 Heat exchanger to muffler, Something’s not right? |
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| BENBRO02 |
 Sep 19 2021, 03:24 PM
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#1
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Member  Group: Members Posts: 483 Joined: 6-March 15 From: Nokesville, Virginia Member No.: 18,493 Region Association: MidAtlantic Region 
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I bought a sport quiet muffler and it has 4 inlets but my heat exchangers have 2 outlets with a different bolt pattern. Are my heat exchangers non-standard or did I buy the wrong muffler?
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| Montreal914 |
Sep 19 2021, 03:41 PM
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#2
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Senior Member Group: Members Posts: 1,593 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California
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Your heat exchangers are of the 75-76 model whereas your muffler is an earlier one. I cannot establish from the muffler flange if this is a 2.0 or a 1.7 muffler.
Is this muffler from Ben @mb911 ? I am sure he will chime in. So, in order to use this muffler, you will need the right heat exchangers (70-73 for 1.7 or 73-74 for 2.0). The good news is that the earlier ones will bolt on to your engine. Good luck, I am sure others will give more input! |
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| BENBRO02 |
Sep 19 2021, 04:10 PM
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#3
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Member Group: Members Posts: 483 Joined: 6-March 15 From: Nokesville, Virginia Member No.: 18,493 Region Association: MidAtlantic Region
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QUOTE(Montreal914 @ Sep 19 2021, 05:41 PM)  Your heat exchangers are of the 75-76 model whereas your muffler is an earlier one. I cannot establish from the muffler flange if this is a 2.0 or a 1.7 muffler. Is this muffler from Ben @mb911 ? I am sure he will chime in. So, in order to use this muffler, you will need the right heat exchangers (70-73 for 1.7 or 73-74 for 2.0). The good news is that the earlier ones will bolt on to your engine. Good luck, I am sure others will give more input! It is one of Ben’s mufflers but I bought it used. I’m pretty sure it was for a 1.7 or 1.8 because I knew there was a difference between 1.7/1.8 and 2.0. I didn’t realize I would need new heat exchangers because my car is a 1975. Thanks for the explanation |
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Posts in this topic
BENBRO02 Heat exchanger to muffler Sep 19 2021, 03:24 PM
dlee6204 Looks like you have factory '75-76 heat exchan... Sep 19 2021, 03:37 PM dlee6204 Its also not just the heat exchangers that are dif... Sep 19 2021, 04:39 PM brant The good news
If you back date the heat exchanger... Sep 19 2021, 05:22 PM
JamesM
The good news
If you back date the heat exchange... Sep 19 2021, 07:20 PM BENBRO02
The good news
If you back date the heat exchang... Sep 19 2021, 07:57 PM wonkipop
[quote name='JamesM' post='2946794' date='Sep 19 ... Sep 19 2021, 10:49 PM rhodyguy Your muffler choises will be limited but WAY cheap... Sep 19 2021, 06:45 PM rfinegan Here is what a set of 1.7/1.8 OE HE look like...I... Sep 20 2021, 04:23 AM |
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