Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

> What should I do about the engine?, I've got a few choices, need your input
Type 47
post Nov 30 2022, 08:11 PM
Post #1


Senior Member
***

Group: Members
Posts: 783
Joined: 1-June 10
From: St. Louis, MO
Member No.: 11,790
Region Association: None



So, finally after 10 years we are getting it put back together. Things are progressing OK, many issues but things are moving forward to the point where I need to think about what to do when it comes time to put in the engine.

I little history: 75' 2.0 with 62k miles. the PO had replaced the FI with weber carbs but had put the FI in a box. The strategy for the rebuild is to get the car from parts in a box to functioning. The debate about FI vs. Carbs will wait for another time (we did put both SS fuel lines in the tunnel). So we are putting the Webers back on initially.

Here is my engine question: I have 3 engines. Behind door #1 is the 62k engine running fine when car was disassembled. A 75' 2.0. The issues with this, is the emissions crap that was done to the heads. When I realize the emissions crap, I was like WTF what are these tubes?? this engine has no heat exchangers but some kind of exhaust system that eliminate the heat for the HVAC system. Has full engine tin, alt, etc.

Behind door#2 is a late 73' 2.0 core with no tin.

behind door#3 is 74' 1.8 that has been apparently upgraded with a big bore kit. This engine has SS heat exchangers.

So what do I do????

1. just spray WD-40 in the spark plug hole of the original and cross my fingers?
2. rebuild the 73' and put the 2L sheet metal from the original engine on it (it would fit right??)?
3. I can't see a scenario where the 1.8 works. Maybe trade heat exchangers for one to fit on the 2.0s, rebuild and sell it.
4. or put the heads from the 73' on the original engine?

My tech (son) is really getting tired of putting on seals and is jonesing to rip into redoing an engine.

please advise
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
Dave_Darling
post Dec 1 2022, 01:02 PM
Post #2


914 Idiot
**********

Group: Members
Posts: 14,991
Joined: 9-January 03
From: Silicon Valley / Kailua-Kona
Member No.: 121
Region Association: Northern California



You can use the original engine to get the car running while you rebuild one of the other engines.

Engine tin is, for the most part, engine tin and can be mix-and-matched pretty well. The exception is that the 2.0 over-cylinder tins (all years) have the spark plug holes in a different spot than the 1.7/1.8 tins. There is also some difference with the tins that go from the side of the sump to the heat exchangers, due to the 75-76 exhaust being so different, and also a change from the early tail-shift cars to the later side-shift cars on one under-engine piece to make room for the shift linkage.

The 1.8 SSIs should bolt up to the 2.0 engine. If you have a muffler hanger and muffler that match the exchangers, then they will bolt right on and you can run them. The heater hardware is different between the 75-76 cars and the 70-74 cars, though. So if you want heat you will have to source the appropriate bits.

--DD
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Type 47
post Dec 1 2022, 07:27 PM
Post #3


Senior Member
***

Group: Members
Posts: 783
Joined: 1-June 10
From: St. Louis, MO
Member No.: 11,790
Region Association: None



QUOTE(Dave_Darling @ Dec 1 2022, 11:02 AM) *

You can use the original engine to get the car running while you rebuild one of the other engines.

Engine tin is, for the most part, engine tin and can be mix-and-matched pretty well. The exception is that the 2.0 over-cylinder tins (all years) have the spark plug holes in a different spot than the 1.7/1.8 tins. There is also some difference with the tins that go from the side of the sump to the heat exchangers, due to the 75-76 exhaust being so different, and also a change from the early tail-shift cars to the later side-shift cars on one under-engine piece to make room for the shift linkage.

The 1.8 SSIs should bolt up to the 2.0 engine. If you have a muffler hanger and muffler that match the exchangers, then they will bolt right on and you can run them. The heater hardware is different between the 75-76 cars and the 70-74 cars, though. So if you want heat you will have to source the appropriate bits.

--DD


Dave, this is some really good info on the engine tins. It will help a lot.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 1st June 2024 - 10:31 PM