Heat Exchangers are non existant. CHEAPEST answer?

AndrewWolfeUK · 03-31-2003, 11:37 AM

Hi guys,

The Rush for summer is on.
Getting round to the jobs i don't want to do now and the heat exchangers are almost non existant.
What would be the cheapest way out?
Any ideas

poorsha · 03-31-2003, 11:44 AM

Andi, I think you had better put a little more detail into your question. Are you saying you have rotten heat exchangers and would like to possibly replace them? If so, what size motor? You may also want to add your location (my guess is UK). Steve

AndrewWolfeUK · 03-31-2003, 11:48 AM

Hi,

Its a 1973 2.2 on the owners documents.
The exchangers are quite badly rotten. I didnt want the expence of buying new ones, maybe fab some new ones or just some pipes, who knows.I'm in Yorkshire England.

Thanks

Bones · Bones's Garage

cheapest option is lose the heat and go for headers and a sport rear box

AndrewWolfeUK · 03-31-2003, 11:59 AM

Bones that sounds good, can you explain in more detail please?

CamB · CamB's Garage

Yeah - do you need the heat part of "heat exchangers"?

If not, you could cut the shroud away and see what sort of condition the underlying headers are in. If any damage is minor, they can be welded up.

AndrewWolfeUK · 03-31-2003, 12:08 PM

I live in England! Heat would be an advantage, it just depends on the costs.

Bones · Bones's Garage

well if you want to find out how brilliant this site really is , search on headers , heat exchangers , heating etc , and spend the next few days learning! . But briefly I mean you might want to make the choice to forgo having heating in the car . This is ok if you only drive in summer . and the windows never steam up!
But on cost alone this is the cheapest option because you could fabricate pipes to match the ones you have hidden beneath the heat exchangers (cut the exchangers off) they are scrap anyway or buy some ready made there are plenty of companies around who can supply you , but post here and ask if any one can suggest the best value formoney . With this mod you also lose weight as you can junk all the parts no longer needed and maybe sell them . Failing that idea new mild steel heat exchangers can be had for £150-£180 each I think from Euro car-parts and others . Need more details on your car as there are so many posibilities , put details in your signature or on the left menu

AndrewWolfeUK · 03-31-2003, 12:21 PM

I am looking to upgrade the backbox to a twin exit, can anyone suggest?

Bones · Bones's Garage

Ring around the breakers advertising in '911 and Porsche World' I just picked up a serviceable one in two out rear box for £65.00!!

andyjboy · 12:39 PM

Andi - if it's a '73 model it is a 2.4, if it's a 2.2 it is either a '70 or '71 model !

Whichever model it is, the solution is not going to be cheap (or necessarily straightforward) !

Do a search in the archives here at Pelican & you will find lots of info on the (potential) problems encountered when attempting to remove the old heat exchangers - & how to use heat to minimise stud breakage.

New heat exchangers (& rear box) are available in mild or stainless steel of varying quality - about the cheapest you will find in the UK are the mild steel versions at Eurocarparts (about £250 ea) but I'd also try Bert Gear & Watson Auto Parts. If your car is an mfi version, make sure you get the correct heat exchanger for the lhs as this has an outlet to channel warm to shut off the cold start enrichment device.

Andy
'69 911E------->R

AndrewWolfeUK · 03-31-2003, 12:40 PM

How can i tell what engine and year the car truely is?

andyjboy · 03-31-2003, 12:48 PM

Post the engine numbers (serial no. & engine type no. - they are stamped into the crankcase on the horizontal & vertical surfaces to the lower right side of the fan housing) & the chassis no. here & we'll tell you.

Andy
'69 911E---------->R

AndrewWolfeUK · 03-31-2003, 01:07 PM

O.K> I got *620070911 I think it was 11 at the end but its a bit mashed.

Andn 911/01

emcon5 · emcon5's Garage

Looks like a 1970 911E. 2.2L, MFI

Tom

Joeaksa · 03-31-2003, 01:37 PM

You will want heat if you live in Europe. With the weather and such there the demist is pretty much a must.

SSI or Dansk make very nice stainless steel heat exchangers. They are not cheap but nothing is when its the best in the field. They will outlast the car and never rust out again so if you plan on keeping the car its worth doing it right once as opposed to changing them out every 3-4 years.

JoeA