 Exhaust Dimensions?, 1.7 & 1.8 vs. 2.0 |
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| Thestigz06 |
 Dec 10 2011, 12:20 PM
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#1
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Aspiring Jarhead  Group: Members Posts: 238 Joined: 22-February 11 From: Temecula, CA Member No.: 12,749 Region Association: Southern California  |
Ive noticed that alot of different exhausts marketed (exchangers and headers) for different size motors so whats the difference measurement wise in the 1.7 vs the 2.0?
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Replies(1 - 9)
| Dave_Darling |
Dec 10 2011, 09:07 PM
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#2
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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The main difference is at the muffler flanges, where the heat exchanger part bolts up to the muffler. The 1.7 (and 74 1.8) versions are a different distance apart when mounted on the engine, and they are a little further up off the ground.
There is at least one post out there that has the measurements along with pictures, but I haven't looked for it in a while. --DD |
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| pilothyer |
Dec 11 2011, 02:36 PM
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#3
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Member Group: Members Posts: 838 Joined: 21-May 08 From: N. Alabama Member No.: 9,080 Region Association: South East States |
 QUOTE(Thestigz06 @ Dec 10 2011, 12:20 PM)  Ive noticed that alot of different exhausts marketed (exchangers and headers) for different size motors so whats the difference measurement wise in the 1.7 vs the 2.0? Compliments of The Jeff Bowlsby Site. This picture is worth a thousand words. |
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| johannes |
Dec 12 2011, 06:33 AM
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#4
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Club Porsche 914 France President Group: Members Posts: 3,084 Joined: 13-January 06 From: France Member No.: 5,409 Region Association: France |
1.8 and 2.0 of 1975-1976 exhaust system is also very different.
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| Thestigz06 |
Dec 12 2011, 10:32 AM
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#5
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Aspiring Jarhead Group: Members Posts: 238 Joined: 22-February 11 From: Temecula, CA Member No.: 12,749 Region Association: Southern California |
Good to know. Thanks from the knowledge guys! (IMG:style_emoticons/default/smile.gif)
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| Highland |
Jul 10 2014, 05:12 PM
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#6
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Senior Member Group: Members Posts: 513 Joined: 8-August 11 From: San Diego, CA Member No.: 13,418 Region Association: Southern California |
I just put on my heat exchangers/exhaust on my 2.0L (torqued to 15 ft-lb at the heads) and the 19 3/4" dimension shown in the picture measures 19 1/4" on my set-up. Engine is outside of car.
Do I have to loosen up the exhaust to head nuts to wiggle the muffler and muffler bracket in place then tighten everything or is there something wrong? |
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| Drums66 |
Jul 10 2014, 05:29 PM
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#7
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914 Rudiments Group: Members Posts: 5,321 Joined: 15-January 03 From: Coronado,Cali Member No.: 151 Region Association: Southwest Region |
QUOTE(johannes @ Dec 12 2011, 05:33 AM) 1.8 and 2.0 of 1975-1976 exhaust system is also very different. .....Yes! (IMG:style_emoticons/default/idea.gif) (IMG:style_emoticons/default/bye1.gif) |
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| Highland |
Jul 10 2014, 06:33 PM
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#8
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Senior Member Group: Members Posts: 513 Joined: 8-August 11 From: San Diego, CA Member No.: 13,418 Region Association: Southern California |
I think they're 2.0L 73-74 heat exchangers. Aren't the 75-76 more square? and the 1/7/1.8 L heat exchangers have a vertical bend at the muffler end?
I know it's a poor picture, but maybe someone can tell me if I've got the wrong part.  |
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| bdstone914 |
Jul 11 2014, 08:04 AM
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#9
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bdstone914 Group: Members Posts: 4,537 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
QUOTE(Highland @ Jul 10 2014, 04:12 PM) I just put on my heat exchangers/exhaust on my 2.0L (torqued to 15 ft-lb at the heads) and the 19 3/4" dimension shown in the picture measures 19 1/4" on my set-up. Engine is outside of car. Do I have to loosen up the exhaust to head nuts to wiggle the muffler and muffler bracket in place then tighten everything or is there something wrong? Yes loosen the nuts on the exhaust studs at the heads and you can get the muffler and bracket to line up. Bruce |
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| Highland |
Jul 11 2014, 07:25 PM
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#10
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Senior Member Group: Members Posts: 513 Joined: 8-August 11 From: San Diego, CA Member No.: 13,418 Region Association: Southern California |
That worked. Thanks for the help.
A couple more questions. 1) Does it matter what order in which I tighten everything back up? 2) Do I just add washers between the transmission and muffler hanger to close up any gap there?  |
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