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Post by zonker on Oct 11, 2019 6:01:48 GMT
Has anyone done a conversion on a 2 cyl DAF from front drum to front disc brakes? I understand the 66 front discs will work if you change out the spindles as well but I was wondering if anyone has used another vehicle's disc brakes to adapt to the 46?
One thought came to mind after I found out the 68-79 VW Classic Beetle uses the same front inner and outer wheel bearings... what if you took VW hubs/rotors and calipers/brackets and adapted them to fit, then had the rotors drilled out for the DAF wheel bolt pattern?
I see full kits with conversion brackets and un-drilled rotors to fit the drum brake equipped V-Dubs selling for $275 usd.
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gromsound
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Post by gromsound on Oct 11, 2019 14:39:22 GMT
sounds like a lot of work (mounting of the anchor plate on the strut will also be different, as will be the brake hose threads) with uncertain ending, when the D/V66 stuff just bolts on... they were made on the same line, the Daf 66L even had the same (rotten) duplex drum brakes as the 46.
i once fitted a 66L with only the brake servo of a V66 that helped a lot already. i think the 850cc doesnt need discs if you dont plan to do rallys with it ;-)
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andrew
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Post by andrew on Oct 11, 2019 22:20:00 GMT
+1 with the above comments. Daf brakes are generally adequate if adjusted properly and the vacuum system, which assists the braking when the brake pedal is depressed by switching the vacuum to make the transmission down, is correctly set up. Remember that some Daf 66 cars were built with drum brakes, so they can't be exactly weak!
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Post by zonker on Oct 12, 2019 5:02:39 GMT
I face a little more unique set of circumstances regarding brakes - there ane no DAF 66's in the USA to donate their brakes, and importing full brake and strut assemblues from the EU is costly, so the beetle choice might be a more reasonable one for me here.
The argument that the stock brakes on a 46 are wholly adequate may be true - I have very little wheel time in my DAF since buying it last month since it's been on jack stands waiting on a set of tires (Fed Ex lost my original shipment). Once the car is on the ground, with brakes adjusted and hydraulics bled, I'll be able to gauge just how adequate the brakes really are.
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Post by Richard DAF Webmeister on Oct 12, 2019 15:28:28 GMT
I would agree that it should be fine to keep to original as DAF designed and planned. Just keep them maintained and they will do the necessary job.
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Post by dafman50 on Oct 13, 2019 13:46:38 GMT
44/46 brakes are perfect for the car. If you were running more hp or using for rally trials then maybe covert.
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Post by zonker on Oct 15, 2019 5:39:09 GMT
Today was the day for me to actually put some miles on the car - I drove it for approx 60 miles today in various types of traffic and the brakes are fully up to the task. For now.
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andrew
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Post by andrew on Oct 15, 2019 15:23:54 GMT
Is it changing up and down properly? When slowing for a stop sign or a red traffic light the engine should rev up as the car slows. This is the engine braking helping the car slow. If it's nothing this the brakes have to work harder and you might not be in the right gear to start off from rest.
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Post by zonker on Oct 15, 2019 20:20:18 GMT
andrew yes, the revs increase as you brake - although there is a vacuum leak somewhere in the system because whenever I depress the brake pedal or select the hill holding switch, the car's idle increases and creates a slight miss. In order to tune her up, I had to find a happy medium between the brake pedal/hill holder applied and when it's not. Now she idles well under both situations but shes at two different speeds and a tad rich off the brake pedal (800 rpm) and a tad lean (950 rpm) on.
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Post by bobdisk on Oct 16, 2019 5:07:39 GMT
Zonker, Actually thats correct, apart from the misfire. My 33 does that with the revs with the brake pedal and the green "change down" switch, (not sure about the actual rev figures) When I first got it, I did think there was a fault, but Andrew put me right. There is a thread somewhere on this site, but I cant remember where!
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Post by starider on Dec 5, 2019 0:01:51 GMT
Hi,it is important that the engine revs do increase when braking down to stop,as previously stated it is to assist the braking efficiency by using the engine as a braking force as well.As I've said many times the increase in revs is to keep the centrifugal clutch engaged.As everyone agrees,Daf brakes are perfectly adequate if maintained properly.........starider
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