Type 4 DTM Conversion WITH HEAT!

[drkblusea]

Hey there my dub doods.
So i am currently in the process of tackling an upright conversion for my Type 4 2.0l engine that came from a 1978 bus. I am putting it into my 69 Westy. I chose to fork up the cash for the DTM from Jake Raby. I am wondering if you all know of any effective ways to maintain the function of the heater boxes with the upright conversion. I do not want to ditch the boxes for j tubes or whatever, cause I wanna heat my bus, but also enjoy the Type 4 power.
Please let me know of any modifications, tips, suggestions, good luck charms, etc. for me to be able to figure a way to keep my heater boxes in working order.
Cheers!

[skills@eurocarsplus]

your best bet would be contact the T4 store/jake and see what the deal is. if he made it without heat, there is a reason. I can assure you that if you try and add a way to make heat and it was not designed to, you will have issues
_________________

[aeromech]

I would consider using a type 4 heater fan. Don't cut holes in your new DTM shroud.
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
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Capable of leaping tall buildings in a single bound

[drkblusea]

Aeromech, I have definitely thought about installing one of those fans into the engine bay, I have even thought about using the method of installing it to where it is hooked up to the back of the cabin in the bus so that it recirculates the air that way instead of pulling the air from the engine compartment (seen it done by someone here on the forums). But I understand that the heat boxes need continuous air flow to operate properly, so would you suggest setting it up so that the fan is always on and blowing air into the boxes?

[aeromech]

I have no experience doing this so I can't be much help. Maybe use two fans.
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound

[SGKent]

install an auxiliary heater and don't use heater boxes.
_________________
"Most people don't know what they're doing, and a lot of them are really good at it." - George Carlin

[Wildthings]

The Type 4 heater booster fan is a wimp. If you want to go this route buy an RV fan. It will move several times more air than a Type 4 fan.

Gas heaters are nice. The one in my Thing will be giving warm air in 15 seconds or so and hot air within a minute and a half.

[Stuartzickefoose]

+1 on the gas heater...notchboy is a good source
_________________
Stuart Zickefoose

2011 Jetta Sportwagen TDi 6 speed manual

206-841-7324
[email protected]

[SGKent]

BTW - if you haven't already considered it - putting that 2.0 into that 1969 you might want to consider upgrading the rear IRS to a later one so you have forged steel hubs driving the rear wheels instead of cast drums.
_________________
"Most people don't know what they're doing, and a lot of them are really good at it." - George Carlin

[Clatter]

One thing about heater boxes is that they require a constant flow of air.
Without a fan-propelled flow of air you risk damage.

Sounds like a dynamite excuse to get a gas heater!

Heater boxes weigh a ton, and its weight at the rear; where it's already too heavy.
One of the best things to improve performance on a type 4 is a proper header..

Maybe consider that squirrel-cage setup on the alt pulley of the aircooled Vanagon?
_________________
Bus Motor Build

I have excellent news for the world...
There is no such thing as patina.
It does not exist!

[Jake Raby]

The quickest way to imbalance the work that makes the DTM efficient, is to start adding air ducts to it. Please do not do this, as every attempt I made resulted in a completely loss of the critical balance of cooling between all 4 cylinders.

You won't see a single one of my engines with a DTM that has heater boxes, and there's a reason for this that you'll learn the hard way.
_________________
Jake Raby
Raby Engine Development
www.rabyenginedevelopment.com
"I've never given anyone Hell, I just told them the truth and they thought it was Hell"

[drkblusea]

Thankyou all for your advice.
SGKent- Do you have any specific recommendations as to which later IRS system would be a good swap. This isnt a topic I have heard of before. Maybe there is a specific year that they switched to forged steel? Are there quality after market parts I can buy new?

[airschooled]

[SGKent]

[Wildthings]

VW upped the minimum torque on the axle nut for the Vanagon probably because the bus spec of 253ft*lbs had proven to be insufficient. The Vanagon nuts also have extra castellations in it so it may actually take less torque to align the cotter pin even though the minimum torque is much higher, in other words when using the Vanagon nut and Vanagon 360ft*lb torque spec the torque on the nut ends up being more precise.

I moved up to the Vanagon spec at least 20 years ago now and have experienced no problems whatsoever because I did so.

[pb24ss]

I put an Espar Airtronic air heater in my westy. That is the route I would take. Not only does it provide plenty of heat when driving, it will cook me out when parked / camping. This is in winter in Colorado.

[pittwagen]

What is the configuration of the interior of your bus? 7 seater, panel, camper etc. As it sounds like heater boxes are out of the question, what is the budget for some alternative heat that will both warm the back and provide defrost and floor heating for the cab area?

[SGKent]

[Wildthings]

[SGKent]