Hydraulic cam & lifters for type 1 engine

OLD VW NUT

OK - so I've searched the forums and can't seem to find a diffinitive answer for hydraulic cams and lifter for the type 1 engine. I have a 1600 DP AE case that I'd like to install hydraulics in to stick in my newly acquired 71 Ghia. I know this is the SB and late Bug thread but the Ghia forum is dead and the engines are the same.

I built a 1500 H case based engine in 1975 with hydraulic cam/lifters and had no problems and I drove it many miles. Those were slip in parts and no machining was done. I had to shorten the pushrods but the main cause of that was a deep fly-cut (.120") of the DP heads that reduced the overall width of the engine. With a set of Kadrons that 64 really got up and went. Compression was probably around 10:1 and NO PING! Good gas was still available back then.

So what is the deal with hydraulics these days? Do I need to have the case modified or are there parts available that slip right in to an unmodified case?

And please - before anyone starts telling me how easy it is to adjust valves every 3-5k - I'm 63 years old - I have a bad back - neck and shoulder problems - and have trouble getting hands to work above me while laying on my back. Not to mention the problems of getting back up to spin the motor for the other head.

I want hydraulic lifters. Period!
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Other car - 2013 VW Golf TDI

vw_hank · Posted: Mon Mar 14, 2011 12:35 am Post subject:

sorry I don't know if thy are bolt on or not. I know thy are available, the only bad thing I have ever heard about them is that there not as responsive as solid lifters, but it don't sound like your going to be drag racing Wink

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fmartin_gila · Posted: Mon Mar 14, 2011 8:21 am Post subject:

Hey OldVWNut,

I recently picked up a 74 VW Thing to add to my stable(67 Single Cab & 69 Bug). I am in the process of finding out "What I bought & what it needs". When I was going to adjust the valves, I discovered it had a solid rocker shaft conversion and hydraulic lifters. Don't know what else at this point. With quite a bit of searching over on the Shoptalkforums.com site, I found some info about the Hydraulics. At least it is a place to start, and as I can remember, there were some threads, articles, and links to info.

On your other issue - don't give up quite yet. I'm 72 and do all my own work on my VW stuff plus helping others with theirs. Keep moving, it's the best thing you can do for yourself.

Fred

torsionbar

OLD VW NUT · Posted: Mon Mar 14, 2011 10:03 am Post subject:

ashman40 · Posted: Mon Mar 14, 2011 10:51 am Post subject:

I can't speak for how hard these will be to install. You might give a call to the retailer for advice:
http://www.cbperformance.com/catalog.asp?ProductID=58

Also, Antonio Trejo has posted a bit of info on Mexican Beetles that came w/ hydraulic lifters. I can't seem to find details that say that will work with stock dual-relief cases? Maybe Antonio knows? He might even sell the hydraulic lifters too!
http://www.thesamba.com/vw/classifieds/detail.php?id=84077
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Pink MG · Posted: Mon Mar 14, 2011 11:23 am Post subject:

Roy Henning (MOFOCO) may be able to expound on the use of hydraulic lifters. I believe the MOFOCO 1776 Streetwise motor uses them.

I'm "older" too...and agree with you. If I ever build another motor when I retire, I will be sure it's got hydraulic lifters...they are much less hassle and much quieter than solids.

[email protected] · Posted: Mon Mar 14, 2011 2:29 pm Post subject:

Our drop in hydraulic kit is the only one of it's kind. We manufacture the hydraulic lifters in house and have specially made hydraulic cams and push rods made as well. The only catch is that the lifter bores MUST be within factory spec or the lifters will bleed down quickly. This is why we only build hydraulic engines on brand new cases. I have successfully built them on reman cases in the past, I don't want to discourage you, but you must make sure the lifter bores are still good. The second catch is that we recommend having a spin on filter either with a filter pump or full flow.

OLD VW NUT · Posted: Mon Mar 14, 2011 4:34 pm Post subject:

flyboat · Posted: Mon Mar 14, 2011 4:45 pm Post subject:

I know there are many hydraulic engines out there but I get conflicting reports about advantages and reliability. For what its worth, Bernie Bergman says he has built a gazillion hydraulic motors and they all get a gazillion miles on them with no problem. Maybe he is using MOFOCO's kit. Do your homework well.
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torsionbar · Posted: Mon Mar 14, 2011 4:46 pm Post subject:

OLD VW NUT · Posted: Mon Mar 14, 2011 5:05 pm Post subject:

vw_hank · Posted: Mon Mar 14, 2011 6:11 pm Post subject:

[email protected] · Posted: Tue Mar 15, 2011 7:28 am Post subject:

Gary · Posted: Tue Mar 15, 2011 10:20 am Post subject:

OLD VW NUT · Posted: Tue Mar 15, 2011 10:49 am Post subject:

airkooler66 · Samba Member Joined: February 15, 2011 Posts: 59

Hey guys...I picked up an 1835 the other day that I bought out of a customers car. I split the case and found it has a Weber 535H in it with Chevy lifters. The engine ran on 2 cylinders because it couldn't pump up all the lifters. Is this a common problem? Lifter bores are within spec...the bearings were a bit worn and it had a ton of end play because someone left out the thick shim that goes between the timing gear and the brass distributor gear...I wonder if it had too much working against it? I've talked to Rimco and the parts guy at Gene Berg and they say they've had this problem as well.

I wonder if the pressure booster kit would help in conjunction with the HV pump it has...

Also the lifter bores look thin after machining...I wonder if that's something I should be concerned about?

Thanks in advance, Ron Ellis III
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1966 Baja Bug
1966 13 window DeLuxe
Dolphin Dune Buggy

morymob · Posted: Tue Jun 23, 2015 4:22 am Post subject:

Later mexico bugs used hyd, are these parts available? ? Anyone check lifter bore size on these engines? ?

airkooler66 · Samba Member Joined: February 15, 2011 Posts: 59

Yeah they did...I wonder what they had for oil pressure? Obviously it would need to be more than your typical stock solid lifter engine has...
_________________
1952 Zwitter
1966 Baja Bug
1966 13 window DeLuxe
Dolphin Dune Buggy

Antonio Trejo · Posted: Tue Jun 23, 2015 4:06 pm Post subject:

Image may have been reduced in size. Click image to view fullscreen.

This is the genuine VW hydraulic lifter on the late EFI VW Beetle (1993-2004). The #%$!!* battery on my digital caliper is out.
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