[T3] Breather cap

[William J]

 I never had this issue ever until about a year ago . My 73 still has the 
pump that came on it when I bought it in 85 and didn't look like it was 
changed before I got it.

 Now it seems to be the pumps check valve because I need to prime it with at 
least 9 key cycles while the pump runs for the 1.5 minutes . It started out 
with 3 cycles then 5 so it's getting worse .  Once it's primed it will start 
right up whether if I drive it 1 mile or 10 miles I can start it 5 times a 
day and it sits for 3 hours it still fires right up let it sit over night 
and it's back to the priming deal.
----- Original Message ----- 
From: "Keith Park" <topnotch at nycap.rr.com>
To: <type3 at vwtype3.org>
Sent: Friday, August 25, 2017 6:20 PM
Subject: Re: [T3] Breather cap


> Ive always been perplexed why some cars lose prime and others dont,
> neither my old 73 or the 71 have ever had starting problems in that way, 
> im
> just running good ol Mahle hose, no plastic cover over the engine...
> yet some cars do need the primer feature..  whats different with them?
>
> Keith
>
>
> Topnotch Restorations
> topnotch at nycap.rr.com
> http://www.a383ina68.addr.com/radiorest/main.htm
> 71 Squareback  "Hothe"
> 65 Notchback  "El Baja Rojo"
> 93 RX7  "Redstur"
> 87 Golf  "Winterat" RIP
> 01 Sentra SE "Boremobile"
>
> -----Original Message-----
> From: type3-vwtype3.org 
> [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org]
> On Behalf Of Jim Adney
> Sent: Friday, August 25, 2017 8:44 AM
> To: type3 at vwtype3.org
> Subject: Re: [T3] Breather cap
>
> On 24 Aug 2017 at 22:56, Keith Park wrote:
>
>> Jim can probably tell you where to get one of these valves,
>> he gave me the one im using now, when my pump first got rebuilt
>> I found that the backflow valve leaked down too fast, the teflon hadnt
>> seated in, so I added the valve.  solved the cranking to start problem.
>
> I gave Keith a sample I had, that had the wrong nippe sizes. He had to 
> adapt
>
> it to our hose size. I've never managed to find a good source of check
> valves
> with 5/16" fittings, so I don't recommend that as a solution.
>
> Besides, the check valve is not always the problem, but the primer switch 
> is
>
> always a solution, and it's simple enough that anyone can install it. Plus
> it's
> cheap.
>
> -- 
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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