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 Thinker
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| posted on May 29th, 2009 at 06:26 PM |
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1970 bug deck lid
i have a 1970 bug should it have vents in the rear deck lid.
i have noticed that it has tin inside the lid to catch water but no vents WHAT THE !
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 helbus
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| posted on May 29th, 2009 at 09:23 PM |
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We had an original 1970 'Standard' Beetle and it had a 1300 and 4 wheel drums and no vents in the engine lid
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Joel
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| posted on May 29th, 2009 at 10:50 PM |
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70 was the first year they started putting vents in
they had 2 sets, but they werent enough for twinport doghouse engines so they went to 4 vents in end of 71
trouble is people swap the decklids due to rust or accident damage
if its still got the original single port engine it will be ok but if a later duel port engine's fitted then the bigger doghouse fan doesnt get
enough air
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68AutoBug
A.k.a.: Lee Noonan
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| posted on May 30th, 2009 at 12:19 AM |
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| Quote: | Originally
posted by Thinker
i have a 1970 bug should it have vents in the rear deck lid.
i have noticed that it has tin inside the lid to catch water but no vents WHAT THE !
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that tinware inside the engine lid is very hard to find these days... it was only used on 70 models I believe..
even 1500 beetle engines can overheat in very hot weather in the summer... so I would suggest replacing the non vented engine cover with a vented one
either 2 or 4 vents.... the 4 vented ones are easy to find...
but the inside tinware won't fit...lol
its not really needed....
My 1968 beetle with 1976 rear engine lid..
cheers
LEE
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- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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Thinker
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| posted on May 30th, 2009 at 08:39 AM |
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thanks guys
it is a 1500 and sound like at some stage the deck lid has been changed. i am try to keep this bug original so i will start looking for a vent lid.
thanks
Elton
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Joel
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| posted on May 30th, 2009 at 10:55 AM |
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thats abit earlier than 76 Lee
from late 74 they all had black plastic number plate light housings with ribs on top
mines 9/74 and had it but my 8/74 1300 didnt
76 had no script either, plus all 76 and some 75 have the thermostatic flap that opens up under the number plate light housing
thats what the sqaure indentation behind the number plate is for
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eraser
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| posted on May 30th, 2009 at 08:35 PM |
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Joel, wow never seen that before ... what does it look like on the outside?
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Joel
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| posted on May 30th, 2009 at 11:29 PM |
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DylanTheDubber
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| posted on June 9th, 2009 at 11:08 AM |
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If you had a ventless decklid on a bug that had a 1916 or bigger engine and had decklid stand-offs would it still over heat. I rather the look of no
vents and stand-offs.
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Paulc1964au
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| posted on August 15th, 2013 at 06:38 PM |
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looks like i will be sourcing a new decklid for my 69 are they a straight fit?
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 matberry
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| posted on August 15th, 2013 at 07:24 PM |
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Dylan, with the lid on stand offs, the fan will get enough air. It's essentially the fan, not single or dual port. If you don't want the vents or
stand-offs, run the narrow fan and no offset (dog-house) cooler, I am running this without any cooler in the fan housing, but am running a full flow
cooler and filter with thermostst and temp operated electric fan on the cooler. When your engine is set-up and tuned correctly no overheating will
occur. It's a worse situation to have a wide fan and no extra vents as the fan starves for air at highway speeds when most critical. With the aid of
ceramic thermal barriers when building the engine, this can be pushed even further, I see under 100*C on the highway with 10.2:1 CR and a power
pulley!
And Paul, straight swap for you.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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Paulc1964au
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| posted on August 15th, 2013 at 08:05 PM |
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Thanks Matt so that explains the higher temps I experienced on the freeway
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Joel
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| posted on August 15th, 2013 at 09:20 PM |
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Yep
You see it all the time when people put bigger motors with the wider doghouse fan in early bugs without decklid vents.
they are ok around town, it;s once you get out on the motorway and start getting the revs up around 3k the fan begins to starve for air and when you
add twin carbs it only gets worse as they fight the fan for air.
Lot of people space the number plate out and punch holes in behind that or check out what Daimo Pell did adding hoses under the car that scoop air
near the gearbox and come in through the firewall tinware aimed at the fan.
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rob53
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| posted on August 30th, 2013 at 10:14 PM |
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For what it's worth, I have the original 2 set vent deck lid on my 1970 beetle , with the the internal drip tray and am running a later stock 1600
twin port engine. In all the years I have had it, it only overheat once, when it was a 40 degree day in summer, stuck in traffic, in the M5 tunnel!
Thats not rust, it's ah ... orange primer ... yep that's what it is ...
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Joel
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| posted on August 31st, 2013 at 09:56 AM |
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Something else would have been to blame there.
When sitting just idleing is when a VW engine will run its coolest.
Low idle speed, bits of tinware or engine bay seal missing or heaterboxes not hooked up right are the usual culprits in those situations.
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