siscogts

after the last old tread is closed ...about removing cold air stuff, decided to do a little research.

I found an insulation material really similar to that on GTS intake hoses.

found the material here:

http://www.extremeaudio.de/it/sinusl...-selbstkl.html

for 34,88 euro I got 2 sheets, good to make 2 hoses.

I started from this conditions:



here 's the new material vs old one::


first I removed by hand the terminal silicon parts:




Opened the foam where it was originall glued 22 years ago.

cut the foam about 66cm by 28-28,5cm , more or less the sizes of old foam:


removed the protective paper on the adhesive side and put on the iron spiral:


I rolled the foam around the spiral , at 1cm from the complete turn, I use som pattex/bostik glue, i put some on the edges, wait 10minutes to let dry some solvents and then I make edgeds to bond each other , and put a paper tape to prevent any movement "backwards".I work on 5 cms per time .
SO now I can put the terminal silicone plug on each end and let dry for 2-3 hpurs.


After I removed the paper tape and filled the juction with other glue, this time I used neoprenic glue, but vinylic is the same for this purpose.
I put again some paper tape on some points i thought they were not so close...
after 2-3 hours it is done.


Pictures again:


only one thing is missing: holes fpr Timing belt cover.but the most part is done and I hope this will last 15 yers or so.
Francesco

TheoJ

That looks great !!! My compliments !!!
regards
Theo
1992 928GTS

siscogts

Thank you!

linderpat

wow, finally a stock looking fix for those poorly made tubes. Well done.

siscogts

Yep, poorly made....and i had to pursue the same poor method to obtain the stock look. Thank you for compliments.. Tonight I will take a picture of the engine bay with new hoses.

Dean_Fuller

Looks GREAT !

Imo000

Looks good, well done!

siscogts

thank you!

siscogts

took a picture , tubes are not 100% in right position, but they are 1 millionm times better than old ones.




Now I come back in the garage to search for the perfect position.

Francesco

Alan

You did a very good job replicating the original look & construction - kudos!

Unfortunately I think even factory new GTS hoses look like crap. Its an authentic look alright - but I think they should never have made them (look) this way.

I do think the broken matting over your coils needed some attention first? - however it's likely the whole lot is quite brittle at this point - all mine was ready to fall apart.

Alan

worf928

I'll add my compliments: that looks really good.

I would suggest an experiment for the next person who does this: rather than reuse the old spiral inner guts of the intake tube get a couple of feet of CEET Tubing of the proper diameter as a replacement.

SeanR

Fantastic job making them look like the factory ones. Well done.

andy-gts

wow that looks really great KUDOS !!!!!!!!!

siscogts

Saw a German guy doing that. 100 times more practical to renew. But I prefer to stay original 100 percent. If my renewal experiment will show weak points (apart from being poor like the original project) I will use ceet tubing method.

worf928

Maybe you missed my point?

I was suggesting to use the new outer material you found wrapped around CEEET tubing rather than reusing the old webbed spiral guts of the original. You would still end up with a stock look.