I think that method will work. Just be sure to note the dimensions needed, as posted earlier in this thread....posts #16 and 19.bringing up an old thread here - if one were to cut down a DOHC version to fit the SOHC motor, what method would you use? Lathe would be great of course, but I don't have one. I'm temped to scribe a nice reference line and use a cutoff wheel and then finish on a grinder or sandpaper or both. Thoughts?
Is my thinking correct?
I measured the DOHC one I had (before I cut it). The hole was about 68 mm deep.So I actually made a modified version of this plug this week. I was curious about the hole in the engine end. That isn't necessary right? If I remember right the oil pump gear is flat on top. I'm guessing the plug just needs to keep it from coming out of the engine?
Also, in the drawing there isn't a dimension for the depth of the hole.
I think the key part is the step in the distributor shaft (i.e. the change from the larger outer diameter down to where it's machined before the splines) - this locates into the recess in the drive gear. While the gear may stay in place under normal circumstances, it would be stopped from coming up when it hits the step of the shaft (in your picture you can see a shiny half-moon section where there's been possible previous contact). I don't think it's always in contact, it's not a bearing surface, but the amount of allowed play is more like 1mm I'd guess, so this is what you should aim for with the blanking plug (whose contact point will now be on the top face of the drive gear instead).So after looking at this last night I don't think the depth of the plug (or wether it is hollow or not) is critical at all. I really think it just needs to plug the hole to keep oil in and junk out.
I'll take it!!Hi have one for a SOHC if you need one. $10 plus shipping. It is midway down on my page:
Fiat Parts
Updated on Friday, September 8, 2023 I have a lot of Fiat X1/9 Parts I am looking to get rid of. I am based in Central PA and you are welcome to pick up in person or I can ship. Prices below not include shipping. I will do quantity discounts. I do not have any wheel sets or new parts. I dosites.google.com
Rob