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PeteSC Samba Member
Joined: January 26, 2011 Posts: 881
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Posted: Mon Nov 02, 2020 7:06 am Post subject: 36hp distributor clamp |
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I have a Bosch 010 distributor on my vintage-speed inspired 36hp engine, and I also have two working backups. I drive my car a lot, and it seems like every few months my distributor slowly backs out of its set timing. I have tried all three distributors at one time or another. Once timing is set I tighten it down very well, but it never fails to gradually retard over 2-3 months of driving. It's a slow process and I usually don't notice it until it develops a carb pop between gears or some hesitation. I set it at 30° at 3000 RPM, which at idle might be 8-10° advance. By the time I notice the sluggishness it might be somewhere around 25-26° at 3000, or 3-5° at idle.
Is that frequency of distributor movement common? I don't remember dealing with that kind of change on my stock 36hp, but maybe I did and just don't recall. It seems I'd check valves, points, and timing and it would be spot on or a minor adjustment at most. Any tips to get it to hold better? Is there any aftermarket clamp that might hold better?
Last edited by PeteSC on Tue Nov 10, 2020 6:48 am; edited 1 time in total |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76760 Location: Sneaking up behind you
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Posted: Mon Nov 02, 2020 7:53 am Post subject: Re: 36hp distributor clamp |
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The timing should not change. I suspect your clamp have ben bents and straightened a few times over the years which will soften the metal.
Try a different clamp. If you don't have any, PM me I have a number available. _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
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Lingwendil Samba Member
Joined: February 25, 2009 Posts: 3987 Location: Antioch, California, a block from the hood
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PeteSC Samba Member
Joined: January 26, 2011 Posts: 881
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Posted: Mon Nov 02, 2020 12:18 pm Post subject: Re: 36hp distributor clamp |
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Thanks guys, I didn't think it should wander if properly tightened. I'll try some different original clamps and see if that helps. |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76760 Location: Sneaking up behind you
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Posted: Mon Nov 02, 2020 1:03 pm Post subject: Re: 36hp distributor clamp |
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7ft-lbs. _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
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esde Samba Member
Joined: October 20, 2007 Posts: 5927 Location: central rust belt
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Posted: Mon Nov 02, 2020 3:05 pm Post subject: Re: 36hp distributor clamp |
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the timing will change slightly if it raises up a little, not just if it rotates. Make sure that the clamp locks it in down, literally tight down to the case. _________________ modok wrote:
Bent cranks are silent but gather no moss. I mean, ah, something like that. |
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ntngman Samba Member
Joined: August 13, 2006 Posts: 22
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Posted: Mon Nov 02, 2020 3:32 pm Post subject: Re: 36hp distributor clamp |
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I had an issue with the original clamp when I switched over to the 010, if I’m not mistaken, this is a bus clamp.
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PeteSC Samba Member
Joined: January 26, 2011 Posts: 881
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Posted: Mon Nov 02, 2020 7:22 pm Post subject: Re: 36hp distributor clamp |
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esde wrote: |
the timing will change slightly if it raises up a little, not just if it rotates. Make sure that the clamp locks it in down, literally tight down to the case. |
Thanks for that; I think you’re on to something-
I have a fresh 010 that Glenn just rebuilt for me in the last couple months, and he threw a clamp in as well which was appreciated. I’ll give that one a go. |
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PeteSC Samba Member
Joined: January 26, 2011 Posts: 881
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Posted: Sat Nov 07, 2020 10:35 am Post subject: Re: 36hp distributor clamp |
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Update:
Installed the 010 that Glenn rebuilt for me, and used a clamp he sent with it. As seen in the photo above the old clamp was indeed “soft” and allowed the dizzy to pop up a little, as well as slide out of timing and lose its advance. New one sits flush to the clamp and case, and fired right up.
Last edited by PeteSC on Sat Nov 07, 2020 11:23 am; edited 1 time in total |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76760 Location: Sneaking up behind you
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Posted: Sat Nov 07, 2020 10:59 am Post subject: Re: 36hp distributor clamp |
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PeteSC wrote: |
Update:
Installed the 010 that Glenn rebuilt for me, and used a clamp he sent with it. As seen in the photo above the old clamp was indeed “soft” and allowed the dizzy to pop up a little, as well as slide out of timing and lose its advance. New one sits flush to the clamp case, and fired right up.
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Glad to hear it. _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
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PeteSC Samba Member
Joined: January 26, 2011 Posts: 881
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Posted: Sat Nov 07, 2020 11:10 am Post subject: Re: 36hp distributor clamp |
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You do great work, Glenn. That 010 is a thing of beauty. My drive gear is still set for an 019....I need to pull the fuel pump and re-index it so the badge faces out. |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76760 Location: Sneaking up behind you
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Posted: Sat Nov 07, 2020 11:11 am Post subject: Re: 36hp distributor clamp |
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PeteSC wrote: |
You do great work, Glenn. That 010 is a thing of beauty. My drive gear is still set for an 019....I need to pull the fuel pump and re-index it so the badge faces out. |
The 019 and 010 index the same, so it had to be off for the 019. _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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Chickensoup Samba Member
Joined: January 06, 2018 Posts: 5368 Location: Good Hope, GA
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Posted: Sat Nov 07, 2020 12:09 pm Post subject: Re: 36hp distributor clamp |
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PeteSC wrote: |
Update:
Installed the 010 that Glenn rebuilt for me, and used a clamp he sent with it. As seen in the photo above the old clamp was indeed “soft” and allowed the dizzy to pop up a little, as well as slide out of timing and lose its advance. New one sits flush to the clamp and case, and fired right up.
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IDK much about 36ers but whats the metal line elbo thats running out of the case near the distributor? crankcase Ventilation? Is it stock? Sorry, just curious. Thanks _________________ -'85 c10 5.3 LS, 222 cam, long tubes, x pipe, 3 inch spin tech's
-'05 B5.5 TDI Wagon 17in sport rims ;EGR + BSM + ASV Delete, Stage-2 Tune, straight pipe
'65 Tourist Delivery Build
'66 RIP
'69 RIP
Hosea 4:6 "My people are destroyed for lack of knowledge" |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76760 Location: Sneaking up behind you
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Posted: Sat Nov 07, 2020 12:12 pm Post subject: Re: 36hp distributor clamp |
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Oil return line from the canister oil filter.
_________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
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Chickensoup Samba Member
Joined: January 06, 2018 Posts: 5368 Location: Good Hope, GA
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Posted: Sat Nov 07, 2020 12:23 pm Post subject: Re: 36hp distributor clamp |
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oh ok, that makes cents. thanks _________________ -'85 c10 5.3 LS, 222 cam, long tubes, x pipe, 3 inch spin tech's
-'05 B5.5 TDI Wagon 17in sport rims ;EGR + BSM + ASV Delete, Stage-2 Tune, straight pipe
'65 Tourist Delivery Build
'66 RIP
'69 RIP
Hosea 4:6 "My people are destroyed for lack of knowledge" |
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