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Author Topic: Type 4 engine problem  (Read 3898 times)
Nisse1
Newbie
*
Posts: 2


« on: March 01, 2017, 22:25:04 pm »

The problem is my 82mm stroke Scat crankshaft. The Scat rods hit the JPM cam lob. To solve the problem we should make a new camshaft and use Pauter rocker arm 1:1,48. Now, I can't faind any Pauter rocker arms but I got a tip, use old Pauter rocker arms with needle roller bearings. I need help!
Best regards
Chrille (member just now!)
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mikko k
Full Member
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Posts: 171


« Reply #1 on: March 02, 2017, 05:16:40 am »

Grind the end of rods and then balance the rods.
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Elnef
Hero Member
*****
Posts: 566


« Reply #2 on: March 02, 2017, 18:58:06 pm »

Is the cam made on 1" basecircle ?
I run with pauter light rod with them there is more space
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Torben Alstrup
Hero Member
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Posts: 716


« Reply #3 on: March 03, 2017, 20:40:00 pm »

What rod bearing journal?
As John asks, what cam base cirkel?


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Nisse1
Newbie
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Posts: 2


« Reply #4 on: March 04, 2017, 13:57:16 pm »

Its chevy, I'm not shore about The basecircle. It's  made by JP Motorsport. Our plane is to make The basecircle a little  bit smaller and then  grind The end of the rods.
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Torben Alstrup
Hero Member
*****
Posts: 716


« Reply #5 on: March 04, 2017, 19:53:45 pm »

Replace the Scat rods with CB rods and their ARP2000 bolts. - Or at least try with one. Just maybe that will give you enough clearance. its worth a try.

T
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Udo
Hero Member
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Posts: 2077



« Reply #6 on: March 08, 2017, 12:40:44 pm »

[ Attachment: You are not allowed to view attachments ] I would highly recommend light Pauter rods . Those are strong and give you enough clearance to the lobe up to 86 stroke. I only use them in type4 engines with bigger cranks
Don't use CB rods in a type4 engine. They need too much space
Udo
« Last Edit: March 08, 2017, 14:58:16 pm by Udo » Logged

Torben Alstrup
Hero Member
*****
Posts: 716


« Reply #7 on: March 10, 2017, 22:08:55 pm »

[ Attachment: You are not allowed to view attachments ] I would highly recommend light Pauter rods . Those are strong and give you enough clearance to the lobe up to 86 stroke. I only use them in type4 engines with bigger cranks
Don't use CB rods in a type4 engine. They need too much space
Udo
Compared to Scat they are not big. actually somewhat slimmer. The Pauter ones are even slimmer, yes.

T
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