AJP 4.2 liners
Discussion
Just had the coil packs changed as the car was misfiring. Whilst there it was noticed that compression was down on cylinders 1&3 so I'm looking at the rebuild possibilities. I'm hoping it's just rings but...
It doesn't appear there's any 4.2 cylinder liners around at the moment. Anyone got some put aside? The alternative is to go 4.5 but that gets very expensive as I'll need lots such as crank, pistons, liners etc...
It doesn't appear there's any 4.2 cylinder liners around at the moment. Anyone got some put aside? The alternative is to go 4.5 but that gets very expensive as I'll need lots such as crank, pistons, liners etc...
scerbera said:
I'm planning to increase stroke on my rebuild so will need new liners, i hope to be getting around to looking at engine within the next 4 weeks. I have a 4.2 so could work out, i'd want to sell as a set though probably. I have no idea condition as yet. Thanks.
Why will longer stroke need new liners? Except if you were going 5.0+ and needed deck spacers..scerbera said:
Jhonno said:
Why will longer stroke need new liners? Except if you were going 5.0+ and needed deck spacers..
Sure, I have hopefully acquired a crank with a stroke of 103mm.Thanks all. I've no idea what condition the engine is in yet. Replacing the coils has got rid of the misfire but compression is low on pots 1 &3 and I had an oiled plug. Drove it home last night and it didn't seem too bad so I'm forever the optimist that it shouldn't be too bad. The engines around 55K miles.
I'm going to get the engine out next month and sent to Jason at Str8six, I think he's the best specialist for this, but he has no window to do it until after 16th October, so I've around a month to sort something out.
Scerbera - if your liners are good then I'll be interested. If not required I'll keep them as spares as I plan to hang onto my car for a long time yet.
Jhonno - thanks for the hint for Westwood liners, I'll contact them and see what they say.
Oh well, engines the only thing left that hasn't been touched since it came from the factory. It really will be like a new car after all the work over the last 5 years!
I'm going to get the engine out next month and sent to Jason at Str8six, I think he's the best specialist for this, but he has no window to do it until after 16th October, so I've around a month to sort something out.
Scerbera - if your liners are good then I'll be interested. If not required I'll keep them as spares as I plan to hang onto my car for a long time yet.
Jhonno - thanks for the hint for Westwood liners, I'll contact them and see what they say.
Oh well, engines the only thing left that hasn't been touched since it came from the factory. It really will be like a new car after all the work over the last 5 years!
)Chim450 said:
Byker28i said:
Hard to tell and was my thought, I'm told it's smokey on one side. Now the doubts there, I'll get it stripped and looked over.
Just to be cheery, does it use much coolant? Low compression and smokey exhaust (especially if white) could be a cracked/porous block. Jhonno said:
Depends what liners you have currently.. Crank and rods are the same.. If you have the "Siamese" liners you can bore them out to 91mm. The cost will then just be pistons and boring.
Westwood liners are making some for another 4.2 owner currently, worth a call?
Westwood liners make the AJP liners for TVR Power and only to their design, so they are only available through DomWestwood liners are making some for another 4.2 owner currently, worth a call?
Bogsye said:
Hmmh. I’ll PM you
Cheers
Brian
Bogseye - if you've a 4.2 can you let me know the measurements you supplied for the rings, bore and piston grooves to Performance Unlimited. Just want to check my measurements.Cheers
Brian
TVR parts did, but now don't have rings in stock, they were around £130 inclusive, which is fair. Sadly some way off getting new stock.
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