NW hurricane headed our way for this weekend we have decided to cancell Corvair College once again. We'll call it a postponement and will schedule it for next year at the same place. Let's hope that 2022 will be much more favaorable for us.
Forum: Corvair Center Forum
7 weeks ago
REM654DPG
I would be kind of concerned that this "good machinist" does not know where to aquire deep seats from. He should know the common brands or vendors plus he needs to find seats that will accomodate the tooling he has. The golden question here though is - does he want 5/16 or 3/8 deep seats?
Forum: Corvair Center Forum
7 weeks ago
REM654DPG
Craig, I think this is a great post and am enjoying the updates too. I have the close cousin to your car but it was born in America. It's not as clean or origonal as yours but it does still have all origonal interior and it is a rust free car. You'll have to de-cifer the body tag for me as I'm not sure of the production date but do know it was first sold on May 12 1965 for what
Forum: Corvair Center Forum
2 months ago
REM654DPG
Darrin, here's an old post with the info you're looking for. The Crower stuff is cheaper and the quality is better in my opinion. Hope this helps
Forum: Corvair Center Forum
2 months ago
REM654DPG
CORSA OREGON PRESENTS 2021 CORVAIR COLLEGE AND SWAP MEET SATURDAY, SEPTEMBER 18TH 2021 9:00 AM TO 3:00 PM JUAREZ CANYON – OREGON CITY, OR • TRUNK SWAP MEET • SHOW AND SHINE • BBQ LUNCH • TECH SESSIONS WHERE: $10 per person entry fee to cover the cost of food and refreshments (Kahlua Pork main dish – donuts/coffee, water & soda) It’s also a potluck for sides and des
Forum: Corvair Center Forum
3 months ago
REM654DPG
You typically want a minimum 3/8 inch gap between the bottom of the pick-up tube and the oil pan but for a street application in a deep pan more is fine too.
Forum: Corvair Center Forum
3 months ago
REM654DPG
Is it possible that this is just an issue with the stock pushrods? I only ask because I have a set of pushrods here out of an engine with 15K on the same rockers but they are aftermarket and everything looks to be working just fine.
Forum: Corvair Center Forum
3 months ago
REM654DPG
Keep in mind when installing the new shafts that they are designed to go in only one way. They are designed with the slot for the butterfly valve to be offset and the flats on both ends of the shaft are different sizes. The short side of the offset goes toward the linkage end and it also has the narrower flats. The long offset and larger flat obviously goes toward the accelerator pump arm.
Forum: Corvair Center Forum
3 months ago
REM654DPG
The case bolts are actually 16 potential leak points on a Corvair. I have seen them seep and recommend that they always be sealed if you want the assurance. I use a light coat of ultra copper under the bolt head and nut and threads. It also helps to chamfer the case holes where the sealer will be.
Forum: Corvair Center Forum
3 months ago
REM654DPG
You can modify a #4 center drill to match the taper on the bolt if you have the ability to grind it. I had to do this to the last pump I purchased from Clarks as the hole was not drilled deep enough. Not Clarks fault as they just pass on what they buy but even a new pump needs to be taken apart and all surfaces machined flat and everything else checked too.
Forum: Corvair Center Forum
4 months ago
REM654DPG
I’ll admit that I prefer the spin or rotation method for adjusting hydraulic lifters. I’ve found it to be a much more precise and accurate way to determine the exact point at which you’ve gone from a few thousandths of clearance to zero lash. Once you get past the .010 or so lash point, if you’re focusing on the subtle light drag on the pushrod as you tighten the nut, you will feel it when you ge
Forum: Corvair Center Forum
4 months ago
REM654DPG
Going off of the fact that only the right bank exhaust were damaged kind of eliminates the deffective cam/lifter theory. It almost seems and looks like a mechanical issue such as binding or bottoming out but with all the pushrods still being straight it is quite a mystery. Could you possibly have adjusted the valves way too tight on that side? Probably not but just a thought. I would look clos
Forum: Corvair Center Forum
4 months ago
REM654DPG
Yah, the search engine is kind of finicky. I guess I knew the key word in the search “ Crower” which helped. Sounds like Ken should be able to set you up but be careful not to run too much pressure.
Forum: Corvair Center Forum
4 months ago
REM654DPG
Kinda reminds me of Ground hog Day. Lots of good information in the previous posts that should answer your questions.
Forum: Corvair Center Forum
5 months ago
REM654DPG
The big end spec. is 1.9247 - 1.9252 @ 26ft lbs torque.
Forum: Corvair Center Forum
5 months ago
REM654DPG
Matt, even though they list the two gaskets they are both the same thickness but are made from different material. I would just buy the C3937 gasket for both aluminum and steel as it's half the price and works just the same once it's all sealed up. I was quite disappointed when I ordered both and paid twice the amount for just another paper gasket. The Gasgasich will work but only on
Forum: Corvair Center Forum
5 months ago
REM654DPG
I am not a UPS fan and was delighted to hear that Clarks is switching to Fedex. I like Fedex because it's really easy to just have packages sent to the local facility and I can just pick them up on the way to work or afterwards. Kind of like having a P.O. box for free.
Forum: Corvair Center Forum
5 months ago
REM654DPG
Looks like you have a pretty good handle on this Gerg and if they were good and tight coming off it's reasonable to assume that the press fit is good. I use the amature term in jest as I've done my share of blue ends in the past with a few purple to top it off. You don't want to get distracted when you're cooking rods. Hopefully you can find a way to check the alignment
Forum: Corvair Center Forum
5 months ago
REM654DPG
I would let the machine shop that resizes the rods install the ARP bolts. The parting face needs to be cut first while the bolts are out. And be sure to specify that you don’t want any more than.0002 taper in the honed rods. If they say no worries then you’re good but if they don’t know what you mean then find another shop that does.
Forum: Corvair Center Forum
5 months ago
REM654DPG
Here's a picture of a fixture for holding the pistons and setting the pin offset just for reference. You can see the amount of offset needed to give the correct center of the rod. Everything needs to be ready to go with the installation pin in place because once you pull the rod out of the heater you have about three seconds to set it in place and push the pin through. If it sticks on you yo
Forum: Corvair Center Forum
5 months ago
REM654DPG
Gerg, yes the oil ring groove radius applies to the SP pistons just the same. They are the same piston just with shorter skirts - that sounds kind of wierd doesn't it... If you're going to make a fixture for setting the pin offset that's good but you still need to consider a few other things. The most important detail with a press fit rod is to check the press fit so that you ca
Forum: Corvair Center Forum
5 months ago
REM654DPG
The main reason pan gaskets leak is because the wrong gasket is used without the correct sealer. Any gasket that can deform, distort, squish or move is the wrong gasket to use on the oil pan. The correct gasket for this application is the thin paper one like the original GM ones were. You use the same gasket for aluminum and steel pans and you have to apply sealer to both sides of the gasket.
Forum: Corvair Center Forum
5 months ago
REM654DPG
Gerg, just a heads up that these L2206 pistons have an inherent weak area inside the oil ring groove. They tend to crack in the bottom corners where there is a sharp edge that intersects the bottom side of the groove at the top of the skirt. If you can get in there with some small jewelers files you can radius the corners and remove the stress riser corner. Don't know if it will prevent c
Forum: Corvair Center Forum
5 months ago
REM654DPG
Gerg, here's an old post on the subject. Also, the feeler gage method for checking piston/bore clearance does give you a ballpark number but is not very accurate. Best to use a micormeter and bore gage which will allow you to see taper and roundness of the cylinder.
Forum: Corvair Center Forum
5 months ago
REM654DPG
Ken is correct - those are L2206 TRWs or Sealed power forged. You can sand the skirts smooth with some 320 emery and they will clean up nicely. The clearance specs as stated are .0015 @ top and .001 @ bottom of skirt and are listed as minimums. They are also a total diameter clearance and not a radial per side as some think but I do agree that .003 to .0035 max for an N/A engine is a safe clearan
Forum: Corvair Center Forum
7 months ago
REM654DPG
The description of all the differential parts is interesting. I wonder if the "steel nose cone" listed could be the throw out bearing shaft.
Forum: Corvair Center Forum
7 months ago
REM654DPG
So many questions - I'll try my best to answere them but please don't assume I'm the expert here. For Robert C "I assume you are talking about the reproduced posi side gears as opposed to GM NOS posi side gears? - Clark's shows the reproduced posi side gear as available". Lee J. is correct – there are and never were any re-produced Posi side gears made tha
Forum: Corvair Center Forum
7 months ago
REM654DPG
Hopefully I can answer these questions for you Bob: "What is the current top selling price for a complete set of positraction parts to convert a LM Corvair differential that is not equipped with one. Good used plates friction plates included". The posi specific parts you'll need to add a posi are: 1. Posi side gear - lates have the machined face 2. Posi preload spacer 3
Forum: Corvair Center Forum
7 months ago
REM654DPG
With that pan you need to jack the front of the car up as much as you can to get all the oil drained out. The extra half a quart then really applies to a new empty engine so don't be too concerned. It's the cooling, sealing and rigid characteristics of this pan that make it such a great oil pan - for me at least.
Forum: Corvair Center Forum
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