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Airflow Systems: Difference between revisions
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* You need special oil to lubricate the o-rings before assembly, e.g. [https://www.amazon.com/dp/B008PKVO66 at Amazon]. | * You need special oil to lubricate the o-rings before assembly, e.g. [https://www.amazon.com/dp/B008PKVO66 at Amazon]. | ||
* Follow the manual and use only tiny amounts of Loctite 262 around the bottom end of the rivnut before inserting. The substance is etching and will eat away primer on touch. It will only harden in gaps under pressure. Excessive Loctite will never harden and should be wiped away. Loctite cannot be used to create a fillet. | * Follow the manual and use only tiny amounts of Loctite 262 around the bottom end of the rivnut before inserting. The substance is etching and will eat away primer on touch. It will only harden in gaps under pressure. Excessive Loctite will never harden and should be wiped away. Loctite cannot be used to create a fillet. | ||
*You need a nutsert tool to place the nuts into the bottom skin, e.g. [https://www.amazon.com/dp/B09LV22WL7 this tool (similar to a manual pop rivet puller)] or [https://www.pegasusautoracing.com/productdetails.asp?RecID=9698 this tool (twist type)] with this adapter [https://www.aircraftspruce.com/catalog/pnpages/04-01427.php 8-32].<br>If you have a hydraulic knockout punch tool [https://www.amazon.com/gp/product/B07RT8RKQL e.g. this one from Amazon], you can make an adapter for pulling rivnuts by taking a 2 inch piece of a 3/4 steel rod, cutting a 3/4-16 male thread onto one end and an 8-32 female thread onto the other. Use several strong fender washers and two small washers to support the nutsert towards the punch tool or make a washer from 0.3 inch steel. Use a stainless steel 8-32 set screw as bolt.<br>[[File:2022-09-04 16-18-41.jpg|500x500px]]<br>[[File:2022-09-04 16-16-03.jpg|400x400px]]<br>[[File:2022-09-04 18-07-51.jpg|400x400px]]<br>[[File:2022-09-04 18-09-23.jpg|400x400px]] | *You need a nutsert tool to place the nuts into the bottom skin, e.g. [https://www.amazon.com/dp/B09LV22WL7 this tool (similar to a manual pop rivet puller)] or [https://www.pegasusautoracing.com/productdetails.asp?RecID=9698 this tool (twist type)] with this adapter [https://www.aircraftspruce.com/catalog/pnpages/04-01427.php 8-32].<br>If you have a hydraulic knockout punch tool [https://www.amazon.com/gp/product/B07RT8RKQL e.g. this one from Amazon], you can make an adapter for pulling rivnuts by taking a 2 inch piece of a 3/4 steel rod, cutting a 3/4-16 male thread onto one end and an 8-32 female thread onto the other. Use several strong fender washers and two small washers to support the nutsert towards the punch tool or make a washer from 0.3 inch steel. Use a stainless steel 8-32 set screw as bolt. It takes some 6 full pump strokes to set the supplied nuts.<br>[[File:2022-09-04 16-18-41.jpg|500x500px]]<br>[[File:2022-09-04 16-16-03.jpg|400x400px]]<br>[[File:2022-09-04 18-07-51.jpg|400x400px]]<br>[[File:2022-09-04 18-09-23.jpg|400x400px]] | ||
* The holes in the scoop need to be countersunk for Tinnerman washers. A great tool is [https://www.permagrit.com/large-countersink-100-degree-no-nipple/ Countersink 100º, No Nipple, 11.5mm dia., LC5 from Permagrit] (they ship directly from England). | * The holes in the scoop need to be countersunk for Tinnerman washers. A great tool is [https://www.permagrit.com/large-countersink-100-degree-no-nipple/ Countersink 100º, No Nipple, 11.5mm dia., LC5 from Permagrit] (they ship directly from England). | ||
* There are two options for routing the hoses: through the tunnel or within the side walls. The kit contains only the fittings for the tunnel option (which needs "Z" adapters for the condenser; for routing in the side walls, you need plain 90 degree adapters on the condenser). Specify which routing you want when ordering. | * There are two options for routing the hoses: through the tunnel or within the side walls. The kit contains only the fittings for the tunnel option (which needs "Z" adapters for the condenser; for routing in the side walls, you need plain 90 degree adapters on the condenser). Specify which routing you want when ordering. | ||