Ex Member Posted March 25, 2020 Share Posted March 25, 2020 Yes. You are not going to notice unless you know they are there. It will make life easier knowing about it. Once the dowel bolt it in, then than other six go in with no fuss. Quote Link to comment Share on other sites More sharing options...
Peaklander Posted March 25, 2020 Share Posted March 25, 2020 Thanks @Red90. Quote Link to comment Share on other sites More sharing options...
toenden Posted March 27, 2020 Share Posted March 27, 2020 This got me thinking, can leaving the dowelbolt out and turning the swivel ad får as it goes, be a good way to castorcorrect when lifting the suspension? /Mads Quote Link to comment Share on other sites More sharing options...
Gazzar Posted March 27, 2020 Share Posted March 27, 2020 1 hour ago, toenden said: This got me thinking, can leaving the dowelbolt out and turning the swivel ad får as it goes, be a good way to castorcorrect when lifting the suspension? /Mads I've heard of people adjusting the castor by filling the holes into slots. I'm not sure about that, it's a really stressed part, especially as lifted vehicles usually have bigger wheels. Quote Link to comment Share on other sites More sharing options...
western Posted March 27, 2020 Share Posted March 27, 2020 The dowel bolt is listed as item 10 in the 110 1987 on parts book, Can't say I've ever noticed the difference before when I've split the stub axle from the main casing. Quote Link to comment Share on other sites More sharing options...
Mutley Posted March 27, 2020 Author Share Posted March 27, 2020 Ok I'm as thick as Pig #$@% on this matter and CANNOT get this round my head??? So if someone can explain so a Child of 2 yrs. Can understand that would be great!!! Or, what why don't i just put ALL Dowel bolts in and then it's sorted for definite!?! No??? Quote Link to comment Share on other sites More sharing options...
Peaklander Posted March 27, 2020 Share Posted March 27, 2020 Imagine if you bolted it up with bolts that are way too small, say 6mm. Although you nip them up tight, the swivel could have been fixed in one of a variety of rotational positions as the bolts are not a snug fit in the holes and so it can turn slightly with respect to the axle. That means that the castor angle will not be precisely set. Put in a dowel bolt, a precision machined part, where the bit between the head and the top of the thread is exactly the correct diameter to be a tight fit in the bolt hole. Now you don't have any looseness and the swivel has to be in a single position and so takes on just one caster angle. Apparently this is more precise than using standard bolts all way round which are not as snug a fit. Just how much variation this creates in the castor is beyond my pay grade but I believe Red90 quoted this somewhere above. Quote Link to comment Share on other sites More sharing options...
Mutley Posted March 27, 2020 Author Share Posted March 27, 2020 @Peaklander thanks for that bit of info, i have a better understanding of this, but then the question has to be why not use ALL Dowel bolts and be done with it!?! If the idea is you want it set in the precise exact place!?! Why have the hassel of undersized bolts being held in place by ONE perfect fittining bolt??? Surely if there is any stress/stain on the x1 bolt it would be better spread over all bolt or say x3 Dowel and x4 of the other? Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted March 27, 2020 Share Posted March 27, 2020 The flange for the swivel ball also has a machined lip which locates into the machined end of the axle flange. On its own this would allow rotational inaccuracy however when combined with a dowel bolt it fixes the position exactly. Because of this only one dowel bolt is needed. Quote Link to comment Share on other sites More sharing options...
Ex Member Posted March 27, 2020 Share Posted March 27, 2020 16 minutes ago, Mutley said: @Peaklander thanks for that bit of info, i have a better understanding of this, but then the question has to be why not use ALL Dowel bolts and be done with it!?! Because they would be really hard to get in unless everything was really precisely machined. Having one, aligns the swivel and then the other six screw in with no problem. The system is well designed. Stop worrying about it. There should be no shear stress on the bolts in service when torqued properly. I only first mentioned it because clearly many people do not know. Most people work one side at a time, so can't have an issue. Some people do both at once and mix up the parts. This can cause an issue. Quote Link to comment Share on other sites More sharing options...
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