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Date: Wed, 26 Mar 2003 21:30:53 -0500
From: KeithG <noonenopsamspring.com>
Subject: Re: Silicon vac hose question


I think that 4mm would pop off fairly easily under boost if you do not retain it with zip ties $0.02. The AIC has pre-formed hoses AFAIK. I did replace one hose on a NA '89 900 and just got 5/8 or 3/4 (I cannot remember...) KeithG Paul Halliday wrote: > in article 3E81BE91.5010008nopsamspring.com, KeithG at noonenopsamspring.com > wrote on 26/03/2003 14:52: > > >>>Paul Halliday wrote: >>>What internal diameter should I use for silicon vac hosing? >>> >>>I have a choice of 3mm ID/2mm wall, or 4mm ID/2mm wall. >>>http://www.redlinemotorsport.co.uk/ sell it in 5m lengths for around 10 UKP >>>for anyone who's interested. >> > >>It is 3.5mm hose for most of everything. I got mine from Cali (hose >>Techniques), so it should be available. You'll need 6mm stuff for teh >>APC soplenoid. May also want to get new intake manifold bushings from >>teh dealer as well if they are either very soft or very hard. > > > Thanks for that Keith. I measure the APC hose at 7mm, but the ends are a > little "Wizard's Sleeve". 'll do that hose if I can persuade my source to > sell me less than 5 metres! It's good to know the right bores though, but I > think 4mm will be okay for most of it. > > What about the other air hoses, such as for the auxiliary air valve? I > measured at about 12mm, so probably 10mm. Does that sound right? > > As for the bushings, I've got a bag from one of my local garages. Orca's > going to be as tight as a Scotsman's arse^H^H^H^H wallet soon :) > > Cheers, > > Paul >

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