Silicon/rtv/permatex does it have a place in an engine?

RENNWAGEN Seriously Crusin Dubber

158 posts · joined Sep 2003 · 20 Dec 2012, 8:58 pm

#936452

I'm about to start putting my 2 litre back together and there seems to be a lot of disagreement on this subject. To some people it is evil and to others a necessary part of any engine rebuild. I'd like to hear everybody's thoughts and experience.

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 21 Dec 2012, 7:50 am

#936485

I use an RTV sealant on the barrel base, no where else. The main problem with the product is it spews into the inside of the join and little bits can get into the oil system.

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

vwo60 Veteran Volks Folk

2,036 posts · joined Feb 2007 · 21 Dec 2012, 10:31 am

#936508

High temp RTV for exhaust gaskets, i also use loctite 518 to join the case halves and loctite grey under the barrels.

RENNWAGEN Seriously Crusin Dubber

158 posts · joined Sep 2003 · 25 Dec 2012, 2:16 pm

#936923

What about around pushrod tubes and under the head stud washers. I have a couple of engines on my bench that both have silicon in these places, one very carefully and neatly the other not so. Is it a good idea to use silicon in these spot or should it be unnessecary.

vwo60 Veteran Volks Folk

2,036 posts · joined Feb 2007 · 25 Dec 2012, 4:57 pm

#936934

You do not need any silicon on the push rod tubes, i use the loctite grey under the four head stud flat washers and make sure that there is no excess, always clean it off so it is under the washer only.

psimitar Son of Jim - Creator of Good

2,506 posts · joined Jan 2009 · 25 Dec 2012, 5:38 pm

#936939

I use permatex on the case halves and pushrod seals. The seals is just a precaution as you can never tell how good the seals are gonna be these days.

madness is in the eye of the beholder 👍

vwo60 Veteran Volks Folk

2,036 posts · joined Feb 2007 · 26 Dec 2012, 10:23 am

#937010

Buy the german one's and put them on dry, if they are silicon the sealant will not stick to them anyway, remember they are under compression.

psimitar Son of Jim - Creator of Good

2,506 posts · joined Jan 2009 · 26 Dec 2012, 12:42 pm

#937018

vwo60 wrote:Buy the german one's and put them on dry, if they are silicon the sealant will not stick to them anyway, remember they are under compression.

The ones I got from Mick's sure weren't German hence using a bit of sealant to help 🙂

next time when I have more time to source parts I'll make sure they're German 🙂

madness is in the eye of the beholder 👍

vwo60 Veteran Volks Folk

2,036 posts · joined Feb 2007 · 26 Dec 2012, 3:29 pm

#937037

I buy complete german gasket sets from pierside parts for $14.00.

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 26 Dec 2012, 10:35 pm

#937092

psimitar wrote:The ones I got from Mick's sure weren't German hence using a bit of sealant to help 🙂

Wow, thats a surprise.....NOT

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

psimitar Son of Jim - Creator of Good

2,506 posts · joined Jan 2009 · 26 Dec 2012, 11:01 pm

#937095

vwo60 wrote:I buy complete german gasket sets from pierside parts for $14.00.

Sweet 🙂 That's going in the memory banks 🙂 Ta

madness is in the eye of the beholder 👍

psimitar Son of Jim - Creator of Good

2,506 posts · joined Jan 2009 · 26 Dec 2012, 11:04 pm

#937096

matberry wrote:
psimitar wrote:The ones I got from Mick's sure weren't German hence using a bit of sealant to help 🙂

Wow, thats a surprise.....NOT

Hmm, I'm noting a spot of sarcasm there 🙂

I've given up finding an Oz vendor for German quality gear at reasonable prices tho mainly the quality thing so make use of the euro exchange rate at present 🙂

madness is in the eye of the beholder 👍

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 27 Dec 2012, 8:05 am

#937110

I stock them, how many do you want?

There are also more than 1 German Elring kit available, the cheap $14 version from O/S won't have everything in it.

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

vwo60 Veteran Volks Folk

2,036 posts · joined Feb 2007 · 27 Dec 2012, 9:55 am

#937119

everything except the the rear main seal, the german one's are $4.50 extra.

psimitar Son of Jim - Creator of Good

2,506 posts · joined Jan 2009 · 28 Dec 2012, 12:21 am

#937229

matberry wrote:I stock them, how many do you want?

There are also more than 1 German Elring kit available, the cheap $14 version from O/S won't have everything in it.

Thanks Matt. I'm good at the mo but good to know these things for future reference. How many parts of german quality do you stock?

madness is in the eye of the beholder 👍

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 28 Dec 2012, 7:51 am

#937241

psimitar wrote:Thanks Matt. I'm good at the mo but good to know these things for future reference. How many parts of german quality do you stock?

I presently have around $20 000 worth of stock, too much to list but ranging from pretty well all air-cooled service parts to a big range of Weber jets to that hard to find type 4 rubber dipstick boot or Berg performance gear....... Obviously not everything German but best quality available.

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

psimitar Son of Jim - Creator of Good

2,506 posts · joined Jan 2009 · 28 Dec 2012, 4:28 pm

#937274

matberry wrote:
psimitar wrote:Thanks Matt. I'm good at the mo but good to know these things for future reference. How many parts of german quality do you stock?
I presently have around $20 000 worth of stock, too much to list but ranging from pretty well all air-cooled service parts to a big range of Weber jets to that hard to find type 4 rubber dipstick boot or Berg performance gear....... Obviously not everything German but best quality available.

Cool. I'll PM ya when I'm in need then 🙂

madness is in the eye of the beholder 👍

fish26 Fahrvergnugen

903 posts · joined Jul 2007 · 1 Jan 2013, 8:54 pm

#937717

my way........
hone the pushrod tube seal mating surface, good quality seals and on dry, I like the aluminium sprung tubes the likes of JayCee, Scat.......ones with the double o-ring
Permatex Aviation for a lot of machined surfaces

If you are going to use RTV please use sparingly

bitten by the bug..........several times