924Board.org

headstrong2740 · Joined: 29 Apr 2010 Posts: 111 Location: Moline IL

So i had an interesting event happen yesterday... well.. actually a few days ago and then again yesterday.

The car has had some massive improvments made to it.

The head for starters you all knew about

Its also had the coil replaced, new wires, new cap, new rotor, new injectors, and is running very well.

But.. i jumped on it the other day and got it to about 4500 to 5000 rpm and noticed smoke... let off.. and it quickly dissapeared and did not come back under normal throttle.

I parked the car and opened the hood to find oil on the side of the motor and coming out of the oil fill tube.

My buddy and i talked it over for a bit (he is a former 944 owner) and we came to the conclusion quickly that i had ring problems.

I did a compression test and found the following results:

Cylander 1: 128
Cylander 2: 145
Cylander 3: 150 at this point i was excited that it might not be my rings.... might being the key word of course
Cylander 4: 83...... yes 83

so to make sure it was the rings and nothing else.. i added two small cap fulls of oil into .. and did it again.. this time it was 150... my rings were junk

so now i have to tear out the pistons and replace them.. and hope thats the only thing i replace.

Now i need some input:

what else should i replace while in there... i figure do the rod bearings would be a good things to do as well.

also who and where are the best price rings (cheap but good quality).

When it rains... it pours...this is the newest thing to come up and if you recall the link from my Finally Home thread there is more on there to tell you about it.... need to post more pics on it as well

Thanks in advance for the tips... ill need them soon to get the car going again... its becoming my daily driver and need it running soon. The fiance is driving the VW
_________________
1987 924s "Enzo"
2002 1.8t VW Passat
http://porsche924resto.shutterfly.com/ - follow the progress of "Enzo"

headstrong2740 · Joined: 29 Apr 2010 Posts: 111 Location: Moline IL

also i ment to ask this as well...

Can you just tear apart the bottom and pull the pistons out that way and put them back in....

This way i can avoid tearing apart the top again since its all new and just been replaced.... ill have to tear apart the timing again and put in almost all new FOES... well some
_________________
1987 924s "Enzo"
2002 1.8t VW Passat
http://porsche924resto.shutterfly.com/ - follow the progress of "Enzo"

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

The head will need to come off to assess the bores, so you might as well pull the motor. Frankly, with compression that bad, I don't have high hopes for the block.
_________________
Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

headstrong2740 · Joined: 29 Apr 2010 Posts: 111 Location: Moline IL

rasta... are you refering to the block being bad as in cracked.. or needing to be bored out...or what else?

cant you check bore through the bottom as well?

im trying to avoid an engine pull and all since i do not really have garage space to use at this time and dont know if i could get space at this moment
_________________
1987 924s "Enzo"
2002 1.8t VW Passat
http://porsche924resto.shutterfly.com/ - follow the progress of "Enzo"

headstrong2740 · Joined: 29 Apr 2010 Posts: 111 Location: Moline IL

Well i have come to accept the engine pull and have been shopping around for the parts....

I will begin tear down here shortly it seems and will check the whole block over before i get to ordering parts.

The strange thing that i still cant figure and would like some advice on

I would think that with that bad of compression in one cylander that the car would run like complete cr@p, but thats the thing.... the car runs hard and strong.

I even poured oil in the cylander and check compression to verify it was my rings... and with the oil, the compression shot up to 150. So i know its my rings

Any ideas on why its running so well even with the massive blow by?

Also Rasta, what were you refering to with the issue with the block? Was this in ref to the cylander being damaged or badly worn?

I will be mic-ing everything to make sure its all good... and ordering off the results... Ill keep you guys informed and any advice or feed back is more than welcome

_________________
1987 924s "Enzo"
2002 1.8t VW Passat
http://porsche924resto.shutterfly.com/ - follow the progress of "Enzo"

edredas · Joined: 09 Dec 2004 Posts: 861 Location: Charlotte, NC

joecitizennn · Joined: 12 Sep 2005 Posts: 2096 Location: no mans land

I will sell you a parts car with a good motor minus head for 500. All to have to do is pull the motor and put your head on it. Saves you time and money.
_________________
87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold

headstrong2740 · Joined: 29 Apr 2010 Posts: 111 Location: Moline IL

joe is that car a manual?? and what is the condition of the rest of the car? you have my attention full on for it and might take you up on it

year and model??? LOL
_________________
1987 924s "Enzo"
2002 1.8t VW Passat
http://porsche924resto.shutterfly.com/ - follow the progress of "Enzo"

headstrong2740 · Joined: 29 Apr 2010 Posts: 111 Location: Moline IL

Let me know soon on that car joe.. I might come down early next week and look at it and maybe pick it up.

Also... this thursday i will be starting the engine removal process.

I will be honest.. I started to read the manual on the engine removal process and surprised me that i would need to remove the rack and pinion it seems.

Any tips on the removal of the engine i should be aware of?
I plan to have the engine out in a day if i can if no glitches come my way.
_________________
1987 924s "Enzo"
2002 1.8t VW Passat
http://porsche924resto.shutterfly.com/ - follow the progress of "Enzo"

joecitizennn · Joined: 12 Sep 2005 Posts: 2096 Location: no mans land

Oh crap, I forgot I made this post and have not checked the board in a few. I will pm you my phone number.
_________________
87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold

headstrong2740 · Joined: 29 Apr 2010 Posts: 111 Location: Moline IL

Its ok.... i was patient

lol

"why has he not responded??? its been like two days?!?!"

_________________
1987 924s "Enzo"
2002 1.8t VW Passat
http://porsche924resto.shutterfly.com/ - follow the progress of "Enzo"

headstrong2740 · Joined: 29 Apr 2010 Posts: 111 Location: Moline IL

Well i picked up the parts car from joecitzen.

This parts car is a 84 944 with a solid setup and interior for most part is there... some wear and tear and what not

The plan is this as of right now:

To save the effort of pulling two diff. motors and building one solid one out of them and then putting it back in was to trasnfer everything over to the 944 and build it up....

This ment bringing the 924 down to a parts car... and stripping out what i needed. Sounds like a lot of work.. but in all reality a few good solid days of work would have it done

The first thing to do though is to get a title for it since it did not come with one...... no biggie right?

I started to look for the VIN so i could track down the title and get it switched over..... but this is where the problem comes in... and its not joecitzens fault... so dont start blaming him on this.. LOL

The placard on the drivers pillar is gone..... hmmm.. ok.. so i look for the sticker on the driver side up by the windshield and fender... its there.. but the corner where the VIN is... is ripped off... only the first two numbers are there.

The next number is the one on the battery compartment on the fire wall.... hmm there is an odd cut out.. oh wait.. the stamped number there is cut out and gone.... very odd

The next and last spot i knew of was the sticker in the trunk that has the option codes on it... also has the VIN... yep.. thats gone too

Is there any other places that the vin or the original stamp would be? By original i mean the one the car gets prior to coming over here and recieveing a domestic VIN.

Ill be cheking with the DMV tomorrow to see what my options are on this...

Otherwise.. ill be doing some massive body work and bringing the 944 fenders on to the 924s.. I really really like the way the 944 looks

LOL

Let me know what you guys know cause im not having much luck on the internet trying to find any info.
_________________
1987 924s "Enzo"
2002 1.8t VW Passat
http://porsche924resto.shutterfly.com/ - follow the progress of "Enzo"

gohim · Joined: 02 Nov 2002 Posts: 4459 Location: Rialto, CA

Why mess with the 944 parts car at all? It's a parts car.

The reason that the ID Numbers are all missing could not be good.

The number by the battery was not the US VIN number, it was more like the Porsche Production Number. The US legal number was the one up on the windshield post.

If the parts car was mine, I'd take off the usable parts, and call a scrap guy to come take the rest.

Why take a chance that could stir up trouble, and cost you more than the parts car cost you?

Oh, and good luck mixing parts. You're going to find that the 84 engine block (while rated the same HP as the 87) is a completely different engine from the 87 engine block. You need to be careful when you assemble the 84 block to the 87 head. There were numerous engineering changes between the 84 engine and the 87 engine. Watch out when ordering parts, I don't know which parts are compatible, and why there are different replacement part numbers for some 84 and 87 internal parts. Which I found out when I went to find a replacement block for my 87 924S. I started with an 83 block. After stripping it down, and doing some research, sold it, and bought a 84 944 parts car. I parted that car, and kept the engine. After doing more research, I sold that engine, and bought a 87 944 engine with a broken belts, and the spring tensioner. I sold the head with four broken valves, planning on using my 924S head, as it only had 72K miles on it when the PO ran through a puddle in the rain and hydrolocked the engine, destroying the block.

From experience, I know that Porsche changed the head design, at least three times, and some variations are more desirable than others. There are also some differences in the cam tower assemblies, and some of them are more desirable than others as well. Buying, and selling engine parts to get to where I think I want to be, I've come across people looking for specific part numbers on the blocks, heads, cam towers. I don't remember what the people told me the differences were, but I do believe there was a method to their madness, even as I went from block to block myself.

headstrong2740 · Joined: 29 Apr 2010 Posts: 111 Location: Moline IL

this is very interesting that the blocks are different and all. I have yet to notice an issue with block or anything.

The head look like it should bolt up just fine and not have an issue...

your post has made me nervous and am now looking to see if there are diff. in the setup.

The parts car is acctually up for sale again as s parts car and is available if anyone wants it.

The motor itself is almost done, the lower end is built back up and the top end is about to go back on. So far, i have not seen an issue with diff. in the motor swap. Even sitting next to eachother they look the same.

Oh well.. im sure if there is a diff... i will see it here shortly when i go to put the top end back on.

if thats the case.. then ill be selling a very nice top end here soon. LOL
_________________
1987 924s "Enzo"
2002 1.8t VW Passat
http://porsche924resto.shutterfly.com/ - follow the progress of "Enzo"