'72 911T smoking

[Kiantone]

A near by used car dealer has a '72T with 110k miles. A new 2.7 '80 with Webbers was installed at 55k. The car has a '04 state inspection sticker. The dealer trucked it home, changed oil & plugs started it, let idle 20 minutes, drove for 1/2 mile but was smoking so shut it off. Today there was no oil on dipstick, a few small drips hanging on bottom of engine. He may let out some oil hoping that would cure the smoking. I've read that storing a 911 for years may cause some oil to leak through the motor and collect in muffler (exchanger?). The dealer never said "dry sump" and seems to be more of a body guy then a engine guy. He thinks that in a flat engine the rings seize and score the cylinders. He is way out in the sticks, all his other cars are American made on his lawn.
The right door latch pull is missing and there are a few scratches and a little bubbling paint. The driver seat is a newer Recaro, a CD changer and amp consume the trunk. The color was changed from grey to yellow. The A/C hose is warn by the hood ledge. Has small fender fairs. To my untrained eyes it is not to bad for a 40 year old. If the plugs are dry and a compression test is OK could I be lucky enough to run it for 30 minutes and have the smoke go away? Of coarse it could have full mufflers and bad rings and bad valves. I am more that a hour away from a dealer, very few 911s or mechanics round here. The expertise of this forum makes me want to consider it. The price is $7500 is that reasonable? Would this engine be vulnerable to overheating?

[timmy2]

Post your location and a member that is local to you may be able to help you with a PPI if there are no porsche mechanics around.
2.7 = head stud challenges
Pictures would help.
Price may be high or low depending on condition, hidden rust etc.
Do you have another $10k to $20k to put into the car?

[Kiantone]

Now nobody go and steal it from me OK ? Jamestown N.Y. zip 14701
The head stud is overheat related? $10K over time maybe not $20K.

[timmy2]

Head studs are magnesium case related.
Do a search, lot's of info here on the 2.7.

[Kiantone]

A local mechanic with good rep. will do a compression test, leak down and PPI. I'll drive it there with fire extinguisher and maybe a five gallon pail of wet towels. If the mufflers have a fair amount of oil could I drill small holes in just the right places to let out some of it? Hot oil in a muffler might not catch fire wile motor running because of low O2 but after shut off would fresh air be pulled into the still hot oil? How long to run to blow out the oil? I think someone said 30 minutes, need high RPM the entire time? pics soon.

[RSTarga]

make sure it has oil. at this point i would drain tank and sump, change filter and add 9 quarts.
drive it for at least 30 minutes and oil will burn out of exhaust.
now check oil level engine running.

[RWebb]

2.7L from a 1980??

is that what they told you?

[pete3799]

Check for rust then check it again for rust. A 1980 motor would be a 3.0 not a 2.7.
Have someone knowledgeable with Porsches check it out for you.
$7500 might be a good buy........or it could be a money pit.
Post some pictures if you can. Serial numbers (car, motor and trans.) would help also.

[Kiantone]

I saw the $5500 bill for the new motor from 1980, wish I had the bill in front of me now to be sure. It has a line for the case and six cylinders, I'll try to get a pic of that too. The underside looked good, only a few small places where undercoat was gone a little rust where the battery was. It had been stored inside most of the time. No one likes the drill the muffler to let the oil out idea? Does the cam chain jumping happen at high RPM only?

[Kiantone]

The oil in it now has one mile and twenty minutes on it if the guy is accurate. Some have told me to add a quart of ATF to free up the rings with the high detergency.

[GaryR]

Originally Posted by Kiantone

He may let out some oil hoping that would cure the smoking.

Used car dealer? Bet he hands you this -

[Kiantone]

Edit Does the cam chain jumping because the spring breaking happen at high RPM only?

[Kiantone]

Originally Posted by GaryR

Used car dealer? Bet he hands you this -

Cut it in to little bits and put in oil tank? Or stick on to muffler?

[RWebb]

rust:

check near & beneath the battery, pedal cluster & tail light housings

then pull out the headlights & look in there

early cars are worth something even w/o the matching motor

[Arne2]

For $7500 I'd be tempted to take a chance on a long hood as long as it's not rusty.

[ossiblue]

Originally Posted by RWebb

rust:

check near & beneath the battery, pedal cluster & tail light housings

then pull out the headlights & look in there

early cars are worth something even w/o the matching motor

Originally Posted by Arne2

For $7500 I'd be tempted to take a chance on a long hood as long as it's not rusty.

THIS^^^

Spend your time investigating the body/rust issues and post pictures if at all possible. You are dealing with someone who, apparently, doesn't know much about Porsches, let alone early cars. $7500 could be an excellent price if the body is solid and relatively rust free--especially for a 72. You need expert help, however, to determine if it is solid. If the body needs considerable rust repair, the unique oil tank has been removed, and the engine is marginal, all bets are off.

[E Sully]

Just a quick check, is the oil level being checked with the engine warmed up and RUNNING. With the engine off the oil level will not show on the dipstick. It should be not be filled over the halfway point on the dipstick. When the ppi is done make sure he checks the headstuds. 2.7 with soft mag case may have pulled studs.

It sounds like the engine was swapped in 1980 for a 2.7. There are 2 numbers on the engine to the right of the fan housing. One is the serial number and the second is the engine type. If it was a new replacement 2.7 it might not have a serial number, but it will have an engine type number.


Bubbling paint means there is a good amount of rust underneath. Sounds like it was quickly repainted to cover rust instead of repairing it. Suspension pan, battery boxes, rockers are places to poke with a screwdriver for rust. A quick check of the rockers would be to use the factory jack to try and raise the car. If the jack points bend they are shot. A lot lf times the undercoating and paint can look good, but underneath the metal is rusting.
This car looked good on the outside but if you read the thread you get an idea what can be underneath.http://forums.pelicanparts.com/paint-bodywork-discussion-forum/545166-restoration-my-69-911-a.html
If it has a solid body and engine passes ppi it could be a fun car. If it has a lot of hidden rust, or the engine needs work $20,000. can disapear quickly. It's one of the reasons some cars sit in the garage, too expensive to repair.

[calling911]

"Bubbling paint means there is a good amount of rust underneath. Sounds like it was quickly repainted to cover rust instead of repairing it. "

Respectfully, not necessarily. A number of prep issues can cause bubbled paint.

[RWebb]

true - it will still need $$ for a repaint tho

post your body & mech. skill level

[chiroracer]

Could be OG engine rebuilt in 80 to 2.7 Check the rust situation first. S