Duck

This morning I was able to get out the rear (near bumper) engine tin out of the car (not sure how easy it will be to get back in). It is seriously rusted and needs some patching and painting. This may take me a while (couple of weeks) considering I get short blocks of time to work on projects. If I get a 4in diameter tube to connect the blower to the heat exchangers, could I run for a short time without the rear engine tin. It is not my daily driver and I am currently running with a primary bypass. I assume the engine tin has something to do with keeping heat out of the engine compartment.

As always, I appreciate the assistance I receive on this BB.

Thanks,
Michael

springer3

Exhaust parts glow red when the engine is under load, and when you idle after running, a lot of the air entering the fan will be scalding hot - just off the exhaust pipe. I would not take the risk.

Duck

Thanks Springer3. I will try to finish the parts quickly and not worry about driving it until it is back together.

Thanks,
Michael

boxsey911

Just wondering how you got on with replacing this big tin while the engine was in the car? Success? Any tips to do the job? BTW they're amazingly expensive over here at 247.25 GBP!!

And has anyone got a pic of tin#2 (which is shown in the diagram in Kirk F's thread below) on an engine?

https://rennlist.com/forums/964-foru...ght=engine+tin

At the moment I have a strange feeling that there isn't one on my engine i.e. it's been eaten by rampant rust

Streetfighter

I would suggest looking into buying a used one. Mine too is rusted with holes all over the place. Some salvage yards may have a decent looking tin for sale. I would try that first before welding yourself, may save you a lot of time.

mrmoots

Item two is on the left



There is a small section that bridges over the power steering pump, top right of this photo.

boxsey911

Thanks Mr Moots...I'll examine the PSP area more closely to see if I can find a remnant of #2 tin. I've just ordered the two small side tins (mine are not saveable - full of holes) and might take your lead and paint them up before fitting .

Would still like to hear from Duck about swapping out that big rear tin (again mine is not salvageable) while the engine is still in - no chance of me getting the engine out at home.

tbennett017

You can get that rear tin out and back in without too much hassle. You need to remove the exhaust, and there are 10MM bolts holding it in in various places. Don't forget that there are two that are accessed from the top right along the back of the engine mount crossmember.

I took mine out and got it back in with less hassle than you might think. I also removed the distributor as I was planning some work on it. It made the job easier.

Getting it back in takes some patience, and I found using a pointed drift through the holes (helping pull the alignment right like a fid) helped a lot getting it into position. Don't forget the rubber gaskets that are between the tin and the timing chain covers.

I painted mine gray so I can see any oil leakage... Not so easy to see, as I wasn't planning to show of the tin, but you get the gist...

boxsey911

Thanks TBennet...also very helpful pics. Since I'm going to be taking most of the exhaust off to fit the side tins and fit new valve covers (your first pic is of great help there) I might aswell get the big rear tin at the same time.

964russ

The big rear tin bit fell of mine b4 the run to wales last weekend, found a lrge piece ov rusty metal on the floor behind my car .
Not happy but not 2 bothered either.

hans2

Why did Porsche neglect rustproofing for the engine tins when the body panels were given comparatively good protection?

Marc Shaw

I just replaced all mine with nice new (or nearly new from the breakers) powdercoated tin.

Marc

Wachuko

And did you take photos of the process to share with us??

boxsey911

OK I'm still confused. I haven't found item 2 yet. I've found item 1 (right in the pic above) which is mounted on the left of the engine, gearbox side.

So is item 2 supposed to be on the right side of the engine, bumper side?

While I'm at it, has anyone re-newed item 1 (let's call it the front left engine tin) while the engine is in? It looks like there's only a couple of bolts holding it on plus the hassle of undoing sensor wires that are routed through it.

engine diagram for reference:

Mark J

for the un-itiated,ie me, what does all that engine tin do ? is it essential ? i can imagine everybody is in a similar boat rust/wear wise after 17-20 years of driving in the UK ! Though it looks a pita to replace unless your handy with a set of spanners