Lash-Caps on SI Stainless Valves?

Vanapplebomb

I'm getting a set of single piece stainless valves from SI. I know some people have had issues with stainless valves wearing at the valves tips with traditional adjustors. My adjustors are the larger 10mm screws. Do you think the valve tips will hold up or are lash caps really needed regardless of the size of the adjusting screw?
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1800 Type 4 Berrien 295

http://www.thesamba.com/vw/forum/viewtopic.php?t=487021

modok · Posted: Fri Oct 24, 2014 11:07 pm Post subject:

Lash caps are required when you use a SS valve that does NOT have a hard tip.

If the tip is magnetic then it is a hard tip. The valve and stem will be none, or weakly magnetic, but tip will be strongly magnetic.

mark tucker · Posted: Sat Oct 25, 2014 2:40 pm Post subject:

I use lash caps on everything.there cheep,they protect.there hard so the rocker can slide if needed.

Vanapplebomb · Posted: Sat Oct 25, 2014 9:06 pm Post subject:

Thanks for the input guys!
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1800 Type 4 Berrien 295

http://www.thesamba.com/vw/forum/viewtopic.php?t=487021

bugguy076 · Posted: Mon Oct 27, 2014 5:09 pm Post subject:

I would use them. won't hurt a thing.
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mark tucker · Posted: Mon Oct 27, 2014 8:35 pm Post subject:

manley says dont use them with hard tiped valves.I have always used them with everything execpt for my yamaha yz 250 dirt bike,I cant figure where they go Shocked

( hard on hard usualy dosent work so well,but Ive never had any issue,but caps hardened too much for the steel used may have an issue.)

Vanapplebomb · Posted: Tue Oct 28, 2014 4:12 pm Post subject:

Sweet guys. Looks like SI makes stainless valves with hardened tips. I'll be sure to get those. Thank you!
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1800 Type 4 Berrien 295

http://www.thesamba.com/vw/forum/viewtopic.php?t=487021

bugguy1967 · Posted: Tue Oct 28, 2014 9:07 pm Post subject:

CB's regular stainless valves and Snakeskin valves have hardened magnetic stellite tips. I just went outside and checked the magnetism. They're strongly magnetic at the tip, and nonmagnetic everywhere else. CB's can be ordered from 35.5 to 46mm in standard length. Also, at $9 each, they're probably cheaper than whatever you're going to order from SI.

Brent · Posted: Wed Oct 29, 2014 1:44 am Post subject:

I just received a package from Si today. First thing I checked was for magnetic tips. Confirmed they are magnetic. The color is a little different too.

For the above comment, they are 44x36 Type 4 valves and were $12 each direct from Si. Pretty good IMO.
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Vanapplebomb · Posted: Wed Oct 29, 2014 3:38 am Post subject:

Yup, not bad at all. My engine machinist is doing a valve job for me. He likes SI valves. I asked him yesterday about the valve tip issue and he said that all of SI's valves for air cooled VW's have hardened tips to so they hold up to the solid adjustors.

I'm only getting new exhaust valves because my intakes are just fine. my engine machinist measured them and they are worn half a thousandth on the stems which is well within the wear limits. He said he would regrind the intakes and reuse them. He also skims over new valves on the grinder to make sure they are nice and true before installing. Just the basic valve job. New guides, cut the seats, redo the valves, check spring pressure and instal hight, and do a leak down test.
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1800 Type 4 Berrien 295

http://www.thesamba.com/vw/forum/viewtopic.php?t=487021

[email protected] · Posted: Wed Oct 29, 2014 7:42 am Post subject:

I buy stainless steel valves from SI and two other suppliers. All have hardened tips.
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raygreenwood · Posted: Wed Oct 29, 2014 10:22 pm Post subject:

I have a set of Intervalve (made in Switzerland) with stellite tips Im about to try out. Decent recomendations on them. Well see. Type 4, 42 x 36.....abiut $12 a valve as well.

Ill post how they go. Should be about equal to Si from the feedback. Ray

Vanapplebomb · Posted: Sun Nov 02, 2014 2:38 am Post subject:

Roy, which valves do you order from them?

I have heard good things about Intervalve, but I really don't know that much about them. I am curious as to what you will have to say after giving them a go, Ray.
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1800 Type 4 Berrien 295

http://www.thesamba.com/vw/forum/viewtopic.php?t=487021

raygreenwood · Posted: Sun Nov 02, 2014 12:57 pm Post subject:


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