36hp Valve springs

[bialzi]

Hi does anyone have any info on dual, beehive or any other valve springs that will fit 36hp WW okrasa heads as the standard valves are close to bind with the standard springs using 1.25 to 1 speedwell rockers. Thanks in advance Neil

[gimmesomeshelter]

Perhaps splitpile will fill us in.

http://kustomcoachwerks.com/forums/viewtopic.php?t=6386

[earthquake]

I was playing with using Honda Goldwing springs and valves in a 36 hp head, here the thread...

https://www.thesamba.com/vw/forum/viewtopic.php?t=437391&highlight=goldwing

Casey
_________________
74 CLASS 11 LOOK-A-LIKE
69 DUNE BUGGY
79 INTERNATIONAL SCOUT II
05 SCION XB SERIES RELEASE 2[#437]
95 Chevy C3500 dually
98 Ford E150
Link to Kelly J. Nolte 3/20/53 - 11/6/08
https://time-zonelabs.blogspot.com/p/about-kelly.html
DEATH TO CHINGERS!
[From a military recruitment poster in the novel "The Stainless Steel Rat" By Harry Harrison]

[Frederik]

Any update on this subject? 1.25 speedwell rockers, ww okrasa heads and stock cam. Does the ww okrasa springs work or is there a better option? Catcam PAC-S90019 single spring, Jaguar dual springs or other springs?

Data for jaguar springs c7136/c7137
Free Length 1.96 in.
Outside Dia. 1.15in
Inside Dia. .64 in
Pressure @ full lift 165 lbs.
Seat Pressue 86 lbs

[FritzCP]

whats the Solid height (coil Bind).

the catcams are about 21.2mm, and the stock 36hp head has an installed spring height of 28mm. therefore the stiffer springs only have 6mm (.250") lift or so until bind, and the cams lift is about .320" without ratio rockers
_________________
Fritz Custom Products
Fritz 10 - Tin Screw Torquer
Fritz 124 - Crank Pulley Puller
Fritz 70 - 6306 Bearing Puller
Fritz 44 - Dizzy Puller

[[email protected]]

I don't know why folks don't try the 25hp oem dual springs 🤔🙄
https://www.thesamba.com/vw/classifieds/detail.php?id=1608928

[Frederik]

[[email protected]]

They should 25hp has the same valve specs" valve stem /guide" as a 36hp and if they don't the 36hp retainer just buy the 25hp retainer but I think the 25hp retainer is also the same ....but not sure if those dual oem springs used a different one but if it does just buy and look for those 25hp retainers for those dual springs shouldn't be hard maybe the vendor of those springs can supply you with the retainers also ....
.

[gimmesomeshelter]

Has anyone tried milling Okrasa heads to accept taller springs. It looks like there's some room.

Cheers,

Paul
_________________
"I would rather have questions that can't be answered than answers that can't be questioned."

Richard Feynman

[Frederik]

I find mixed answers about the install height. Did a rough meassure and get about 32mm from the underside of retainer to head surface, this did not include all the way down to spring seat area so total install height is probably aprox. 33-34mm. This confirms what I've read somewere that it is 34mm. Total lift (theoretic) with 1.25 rockers should be .4 inch (10.16mm) if I understand it correct and compression height of the spring at full lift would be aprox 23-24mm. If coil bind with catcam spring is 21.2 shouldn't it be safe?

I'm a total noob om this, so trying to learn as mutch as I can.

Ordered both the catcam springs and the dual 25hp springs. My biggest consern with the catcam is that stey have to mutch spring force/ wear out cam/lifters?

[Frederik]

Got the catcams and 25hp springs. Just by eyeballing it they all, the 25hp should have the smallest solid height. There is a big differens in spring pressure, the 25hp I can almost compress by hand force, the catcams No chance. Would think that the 25hp duals might work the best for my application.

Got the anwer with this picture from the seller if 36hp valve retainers worked with the dual 25hp springs that they fit as long as they have a flat inner mating surface. Not sure how the WW retainers looks like?

[[email protected]]

Keep us inform on the process 👍👍 ...

[Frederik]

Did a very rough meassurement (using an old mechanic scale). So this should by no means be taken as exact figures, but just as a rough comparison. Also full lift and istall hight is still "theoretical".

Dual 25hp springs
Free length: 41,5mm
Pressure at install height (33mm): 18-20kg
Pressure at 28mm (vw test value for 36hp, should read 33.7+/-1.70kg): 28-30kg
Pressure at full lift (23mm): 38-40kg

Catcams (for comparison on the scale)
Free lenght: 45mm
Pressure at install height (33mm): 40kg
Pressure at 28mm: 55kg
Pressure at full lift (23mm): 75kg

I will probably not use the catcams to begin with, but I will try the 25hp dual springs. There is about 5kg difference with and without the inner springs so might also try just the inners with the WW and stock springs.