On my Bug. Simple Dog house, no external cooler. I mounted a low profile fan over the shroud blowing fresh unheated air down to the engine fan intake. Works good, temp is down.
The previous owner of my bug moddified the fan housing by removing the dog house and used cutter down pipe with hand made ducting too cool cyl 3. Driven a few times over 100miles no issues.
Great info Mike! The ever popular 009 distributor doesn't retard number 3 firing order, it was based on industrial engines at low rpm. If a new builder isn't upgrading to doghouse shroud, use a vacuum advance distributor. This extends engine life. I think I'll be ordering a shockwave, and hope it is durable, as I use German doghouse shrouds in my bug and bus.
I just tore apart a 1600 dual port with dog house fan and a thrown rod that came out of a 71 bus and had been sitting around as junk. Number 3 spark plug was smashed flat and removing head showed there was hole in number 3 piston and metal chunks .. that was caused from number 2 rod letting go and detonating front half of internals. Took the intake lobe out of the cam in a clean 3" chunk. So while early tear down looked like #3 was the cause, it was actually #1.
Hey Mike ! what I have on Rambus is a cooler like you say not to use . It came with instructions not to cover the intake hole more than 50% . What does those in is grim clogging them up . Matt down here nags me to upgrade to a dog house . If I had one I would use one . But when I picked Rambus up from Jr. he said it didn't have a gen. shroud . His father picked over what he could sell ? Rambus is a 71 and it should have had a dog house ?
yup. somebody probably took it out and put it in another car when it was in the shop they were sought after. Get yourself one you will not be disappointed. Doghouse had a bigger fan too....way better cooling.
For the life of me I cannot understand how these people installed the external oil cooler right on the cooling fan intake. That is NUTS! Absolutely no common sense!
You probably mean Type 3 under cylinder tin; back in the ‘80’s they reproduced it as an aftermarket part and called it “super cool tin”. The cylinder tin is what goes on top and Type 3 and Type 1 are totally different.
yea it has them. Type 3 cylinder tin. under the pushrods. I ran that thing all the way to big bear 6800ft in the mountains. Very steep uphill. Floored the whole way.
In the old days, banks always sent the paper checks that you wrote out to pay bills and whatever, they sent them back to your house, then they said hey , we will keep a copy of them for you, for a monthly fee, then they found it cost more money to mail all those checks, and they charged a fee to send them to your house.
