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05-14-2006
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#1 (permalink) |
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Opeler
Join Date: Mar 2003
Location: Calgary
Posts: 59
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Unanswered: Fuel Pump Bolt Length?
However, it appears that the PO has cut the bolts down (!!!) to make them seat properly. Does anyone have the length of these bolts handy? Thanks! Trev
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The gene pool could use a little chlorine... |
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05-14-2006
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#2 (permalink) |
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Über OpelGT.com Moderator
Join Date: Mar 2002
Location: Calgary, Alberta, Canada
Posts: 4,087
Real Name: Keith Wilford
Provided Answers: 4
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Trevor,
Thread a longish bolt into that the mounting holes in the chain case to see how deep the threads are. Then measure the thickness of the spacer and pump base. Add the two, subtract about 1/4", and use that length. IIRC, it's about 3/4 to 7/8". HTH |
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05-14-2006
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#3 (permalink) |
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Opeler
Join Date: Mar 2003
Location: Calgary
Posts: 59
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Thanks Keith - good idea!
I am second guessing myself now... Are anyone elses fuel pump bolts hardened? Mine are an 8.8 and NOW I am wondering if they are even the original bolts...
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The gene pool could use a little chlorine... |
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05-14-2006
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#4 (permalink) |
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Über OpelGT.com Moderator
Join Date: Mar 2002
Location: Calgary, Alberta, Canada
Posts: 4,087
Real Name: Keith Wilford
Provided Answers: 4
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Umm, we could probably do this by phone or even in person and not bother the members...
"Standard" metric bolts are Gr. 8.8, about equivalent to an SAE Grade 5. Hardened Metric are Grade 10.9, approximately an SAE Grade 8. And some are Gr. 12.9 (Bearing cap bolts etc), and I don't know what the SAE equivalent is. For fun and educations, Google it or go to http://www.boltdepot.com/fastener-in...ade-Chart.aspx or http://www.zerofast.com/markings.htm HTH |
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05-14-2006
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#5 (permalink) |
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Opeler
Join Date: Mar 2003
Location: Calgary
Posts: 59
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Learn something new every day. I was thinking the 8.8 was hardened, not regular. Bolts bought and fuel pump installed. That top bolt is a bit of a crank to get started with the alternator still in!
Tank is next... hopefully this week.
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The gene pool could use a little chlorine... |
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05-15-2006
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#6 (permalink) |
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Old Opeler
Join Date: Jun 2003
Location: New Zealand
Posts: 5,686
Provided Answers: 12
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8.8 = Grade 5
8.8 and Grade 5 bolts are 'medium tensile' heat treated carbon steel. Ungraded SAE bolts 'ordinary'?? are made from mild steel and Metric does not have a direct equivalent.
BTW: Found the listing for the fuel pump bolts 68-74 ALL 2018114 2off Screw, fuel pump on timing hsg. (M8 X 25)
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