 M10 bolt openings but M8 muffler exhaust gasket holes |
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| Tdskip |
 Apr 23 2024, 09:31 AM
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#1
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Advanced Member  Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None 
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Thank you all again for the coaching on the fuel lines yesterday – I connected it properly, using the return line.
When I did a test fit of the 2 L exhaust headers to the 2 L muffler everything properly located, but I noticed that the bolt holes all appear to be M10 diameter, but the actual opening on the exhaust gasket that they pass through are M8. Was that done to allow for a slight adjustment in how the exhaust lines up or do I just have a funky set of exhaust gaskets? Thanks! |
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| Shivers |
Apr 23 2024, 09:38 AM
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Senior Member Group: Members Posts: 2,368 Joined: 19-October 20 From: La Quinta, CA Member No.: 24,781 Region Association: Southern California |
If I was in your shoes, and there is room to in large the holes on the gasket, I’d use the 10’s.
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| ClayPerrine |
Apr 23 2024, 09:40 AM
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Life's been good to me so far..... Group: Admin Posts: 15,436 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(Tdskip @ Apr 23 2024, 10:31 AM)  Thank you all again for the coaching on the fuel lines yesterday – I connected it properly, using the return line. When I did a test fit of the 2 L exhaust headers to the 2 L muffler everything properly located, but I noticed that the bolt holes all appear to be M10 diameter, but the actual opening on the exhaust gasket that they pass through are M8. Was that done to allow for a slight adjustment in how the exhaust lines up or do I just have a funky set of exhaust gaskets? Thanks! The bolts are M8x1.25. When installing the exhaust, you need some play in the fittings. So we have M10 holes to allow us to adjust how the exhaust fits. Just a note. When installing the exhaust, fit the heat exchangers but do not tighten the nuts that hold them to the head. First fit all the exhaust, including the muffler and the hanger. Then start by tightening up the muffler to heat exchangers, and the hanger to the transmission. Then tighten up the heat exchanger to head nuts. This makes sure everything fits correctly. |
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| Geezer914 |
Apr 23 2024, 09:55 AM
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Geezer914 Group: Members Posts: 1,393 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States
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Clay, I think you have more wiggle room between the muffler and the heat exchangers rather than the heat exchangers to the head. You want a tight fit of the pipes against the head against the copper gaskets.
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| Tdskip |
Apr 23 2024, 10:07 AM
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#5
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Advanced Member Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None
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