253 Conrod Bearings - Holden Technical Talk

Welcome Guest! To enable all features please Login or Register.

Notification

Error

User Name or E-Mail Address:

Password:

Remember me
Take the time to read our Privacy Policy.

Lost Password

Fastlane » Holden Forums » Holden Technical Talk » 253 Conrod Bearings

253 Conrod Bearings

Options

Previous Topic Next Topic

HQ_SS_Andy		#1 Posted : Sunday, 31 July 2022 3:52:50 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 22/08/2020(UTC) Posts: 40 Location: Sydney Thanks: 10 times Was thanked: 1 time(s) in 1 post(s)		The conrod bearings on the 253 I'm rebuilding are stamped: Holden R5J RM50U Does anyone know if these are standard or oversize ? Rgds.


User Profile View All Posts by User View Thanks

HK1837		#2 Posted : Monday, 1 August 2022 9:42:00 AM(UTC)
Rank: Veteran Reputation: Groups: Moderator, Registered, Veteran Joined: 1/03/2005(UTC) Posts: 14,728 Thanks: 1 times Was thanked: 513 time(s) in 489 post(s)		They should have a 3 digit number on them if they are under size, like 001, 010, 020 etc. I reckon they will be STD. A simple measure of the journal will tell.
		_______________________________________________________ If we all had the same (good) taste, who would buy all the Fords?

1 user thanked HK1837 for this useful post.		HQ_SS_Andy on 3/08/2022(UTC)
User Profile View All Posts by User View Thanks

HQ_SS_Andy		#3 Posted : Tuesday, 2 August 2022 6:58:16 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 22/08/2020(UTC) Posts: 40 Location: Sydney Thanks: 10 times Was thanked: 1 time(s) in 1 post(s)		Thanks HK. No 3 digit numbers on them. I suspect they are standard. Pistons are standard. I would measure the journal but cannot find a spec in the manual. Any idea what it should be ? Rgds.


User Profile View All Posts by User View Thanks

Smitty2		#4 Posted : Tuesday, 2 August 2022 9:32:16 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 6/07/2019(UTC) Posts: 384 Location: bayside Melbourne Thanks: 238 times Was thanked: 28 time(s) in 28 post(s)		Originally Posted by: HQ_SS_Andy Thanks HK. No 3 digit numbers on them. I suspect they are standard. Pistons are standard. I would measure the journal but cannot find a spec in the manual. Any idea what it should be ? Rgds. my Holden engine manual says - Connecting rod journal diameter 2.124 - 2.125" out of round .005" MAX Bearing clearance .0007 - .0022" HTH
		Club circuit racing...the best fun you can have with your pants on

1 user thanked Smitty2 for this useful post.		HQ_SS_Andy on 3/08/2022(UTC)
User Profile View All Posts by User View Thanks

Users browsing this topic
Guest (2)

Fastlane » Holden Forums » Holden Technical Talk » 253 Conrod Bearings

Forum Jump

You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.