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another 4.6 question
Posted: Sun Dec 21, 2008 10:53 pm
by ian.stewart
How much longer is a serp engine than a P6 engine. suppose a datum is needed, No1 piston cylinder head front face to the front of the serp bottom pulley
Posted: Mon Dec 22, 2008 1:32 am
by RoverP6B
Hello Ian,
I have a 4.6 residing in my P6B.
The engine is fitted with an SD1 timing cover while all other ancillaries are of P6 origin.
Everything fits just the same, LOA is the same, width the same, no problems were encountered at all.
A spacer is used with the pulley on the cranksaft nose, and the front section of the P6 sump needed to be "relieved" to accomodate the stoke of the crank, but apart from that.....
Ron.
Posted: Mon Dec 22, 2008 9:35 am
by ian.stewart
Can I run a serp type cover and pump with a P6 bottom pulley as I dont need a dissy, or will I need to change my cam? or will the waterpump get in the way ,
I think I would prefer to run a serp front, if possible,
Posted: Mon Dec 22, 2008 1:11 pm
by ChrisJC
Can't you run a GEMS cover?, they're very short.
Chris.
Posted: Mon Dec 22, 2008 6:30 pm
by ian.stewart
ChrisJC wrote:Can't you run a GEMS cover?, they're very short.
Chris.
Dont know thats why I am asking silly questions,
Posted: Mon Dec 22, 2008 9:05 pm
by ChrisJC
I can measure if you like, but for starters here's the difference between a GEMS and Range Rover EFi timing cover.
Chris.
Posted: Mon Dec 22, 2008 9:50 pm
by ian.stewart
Well, that answers that, seems to be about as short as my hybred front end.
Cheers mate
4.6 GEMS cover dimensions
Posted: Fri Dec 26, 2008 4:17 pm
by 4.6 MGBegun
The front cover on my GEMS 4.6 measures just 5 inches from the block face to the front of the crank pulley.
I have a photo that I'll post if someone can tell me how.
Posted: Fri Dec 26, 2008 5:13 pm
by ian.stewart
Thanks for that, Ill be out with a measure later,
Just researching the best way to build a BULLIT PROOF bottom end, looking at a set of Crowers at the moment,
Posted: Fri Dec 26, 2008 7:12 pm
by ChrisJC
It's about 5.5" to the front of the water pump pulley:
Chris.
Posted: Sat Dec 27, 2008 2:13 am
by 4.6 MGBegun
Using an edge graduated ruler, I measure 5 inches from the block face to the front edge of the crankshaft pully. Maybe 5 and 1/32.
This is on a US Spec 1996 GEMS 4.6