Technical PVC on Flathead

Ok guys I know there are plenty of threads dealing with putting a PVC valve on my flathead. I have read them over, and still a little confused on the application.
So here it goes
1) is there a specific PVC valve needed, if so what is it?
2) is the placement of the valve at the block off plate where the original fuel pump good?
3) is the full vacuum port in the center of the intake a good place to pull vacume?
4) is it ok to tee vacuum with my power brakes, I'm running 3/8 size hose.

Thanks Curt

 

P. C. V.

 

I've got a PVC valve that shuts the water to my toilet off.

 

Curt, I installed my PCV valve, where the old draft tube was attached, on the front of my '49 8BA engine. (I assume your engine is '48, or older) I machined a bushing to fit the hole in the intake, with a female hole for the valve.

I am drawing full manifold vacuum, from the intake.

Somone on this site, or The Ford Barn, posted a number for a PVC valve, but when I tried it, my engine drew too much vacuum and would not idle.

I ended up finding one that worked for my application, but didn't record it's part number, sorry. I tried three different valves before I found one that would allow my engine to idle. (I have two Holley 94s) If you have a different carburetor set up, you may need a different PCV part number, anyway.

By the way, your engine's a beauty!

 

I placed my PCV in the draft tube hole. I got the kit from ebay for $40.

 

Shit guys I think I'm dislexic....lol....sorry about that....PCV valve...that's way too funny

 

Please look at pics, im not using a draft tube......it's seems that's there is a certain PCV valve required...that's what I really want to know

 

What are the engine and intake, pre-49 or 8BA? An engine picture would help.

 

I am interested in the number pcv


Sent from my iPhone using The H.A.M.B. mobile app

 

I posted two pics. The intake is a Edmonds 2 two barrel carbs, running two 97,s.
The ball in the PCV rattling on idle.

 

If you have the part # needed just send one for each

 

The reason I asked for engine/intake ID and picture is to know a correct placement/installation for the pcv.
You did ask 4 questions....
1) Several pcv valves can be used, depending on engine size, cam, etc.
2) No.
3) Depends on intake design; single plane yes, dual plane normally not.
4) No. Keep the brake vacuum line separate.

 

Ok....#1 ...is 239 with mild cam....don't have cam card
#2 ...why is that a bad location? Where would be better
#3 single plane dual 97s as stated before
#4 what is the reason for separate vacume location?
Thanks ...I have tried the PCV valves already part #fv294
#fv196 and fv184....all of them rattle and don't seem to close leaving a vacuum leak
Thanks again ....I'm learning as I go...lol

 

The pictures finally show what I needed-late 8BA with an 8BA intake.
2) On an 8BA, fresh air should enter from the stock forward breather/oil fill, or at the rear through the fuel pump mount, normally using an earlier '35-'48 breather/pump mount. The pcv should be placed in the road draft tube location forward of the stock oil fill. This will ventilate the engine as Ford designed it to.
3)I don't remember the Edmonds being a single plane, but if true, the vacuum line is OK. If two plane, you want to drill through a plenum divider, or tee plumb, to ensure all 8 cylinders pull on the pcv.
4) The brake booster can create vacuum fluctuations that may affect the pcv operation, and visa versa. Keep them separate.
Below is an 8BA ventilation flow diagram.

 

Thanks Bob, the dose put me in the right direction....I do still need to know what PCV valve I need....
Thanks again for clearing that up

 

I had read somewhere that the PCV valve is the same one used for GM 3800 v6 motors. Its the one I have but don't recall the part numbers sorry. A quick search on google pulled up this Part #CV774C.

 

Am using a P C V valve for a 283 Chev in my 8BA

 

I have a 1950 Ford 8BA and I have my pcv valve set up exactly like V8 Bob's illustration posting. My engine has an Offenhauser 4 barrel intake.

I installed a rubber pcv grommet in the down draft tube hole on the intake manifold. I got it at an auto parts store off of the "HELP" parts brand name rack and the grommet part # is 42054. It fit the manifold hole perfectly.

As far as the pcv valve itself I used Purolater brand pcv valve part # PV1009 and it fit perfectly in the rubber grommet center hole. I have the pcv hose plugged into the carb port that pulls full intake vacuum.

I've been running this for four years and it works perfectly.

I believe the pcv valve is meant for a Jeep, but do not quote me on that. A search of the Purolator application charts will reveal it's true application, but who gives a shit as long as it works.

 

If you are using the Ford loadamatic distributer ,you will have problems on any modafied 49 _53 engine . They work diferent to normal .To battle the overheating ,hard starting and other related issues , I went to licktronic , problem solved .