Well I’m just about to convert my 1989 XJ40 to a vacuum brake system
and happily get rid of all the ‘‘very strange’’ hydraulic system
components. I have two questions:
Can anyone who has actually done this comment on the brake pedal
pressure required after the modification? Does it take about the
same amount of foot pressure? More? Less? I’m using a vacuum
booster from an 87 XJ6.
How do I clean out the metal filings that will result from
drilling and taping the intake manifold. I’m afraid that just
sticking a small shop vac hose into the hole won’t get the job
done and I don’t want to pull any intake manifold components if
I can possibly help it.
Thanks in advance to everyone who always seems to comes through with
good advice.–
Groove
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In reply to a message from Grooveman sent Mon 5 Oct 2009:
Dennis reply to my email address and I will send you all the info
you need. John–
John. Walsh. Purrrrr 89 vdp
bowmanville ontario, Canada
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In reply to a message from Grooveman sent Mon 5 Oct 2009:
THe Vacuum Boost was already installed when I purchased my '89 a
few years ago. I did have to replce it about two years ago with a
new one from the local Auto Store for about $65.00 US. A common
General Motor part and easy to install. I can’t speak to the
conversion process and drilling to get a vacuum line off the intake
manifold. However I can tell you that it takes normal foot pressure
to activate the power boost system just like most cars.The brakes
respond very well.–
The original message included these comments:
Can anyone who has actually done this comment on the brake pedal
pressure required after the modification? Does it take about the
same amount of foot pressure? More? Less? I’m using a vacuum
booster from an 87 XJ6.
Visit the Jag Lovers homepage at http://www.jag-lovers.org for exciting services and resources including Photo Albums, Event Diary / Calendar, On Line Books and more !
Hi Groove.One way to keep swarf out of the inlet is to coat the drill and
tap with grease and keep the speed of the drill slow, clean it off regularly
and recoat every time.
Regards
Robin, Auckland NZ
'92 4.0 l Sov----- Original Message -----
From: “Grooveman” dennisfitzmoe@tx.rr.com
To: xj40@jag-lovers.org
Sent: Tuesday, October 06, 2009 9:46 AM
Subject: [xj40] vacuum brake booster
Well I’m just about to convert my 1989 XJ40 to a vacuum brake system
and happily get rid of all the ‘‘very strange’’ hydraulic system
components. I have two questions:
Can anyone who has actually done this comment on the brake pedal
pressure required after the modification? Does it take about the
same amount of foot pressure? More? Less? I’m using a vacuum
booster from an 87 XJ6.
How do I clean out the metal filings that will result from
drilling and taping the intake manifold. I’m afraid that just
sticking a small shop vac hose into the hole won’t get the job
done and I don’t want to pull any intake manifold components if
I can possibly help it.
Thanks in advance to everyone who always seems to comes through with
good advice.
Visit the Jag Lovers homepage at http://www.jag-lovers.org for exciting
services and resources including Photo Albums, Event Diary / Calendar, On
Line Books and more !
Visit the Jag Lovers homepage at http://www.jag-lovers.org for exciting services and resources including Photo Albums, Event Diary / Calendar, On Line Books and more !